Today's Message Index:
----------------------
1. 04:33 AM - resonance 912 (Ted Cowan)
2. 05:46 AM - Re: resonance 912 (John Hauck)
3. 05:50 AM - Re: resonance 912 (robert bean)
4. 06:07 AM - Re: resonance 912 (Jack B. Hart)
5. 06:21 AM - Re: resonance 912 (Ralph B)
6. 06:51 AM - Kolb List Re: resonance 912 (william sullivan)
7. 07:07 AM - Re: Re: Washington state aircraft crash, MK lll (KOLB AIRCRAFT)
8. 07:07 AM - Re: Re: 2008 Kolb Homecoming (KOLB AIRCRAFT)
9. 07:16 AM - Re: resonance 912 (Richard & Martha Neilsen)
10. 07:33 AM - I am officially a sport pilot! (grantr)
11. 07:46 AM - Re: resonance 912 (robert bean)
12. 08:14 AM - Re: I am officially a sport pilot! (George Alexander)
13. 08:17 AM - Re: I am officially a sport pilot! (Dwight)
14. 08:54 AM - fuel line? (grantr)
15. 09:10 AM - Re: Re: LSA (TK)
16. 09:19 AM - Fusing the Ignition System (Kirby, Dennis CTR USAF AFMC MDA/AL)
17. 09:37 AM - Re: Re: LSA (Richard & Martha Neilsen)
18. 10:12 AM - Re: fuel line? (JetPilot)
19. 10:32 AM - Re: resonance 912 (JetPilot)
20. 10:37 AM - Re: LSA (George Alexander)
21. 10:40 AM - passengers/ law suits? (grantr)
22. 10:47 AM - Re: Fusing the Ignition System (JetPilot)
23. 10:50 AM - Re: passengers/ law suits? (JetPilot)
24. 10:53 AM - Re: passengers/ law suits? (Dana Labhart)
25. 12:03 PM - Re: fuel line? (John Hauck)
26. 12:05 PM - Re: passengers/ law suits? (Jim ODay)
27. 12:28 PM - 447 tuning tips (2danglico)
28. 12:29 PM - Re: passengers/ law suits? (Ralph B)
29. 12:45 PM - Re: 447 tuning tips (Ralph B)
30. 12:46 PM - Re: fuel line? (robert bean)
31. 01:41 PM - Re: passengers/ law suits? (TheWanderingWench)
32. 02:29 PM - Re: LSA (Dana Hague)
33. 02:39 PM - Re: resonance 912 (Jerry Jones)
34. 02:46 PM - Re: Re: resonance 912 (Jerry Jones)
35. 02:52 PM - Re: fuel line? (Dana Hague)
36. 05:31 PM - Re: Wingnuts Fly-in ()
37. 05:32 PM - Re: passengers/ law suits? (grantr)
38. 05:57 PM - Re: fuel line? (Tom Jones)
39. 06:05 PM - Re: fuel line? (robert bean)
40. 06:15 PM - Re: fuel line? (JetPilot)
41. 06:17 PM - Re: Re: passengers/ law suits? (TheWanderingWench)
42. 06:31 PM - Re: fuel line? (robcannon)
43. 06:36 PM - Re: Re: fuel line? (Dana Hague)
44. 07:16 PM - Re: Re: fuel line? (Jeremy Casey)
45. 07:19 PM - Re: passengers/ law suits? (lcottrell)
46. 07:28 PM - Re: Wingnuts Fly-in (Jack B. Hart)
47. 08:02 PM - Re: I am officially a sport pilot! (Flycrazy8@aol.com)
48. 09:10 PM - Re: Use of Facet fuel pumps as backup to pulse pump (HShack@AOL.COM)
49. 09:32 PM - Re: Use of Facet fuel pumps as backup to pulse pump (HShack@aol.com)
Message 1
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So far some great imput on the rum rum of my 912. By the way, my wife says
she can hear the 'roll' quite distinctly from the ground. Another person
said it sounded more like a chopper coming.
to Jack Hart: I am using a three blade warp taper tip. Thought originally
this was the trouble (still not proven otherwise) and checked the blades
very carefully. Blades were all different widths at taper and one was
shorter. I think one has a different twist slightely (might be the problem
but how you gonna get warp to believe it without trying another set of
blades?) Sent blades back twice which corrected everything but the slight
diffence of twist and I super balanced them before installation (horizontal
and verticle) and set the blade pitch with a lazer pointing over six feet
away. No decernable vibration from he blades now. If it is gearbox, the
blades make it louder.
Also to Mr. Hart: Yes, I have the plastic streamlining on my struts. Can
reach down and feel the struts during flight. Not the problem. Can also
feel under the wings and there is the harmonics there but extra padding and
tapes have shown me it is not likely the culprit, just a residual effect of
the 'noise'. Also tried tapes and padding on the top side of the inboard
wings.
Sooo, as it stands right now, it seems either the prop is producing this or
it is originating in the gear box. That puts Hauck and Bean in the running.
Still has to be proven and "curred".
I am so used to the noise I just keep on truckin. I have learned one thing
from this and I will share it with you all. Next time I cover the wings of
a Kolb, I will put dampening material fixed to the cloth inside the wing
both on the bottom and the top inside all the way to the first ribs or so.
I believe the light weight material will dramatically reduce all vibrational
noise from the wings. I have been doing the same thing to the fuse insides
for years. Makes a hugh difference in drumming.
Thanks so far. Lets find out what this is to benefit all that has the
problem and for the future. Ted Cowan, Alabama, Slingshot 912.
Message 2
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| Subject: | Re: resonance 912 |
> Thanks so far. Lets find out what this is to benefit all that has the
> problem and for the future. Ted Cowan, Alabama, Slingshot 912.
Ted C:
I think I recommended covering the rear windows. May or may not cure your
problem. Don't know. Won't know whether it will or not if you don't try
it. Only takes a minute to tape on some scrap lexan to cover those two big
holes back there.
john h
mkIII
Message 3
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| Subject: | Re: resonance 912 |
Ted, you gave me a thought. -surprised that you found differences in
the warp blades, Im using two from
a three blade set. I may check all three against each other to look
for any differences.
The only balancing I've done is hanging from fish line through a
machined center plug.
I'll check individual balance points and weights.
BB
On 8, Sep 2008, at 7:33 AM, Ted Cowan wrote:
>
> So far some great imput on the rum rum of my 912. By the way, my
> wife says she can hear the 'roll' quite distinctly from the
> ground. Another person said it sounded more like a chopper coming.
>
> to Jack Hart: I am using a three blade warp taper tip. Thought
> originally this was the trouble (still not proven otherwise) and
> checked the blades very carefully. Blades were all different
> widths at taper and one was shorter. I think one has a different
> twist slightely (might be the problem but how you gonna get warp to
> believe it without trying another set of blades?) Sent blades back
> twice which corrected everything but the slight diffence of twist
> and I super balanced them before installation (horizontal and
> verticle) and set the blade pitch with a lazer pointing over six
> feet away. No decernable vibration from he blades now. If it is
> gearbox, the blades make it louder.
>
> Also to Mr. Hart: Yes, I have the plastic streamlining on my
> struts. Can reach down and feel the struts during flight. Not the
> problem. Can also feel under the wings and there is the harmonics
> there but extra padding and tapes have shown me it is not likely
> the culprit, just a residual effect of the 'noise'. Also tried
> tapes and padding on the top side of the inboard wings.
>
> Sooo, as it stands right now, it seems either the prop is producing
> this or it is originating in the gear box. That puts Hauck and
> Bean in the running. Still has to be proven and "curred".
>
> I am so used to the noise I just keep on truckin. I have learned
> one thing from this and I will share it with you all. Next time I
> cover the wings of a Kolb, I will put dampening material fixed to
> the cloth inside the wing both on the bottom and the top inside all
> the way to the first ribs or so. I believe the light weight
> material will dramatically reduce all vibrational noise from the
> wings. I have been doing the same thing to the fuse insides for
> years. Makes a hugh difference in drumming.
>
> Thanks so far. Lets find out what this is to benefit all that has
> the problem and for the future. Ted Cowan, Alabama, Slingshot 912.
>
>
Message 4
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| Subject: | Re: resonance 912 |
At 06:33 AM 9/8/08 -0500, you wrote:
>
>to Jack Hart: I am using a three blade warp taper tip. Thought originally
>this was the trouble (still not proven otherwise) and checked the blades
>very carefully. Blades were all different widths at taper and one was
>shorter. I think one has a different twist slightely (might be the problem
>but how you gonna get warp to believe it without trying another set of
>blades?) Sent blades back twice which corrected everything but the slight
>diffence of twist and I super balanced them before installation (horizontal
>and verticle) and set the blade pitch with a lazer pointing over six feet
>away. No decernable vibration from he blades now. If it is gearbox, the
>blades make it louder.
>
Ted,
I was more concerned about inertia. The greater the propeller inertia, more
and more of the engine firing impulse, must be transmitted and adsorbed by
the mounts, cage and surrounding structure. I believe Bob Bean has the best
idea. I would try the lowest inertia two blade wood propeller I could find.
Two blades will pretty much act as one passing the wing trailing edge, and
so the beat frequency will be lowered from three to one. This should make a
noticeable change if the resonance is caused by propeller blast to the wing
surfaces. If that is not the case then the lowering of the propeller
inertia should help reduce the amount of engine firing impulse to the cage
etc.
In either case you should come out with a quieter flying machine. If it
works out well, you can always recover most of the cost by selling your
present propeller.
Fly safe!
Jack B. Hart FF004
Winchester, IN
Message 5
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| Subject: | Re: resonance 912 |
When I bought my 912 Kolbra, Mark took it for a test flight to make sure everything
was fine. On the ground, I noticed a resonating sound and I thought it was
coming from the gears. Shortly thereafter, I switched oil to Honda HP4, a semi-synthetic
motorcycle oil, which has gear additives. Prior to this, Mark was
using Valvoline DuraBlend which is a good engine oil but has no gear lube in
it. I believe this made a difference in the drumming noise from the gears. Rotax
recommends a quality motorcycle oil for the 912. Lubricating the gears is high
priority.
Ralph B.
--------
Ralph B
Original Firestar 447
N91493 E-AB
21 years flying it
Kolbra 912UL
N20386
0 years flying it
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3154#203154
Message 6
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| Subject: | Kolb List re: resonance 912 |
- Ted- I have no experience, but- I think somebody went through this a
few months ago.- Do you have a spare prop you could switch out?
-
-------------------------
--------------- Bill Sullivan
-
Message 7
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| Subject: | Re: Washington state aircraft crash, MK lll |
there is no connection .
----- Original Message -----
From: Arksey@aol.com
To: kolb-list@matronics.com
Sent: Saturday, August 23, 2008 9:50 PM
Subject: Kolb-List: Re: Washington state aircraft crash, MK lll
Richland Airport
IATA: RLD =93 ICAO: KRLD =93 FAA: RLD
Summary
Airport type Public
Owner Port of Benton
Serves Richland, Washington
Elevation AMSL 394 ft / 120 m
Runways
Direction Length Surface
ft m
1/19 4,009 1,222 Asphalt
8/26 3,995 1,218 Asphalt
RICHLAND-- An experimental aircraft flying in the skies over Richland
suddenly plunged to earth Thursday, killing the pilot.
The accident happened around 1:50 PM, according to Richland Police
Captain Mike Cobb. Witnesses told police the plane took off on the
Richland Airport runway, made a hard right bank and simply fell out of
the sky. Witnesses said it looked like the pilot was trying to circle
back around.
Investigators are looking into the possibility of whether 72-year-old
Chuck Bigelow had a medical condition that caused the accident, or if
the experimental one-seater fell apart midair.
Witnesses say the engine may have been sputtering before the plane
came crashing down from about 250 feet.
"I was very distressed to hear it," said Bigelow's friend Robert Ver
Steeg. "It give aviation a black eye."
Crews finished picking up the pieces at the Richland airport Thursday
afternoon. The coroner is conducting an autopsy.
Friends of Bigelow at the scene said he was an avid aviator and auto
racer.
Richland Man Dead in Ultralight Crash At Richland Airport Thursday
Afternoon
Posted: Aug 14, 2008 05:34 PM EDT
Updated: Aug 14, 2008 10:59 PM EDT
RICHLAND, Wash. - A Richland man was killed after his plane crashed at
the Richland Airport just before two o'clock Thursday afternoon.
Richland Police said 72 -year-old Charles Bigelow of Richland was dead
at the scene.
Authorities said Bigelow's Ultralight experimental one seater came
down head first near the runway. Bigelow was the only one on board.
Witnesses told police that it appeared that the engine's RPMs were
going up and down before the crash.
Longtime friend Robert VerSteeg said Bigelow loved all kinds of fast
paced outdoor activities.
VerSteeg was sad to hear the news of his death. He said, "I miss him
already ... a lot of people liked him and he'll be missed. We feel for
the family."
Police Captain Mike Cobb said, "Anytime something like this happens
when someone was essentially enjoying themselves is very, very sad."
Police said there was no fire when the plane crashed.
Bigelow raced his way into the Guinness Book of World Records in a car
that was made in West Richland September 2007. He was the driver of a
car that reached speeds of more than 256 miles per hour.
With Bigelow behind the wheel the Ultimate Aero Twin Turbo set a new
record.
Bigelow was even interviewed live on KNDU after the record was set.
do not archive
jswan firestar ll N663S Michigan
-------------------------------------------------------------------------
-----
It's only a deal if it's where you want to go. Find your travel deal
here.
Message 8
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| Subject: | Re: 2008 Kolb Homecoming |
scott, the kolb homecoming will be sept. 19, 20, 21. this year. see ya,
donnie.
----- Original Message -----
From: "icrashrc" <icrashrc@aol.com>
Sent: Wednesday, September 03, 2008 3:56 AM
Subject: Kolb-List: Re: 2008 Kolb Homecoming
>
> John,
>
> Has Kolb changed the date of the Homecoming this year? I thought it was
always the last weekend in September. Or are you planning on driving Donnie
and Travis crazy for an entire week?
>
> Scott [who might have to adjust his schedule...]
>
>
> BTW, i think the Travis needs to bring his banjo to the Homecoming
petition should start soon. :-)
>
> --------
> Scott
>
> www.ill-EagleAviation.com
>
> do not archive
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 2264#202264
>
>
Message 9
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| Subject: | Re: resonance 912 |
Ted
I have had differing levels of noise in my MKIIIC. When I had a direct drive
VW the noise was horrible. It was primarily from the prop going supersonic.
When I switched to a reduction drive it got much better. Then I changed to
my new engine mount and the noise got louder. The mounting bushings are
wider spaced which controls the engine better but allows more engine
vibration to get to the airframe. The latest redrive smoothed out the
engine/redrive harmonics so again I got some noise reduction. Bottom line
make the engine as smooth as possible and use the softest bushings/vibration
dampers you can get.
When I had my quietest engine/mount, I experimented with putting VGs on my
cockpit windows hopping for more speed (it didn't help) but what I found was
that it reduced the noise. The sharp break at the back edge of my cockpit
doors causes a considerable amount of turbulence that drums the sides of
cockpit fabric. The VGs smoothes this out a bit.
If you can't stop the noise at the source then keep it from getting to you.
I found a product at Oshkosh that may help. Check out WWW.Soundexproducts
It is very expensive but looks like it will block and or absorb noise and it
is very light.
Keep us up to date on your progress.
Rick Neilsen
Redrive VW powered MKIIIC
Message 10
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| Subject: | I am officially a sport pilot! |
I took my check ride yesterday in my Kolb and passed! It feels good to finally
accomplish getting a pilot license. Should have done it 9 years ago when I was
taking PPL training.
Better late than never :D
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3174#203174
Message 11
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| Subject: | Re: resonance 912 |
-or you can start a propeller collection. My "office" here now
sports a nice shiny powerfin 3 blade on the wall.
Next will be the warpdrive. The ceiling has a four blade fan to
accompany the motif .
BB
On 8, Sep 2008, at 10:05 AM, Jack B. Hart wrote:
> <jbhart@onlyinternet.net>
>
> At 06:33 AM 9/8/08 -0500, you wrote:
>>
>> to Jack Hart: I am using a three blade warp taper tip. Thought
>> originally
>> this was the trouble (still not proven otherwise) and checked the
>> blades
>> very carefully. Blades were all different widths at taper and one
>> was
>> shorter. I think one has a different twist slightely (might be
>> the problem
>> but how you gonna get warp to believe it without trying another
>> set of
>> blades?) Sent blades back twice which corrected everything but the
>> slight
>> diffence of twist and I super balanced them before installation
>> (horizontal
>> and verticle) and set the blade pitch with a lazer pointing over
>> six feet
>> away. No decernable vibration from he blades now. If it is
>> gearbox, the
>> blades make it louder.
>>
>
> Ted,
>
> I was more concerned about inertia. The greater the propeller
> inertia, more
> and more of the engine firing impulse, must be transmitted and
> adsorbed by
> the mounts, cage and surrounding structure. I believe Bob Bean has
> the best
> idea. I would try the lowest inertia two blade wood propeller I
> could find.
> Two blades will pretty much act as one passing the wing trailing
> edge, and
> so the beat frequency will be lowered from three to one. This
> should make a
> noticeable change if the resonance is caused by propeller blast to
> the wing
> surfaces. If that is not the case then the lowering of the propeller
> inertia should help reduce the amount of engine firing impulse to
> the cage
> etc.
>
> In either case you should come out with a quieter flying machine.
> If it
> works out well, you can always recover most of the cost by selling
> your
> present propeller.
>
> Fly safe!
>
> Jack B. Hart FF004
> Winchester, IN
>
>
Message 12
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| Subject: | Re: I am officially a sport pilot! |
grantr wrote:
> I took my check ride yesterday in my Kolb and passed! It feels good to finally
accomplish getting a pilot license. Should have done it 9 years ago when I
was taking PPL training.
>
> Better late than never :D
Congratulations Grant! No matter how or when, you got r dun!
DO NOT ARCHIVE
--------
George Alexander
FS II R503 N709FS
http://gtalexander.home.att.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3189#203189
Message 13
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| Subject: | Re: I am officially a sport pilot! |
Congrats Grant, way to go!!
Dwight
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3194#203194
Message 14
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II want to replace my fuel lines. What is the best line to replace it with.
My instructor said he used vinyl line back in the 90s on a phantom and that same
fuel line is still good. Its hard but will not break.
Tygon and the blue fuel lines are nothing like this.
Does anyone use vinyl fuel line?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3203#203203
Message 15
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George Alexander wrote:
>
>
> tc1917(at)bellsouth.net wrote:
>
>> I may be wrong here, correct me please, but I was under the impression that
>> an AP-1 rating was a lesser rating than AP-2. In other words, if you had an
>> AP-2, you were qualified in tail dragger AND nose wheel. You were stepping
>> up a notch. Same as if you are rated for over 87 knots, you were
>> automatically qualified for the lesser of the ratings. Any other way of
>> interpreting it would be ridiculous.
>>
>
>
> Ted:
>
> For Sport Pilot, no "ranking" of LSA sets. The practical test for Sport Pilot
gets you a set endorsement for the aircraft used. Have to do additional work
for the others you want/need. Differences in handling characteristics is the
reason given for the additional requirement(s).
>
> >From the FARs.......
>
> Sec. 61.323
>
> How do I obtain privileges to operate a make and model of light-sport aircraft
in the same category and class within a different set of aircraft?
>
> If you hold a sport pilot certificate and seek to operate a make and model of
light-sport aircraft in the same category and class but within a different set
of aircraft as the make and model of aircraft for which you have received an
endorsement, you must-
> (a) Receive and log ground and flight training from an authorized instructor
in a make and model of light-sport aircraft that is within the same set of aircraft
as the make and model of aircraft you intend to operate;
> (b) Receive a logbook endorsement from the authorized instructor who provided
you with the aircraft specific training specified in paragraph (a) of this section
certifying you are proficient to operate the specific make and model of
light-sport aircraft.
>
> --------
> George Alexander
> FS II R503 N709FS
> http://gtalexander.home.att.
>
George,
If I understand you correctly, if I were to get certified as a Sport
Pilot in an Aeronca then I would only be allowed to fly that type of
plane? What does that do to those that have transitioned from a GA
licenses to Sport Pilot. Are they then restricted to only flying their
current aircraft type? I know of two individuals that have transitioned
to Sport Pilot and was wondering how it would affect them.
I'm having second thoughts about Sport Pilot certification if that is
the restriction.
Terry - FireFly #95
Message 16
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| Subject: | Fusing the Ignition System |
(NOTE - Subject line changed to reflect current topic.)
"JetPilot" wrote: << For the ignition system on an HKS, you are best off
to NEVER use a fuse on it, ... Why would you want a fuse or any device
that
could suddenly cut power to your ignition system in order to protect it?
>>
Mike -
The 912ul Installation Manual says to put a 30-amp fuse on the hot (+)
lead going to the ignition. That's how I wired mine, using a simple
in-line fuse. And although your logic of removing this fuse for the
sake of eliminating a potential electrical power stoppage to your engine
sounds valid, I like to think the manufacturer (Rotax) knows what's best
for operation of their engines.
I guess I look at it this way: If an electrical anomaly should occur on
my Kolb that would send a runaway power surge toward the ignition
system, the fuse should take care of it. The fuse blows, electrical
power to the ignition is interrupted, engine stops, I land.
With NO fuse installed, that same power surge would instead fry my
ignition. Engine stops (maybe a few seconds later that if a fuse WERE
installed), I land. Only now, besides an off-airport landing to contend
with, I also have an expensive Rotax ignition system that I now must
replace.
I've seen you chastise fellow Kolb members in the past for offering
"bad" advice on this List. To suggest to someone that they eliminate
the fuse to the ignition system (whether HKS or R-912) is contrary to
the manufacturer's specification. Not sure I would consider that "good"
advice.
Dennis Kirby
Mark-3, 912ul
New Mexico
Do not archive
Message 17
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Terry
I have my PPL and have been flying for under Sport Pilot for three years
since I let my medical lapse. Because of my higher rating I can fly any LSA
airplane even the faster LSA airplanes. I would get training if I were to
fly something different but I'm not required to.
Rick Neilsen
Redrive VW powered MKIIIC
----- Original Message -----
From: "TK" <tkrolfe@toast.net>
Sent: Monday, September 08, 2008 12:09 PM
Subject: Re: Kolb-List: Re: LSA
>
> George Alexander wrote:
>>
>>
>> tc1917(at)bellsouth.net wrote:
>>
>>> I may be wrong here, correct me please, but I was under the impression
>>> that an AP-1 rating was a lesser rating than AP-2. In other words, if
>>> you had an AP-2, you were qualified in tail dragger AND nose wheel. You
>>> were stepping up a notch. Same as if you are rated for over 87 knots,
>>> you were automatically qualified for the lesser of the ratings. Any
>>> other way of interpreting it would be ridiculous.
>>
>>
>> Ted:
>>
>> For Sport Pilot, no "ranking" of LSA sets. The practical test for Sport
>> Pilot gets you a set endorsement for the aircraft used. Have to do
>> additional work for the others you want/need. Differences in handling
>> characteristics is the reason given for the additional requirement(s).
>> >From the FARs.......
>>
>> Sec. 61.323
>>
>> How do I obtain privileges to operate a make and model of light-sport
>> aircraft in the same category and class within a different set of
>> aircraft?
>> If you hold a sport pilot certificate and seek to operate a make and
>> model of light-sport aircraft in the same category and class but within a
>> different set of aircraft as the make and model of aircraft for which you
>> have received an endorsement, you must- (a) Receive and log ground and
>> flight training from an authorized instructor in a make and model of
>> light-sport aircraft that is within the same set of aircraft as the make
>> and model of aircraft you intend to operate; (b) Receive a logbook
>> endorsement from the authorized instructor who provided you with the
>> aircraft specific training specified in paragraph (a) of this section
>> certifying you are proficient to operate the specific make and model of
>> light-sport aircraft.
>>
>> --------
>> George Alexander
>> FS II R503 N709FS
>> http://gtalexander.home.att.
>>
> George,
>
> If I understand you correctly, if I were to get certified as a Sport Pilot
> in an Aeronca then I would only be allowed to fly that type of plane?
> What does that do to those that have transitioned from a GA licenses to
> Sport Pilot. Are they then restricted to only flying their current
> aircraft type? I know of two individuals that have transitioned to Sport
> Pilot and was wondering how it would affect them.
> I'm having second thoughts about Sport Pilot certification if that is the
> restriction.
>
> Terry - FireFly #95
>
>
>
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The tygon and clear vinyl type fuel lines are substandard and cheap, I would not
use those on any plane. They can be very easily cut, punctured, and go bad
over time. You never see this type of fuel line in real airplanes, not even in
boats, cars, and motorcycles...
You do have a couple good options, I use the Aeroquip aircraft fuel hose from Aircraft
Spruce, it is expensive but very good, tough and durable. I don't think
I will ever have to replace it. I also put the fire sleeve over it so that
an engine fire wont melt through the fuel line and quickly become out of control.
The other good option is the black fuel line used for boats. It is also
very tough and wont go bad over time, you can get it at any marine store.
Mike
--------
"NO FEAR" - If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3221#203221
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| Subject: | Re: resonance 912 |
jbhart(at)onlyinternet.ne wrote:
>
> I was more concerned about inertia. The greater the propeller inertia, more
> and more of the engine firing impulse, must be transmitted and adsorbed by
> the mounts, cage and surrounding structure. I believe Bob Bean has the best
> idea. I would try the lowest inertia two blade wood propeller I could find.
>
I would never use a wood propeller on a Kolb with a 912-S. Wooden propellers
are so fragile, the first time you have something go through the prop it will
likely come apart with disastrous results. Not to mention the tendency of wood
to change balance over time, and the problems with keeping it torqued properly
to the hub with changing humidity.
There are lots of Kolbs with 912-S engines that use Warp Drive and other composite
props with no problems like you are having. As a matter of fact, most Kolbs
with 912-S engines, including my use a composite prop, including mine with
no evidence of the problems you are having. There is no reason you should be
forced to use a substandard wooden prop. Its just a matter of finding out what
is causing this problem on your particular plane.
Mike
--------
"NO FEAR" - If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
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[quote="tkrolfe(at)toast.net"]George Alexander wrote:
>
>
>
> tc1917(at)bellsouth.net wrote:
>
>
>
>
> If I understand you correctly, if I were to get certified as a Sport
> Pilot in an Aeronca then I would only be allowed to fly that type of
> plane? What does that do to those that have transitioned from a GA
> licenses to Sport Pilot. Are they then restricted to only flying their
> current aircraft type? I know of two individuals that have transitioned
> to Sport Pilot and was wondering how it would affect them.
>
> I'm having second thoughts about Sport Pilot certification if that is
> the restriction.
>
> Terry - FireFly #95
Terry:
My understanding is what Rick Neilsen said....
Said another way.... a person who has a PPL/GA Ticket can fly LSA equivalent of
that he was signed off for as a private. They do NOT become a Sport Pilot.
They continue to hold the GA Ticket and if their medical lapsed they can fly
aircraft in LSA as long as they have a valid driver license.
If they hold a private with a tail wheel endorsement, they can fly a Savage (>87
KTS Vh TW); a CT (> 87 KTS Vh tri-gear); a Firefly (
--------
George Alexander
FS II R503 N709FS
http://gtalexander.home.att.net
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| Subject: | passengers/ law suits? |
Now that I have my SP license, I have a few friends that would like to go for a
ride however I am scared to take them up due to the possibility of a lawsuit
being filed against me in the event something bad happens and they get seriously
injured or killed. I was told that even if the person does not want to sue
you that his/ her insurance company can sue you.
I know many of you probably take up passengers with you. Do you worry about these
things?
Is there any kind of legal document/ waiver that a passenger can sign stating in
the event of an accident that I as the pilot and owner of the aircraft can not
be held responsible for the injury or death of the passenger?
Doctors have you sign the hold harmless paperwork before surgery.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3225#203225
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| Subject: | Re: Fusing the Ignition System |
Dennis,
Yes, it is possible to fry an expensive ignition module if you do not have a fuse
in line. But again, I have seen fuses just go bad and open up for no reason,
or even the fuses sockets go bad over time and lose the connection. I would
never use a SINGLE fuse in an aircraft ignition, I would rather burn up a module
than risk having my engine unexpectedly and unnecessarily quit. In the
area that I fly in, an off airport landing for me would result in a lot of damage
to my plane, and maybe myself [Shocked] I would risk a module any day
over that.
I downloaded the HKS wiring diagram, they show a separate 3 amp fuse for each ignition
system, which is something I would do. A single fuse or socket going
bad in this setup would not cause an engine failure. One thing that I do not
like in this diagram is that they show the fuse after the ignition switches....
If I was trying to prevent a short from burning up my wires, I would put the
fuses before the switches, not after... Many times shorts happen in or around
the switches themselves. Attached is a picture of the HKS diagram, while it
looks good, though I am not sure they got it right when the show the fuses after
the switches.
Mike
--------
"NO FEAR" - If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3226#203226
Attachments:
http://forums.matronics.com//files/hksignition_279.jpg
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| Subject: | Re: passengers/ law suits? |
There is a form just for this very possibility that you can download from AOPA.
This is a valid concern and I would have passengers sign this before flying
with them. This will cover you in some states, and some states not... But it
sure could not hurt !
The AOPA form is geared towards certifie aircraft, I would also check with EAA
for a similar form that applied more to experimental aircraft.
Mike
--------
"NO FEAR" - If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3229#203229
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| Subject: | Re: passengers/ law suits? |
Yes. Passengers can sue you if they choose.
However, if they choose not to, the insurance companies
will not pursue. This was my experience. And God Bless
Chris Davis for not suing as it would have caused me to
have to sell my home.
Kolb Aircraft has a waiver they make anyone sign that
goes up in one of their planes. Not sure if something like
that would be rock solid, but it would be a start.
Hope this helps.
Dana Labhart
do not archive
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> II want to replace my fuel lines. What is the best line to replace it
with.
>
> My instructor said he used vinyl line back in the 90s on a phantom and
> that same fuel line is still good. Its hard but will not break.
>
> Tygon and the blue fuel lines are nothing like this.
>
> Does anyone use vinyl fuel line?
Grant R:
What is wrong with black neoprene automotive fuel line?
I have been using Gates neoprene fuel line for many years and many hours.
Why would I use that instead of the "normal" ultralight fuel line? Because
vinyl, tygon, polyurethane, and all the rest of those neat lines that you
can see the gas in are prone to failure, especially the pulse lines on two
stroke engine driven fuel pumps.
Some will tell you you must be able to see inside the line so you can see if
there is bubbles in there. If you must see if there are air bubbles in the
line, better not use neoprene. For reliability and longevity, I'll stick to
black neoprene fuel line.
john h
mkIII
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| Subject: | Re: passengers/ law suits? |
This is an excellent topic and faces any of us who carry passengers, even in non-owned
aircraft.
I agree, a "written agreement" before the flying would not hurt and it will create
a speed bump. But if it is a bad situation, you will be sued anyway.
I buy as much liability insurance as I can get (and afford). Often the policy
offered will have a per person limit that is much less than the aggregate or per
occurrence limits. I have found that I can only buy this type w/o experience
in a particular aircraft and after 1 year I can get "smooth" coverage that
has the entire policy limits available to pay a claim.
I also own my planes in a LLC to buffer my personal exposure. It does add to the
annual cost to own, but, like insurance, it is another risk management tool.
It is not any different than offering someone a ride in your car vs. your plane,
if something goes wrong, you as the owner and/or driver/pilot are going to be
in the middle of it. But with most car owners, there is insurance in force
to take care of the financial risks.
The sad part about it is the higher the limits of insurance you have the bigger
target you are too. Should you have an accident and there are injuries, a trial
lawyer will be more to take a case with the pot of gold vs. a victory with
a big buck judgment and a defendant without the ability to pay.
I guess that may be a good rule of thumb for anyone, get good flying the plane,
really good, before taking up others. I was told by my examiner that now I
had a "license to learn more and gain experience".
My personal view is that it is irresponsible to operate an aircraft without liability
insurance. We can damage a lot of things with our planes and should either
have the personal wealth to pay the damages or purchase financial insurance.
The first thing I did when I got my license in the 70's was to pack it up with
my buddies and show them my stuff. I never thought much about insurance then
(did not buy it either) but understand I was 18, bullet proof and "a lot smarter"
[Wink] than most plus I had noting to loose either.
It is fun to share the sport of flying with friends, but it is not without its
risks.
Fly safe,
Jim
Former Kolbster but still like to follow and learn from the list ...
--------
Jim O'Day
Fargo, ND
Firestar II
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I recently bought a used Kolb Firestar with a freshly rebuilt (4Hrs) Rotax 447
single carb. I'm writing in hopes of getting some advise on getting it tuned up.
I'm a little concerned about the EGT/CHT temps I'm getting while operating
at speed. I'm getting a lot of surging and stumbling. It's difficult to find a
happy cruise RPM. Anything below 5000 RPM and it will slowly load up and begin
to lose RPM and run rough. When I try to nudge the throttle up a small amount,
I get a surge that puts me up to 5500 RPM. My EGT is only reading 850-900 even
on my full power climb outs, and my CHT is reading 300-325. I assumed this
was indicating a over rich condition but when I checked the plugs I found the
healthy looking rust/brown color I've seen in the books. I'm thinking that I
may benefit from dropping the needle down(or up?) one notch to lean it out and
see if I can bring my EGT and CHT in line. Does anyone have any feedback or opinions?
Any help I can get will be appreciated. -John
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| Subject: | Re: passengers/ law suits? |
Grant, if you've never taken passengers for a ride, just remember the stall speed
goes up, it sinks a lot more when the power is reduced, and the takeoff roll
is longer. This sounds like I'm preaching to the choir, but it might be one
of those things we forget when flying Light Aircraft. All of this, of course,
depends on the weight of the passenger and this might be a touchy subject when
giving rides to women.
Ralph
--------
Ralph B
Original Firestar 447
N91493 E-AB
21 years flying it
Kolbra 912UL
N20386
0 years flying it
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| Subject: | Re: 447 tuning tips |
2danglico wrote:
> I recently bought a used Kolb Firestar with a freshly rebuilt (4Hrs) Rotax 447
single carb. I'm writing in hopes of getting some advise on getting it tuned
up. I'm a little concerned about the EGT/CHT temps I'm getting while operating
at speed. I'm getting a lot of surging and stumbling. It's difficult to find
a happy cruise RPM. Anything below 5000 RPM and it will slowly load up and begin
to lose RPM and run rough. When I try to nudge the throttle up a small amount,
I get a surge that puts me up to 5500 RPM. My EGT is only reading 850-900
even on my full power climb outs, and my CHT is reading 300-325. I assumed this
was indicating a over rich condition but when I checked the plugs I found the
healthy looking rust/brown color I've seen in the books. I'm thinking that
I may benefit from dropping the needle down(or up?) one notch to lean it out and
see if I can bring my EGT and CHT in line. Does anyone have any feedback or
opinions? Any help I can get will be appreciated. -John
John, this sounds like the jet needle is inside the white cup in the carburetor
slide. This is easy to check by loosening the screws on top of the carb and
pulling out the slide. The needle and clip should be underneath and outside the
cup. The needle and clip go in first on the bottom of the slide, then the spring
with the cable go down the middle inside the cup. Make sure the cable end
is locked into the bottom of the slide before installing the slide into the carb
body.
Ralph
--------
Ralph B
Original Firestar 447
N91493 E-AB
21 years flying it
Kolbra 912UL
N20386
0 years flying it
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Thom Riddle researched this and will have an answer when he returns
from vacation.
There is a qualified tygon variant available.
BB
On 8, Sep 2008, at 11:53 AM, grantr wrote:
> <grant_richardson25@yahoo.com>
>
> II want to replace my fuel lines. What is the best line to replace
> it with.
>
> My instructor said he used vinyl line back in the 90s on a phantom
> and that same fuel line is still good. Its hard but will not break.
>
> Tygon and the blue fuel lines are nothing like this.
>
> Does anyone use vinyl fuel line?
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 3203#203203
>
>
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| Subject: | Re: passengers/ law suits? |
I wanted to get a two-seater so I could take up close friends and relatives, to
let them share in the glory of flying. I told my husband "I'll only take up good
friends and relatives - people who won't sue at the drop of a hat." "It's
not your friends and relatives sueing us that I'm concerned about," he said.
"It's THEIR relatives - most of whom you don't know and who don't know you. And
we're too old to start over again, financially."
When I went bungee jumping, I was asked to read out loud (to a rep of the company
giving the jumps) a 3 page liability waiver form, and initial each paragraph
after I read it. What that does is help protect the company against claims that
you didn't realize it could be life-and-limb threatening. As several folks
on the thread have already noted, it doesn't prevent you from being sued. You
can win the lawsuit and still be out a ton of money.
Having said that - if we hold back for fear of being sued - well, what's the fun
in that type of life?
Arty Trost
Maxair Drifter
Sandy, oregon
www.LessonsFromTheEdge.com
"Life's a daring adventure or nothing"
Helen Keller
"I refuse to tip toe through life just to arrive safely at death."
--- On Mon, 9/8/08, grantr <grant_richardson25@yahoo.com> wrote:
> From: grantr <grant_richardson25@yahoo.com>
> Subject: Kolb-List: passengers/ law suits?
> To: kolb-list@matronics.com
> Date: Monday, September 8, 2008, 10:40 AM
> <grant_richardson25@yahoo.com>
>
> Now that I have my SP license, I have a few friends that
> would like to go for a ride however I am scared to take them
> up due to the possibility of a lawsuit being filed against
> me in the event something bad happens and they get seriously
> injured or killed. I was told that even if the person does
> not want to sue you that his/ her insurance company can sue
> you.
>
> I know many of you probably take up passengers with you.
> Do you worry about these things?
>
> Is there any kind of legal document/ waiver that a
> passenger can sign stating in the event of an accident that
> I as the pilot and owner of the aircraft can not be held
> responsible for the injury or death of the passenger?
>
>
> Doctors have you sign the hold harmless paperwork
> before surgery.
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 3225#203225
>
>
>
>
>
>
>
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At 07:08 AM 9/6/2008, Ted Cowan wrote:
>...It doenst change RPM just makes this horrible rumm rumm rumm which
>changes in volumn at higher RPM but not frequency. Not in the carbs...
Does it sound like a twin engine plane whose throttles aren't quite
synchronized? I get that in my Ultrastar, too, around cruise rpm. My
theory is that it's caused by the exhaust pulse impinging or reflecting off
a prop blade, depending on where the blade is at the moment of the exhaust
pulse. If the redrive is an exact ratio with no slip (mine is 2:1, but
effectively slightly more since all belt drives slip a little) then there
wouldn't any variation in the noise since the blade would always be in the
same place.
-Dana
--
Politicians and diapers have one thing in common. They should both be
changed regularly, and for the same reason.
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| Subject: | Re: resonance 912 |
Yeh, it's great...and exciting...if not expensive to start a
propeller collection. Got a few meself, some remnants from having
turned a few into toothpicks. Had a 3-blade Warp on an 618-powered
Avid that turned a gearbox shim into little pieces. Made a hell of a
racket at idle/taxi speeds, but not the rum rum discussed here. The
prop looked great, especially with the striped white tips I painted
on it. What I didn't know that it was way too heavy for the C-box.
That was something at the time we didn't know about or understand.
Jerry
Fresno
On Sep 8, 2008, at 7:44 AM, robert bean wrote:
>
> -or you can start a propeller collection. My "office" here now
> sports a nice shiny powerfin 3 blade on the wall.
> Next will be the warpdrive. The ceiling has a four blade fan to
> accompany the motif .
> BB
>
> On 8, Sep 2008, at 10:05 AM, Jack B. Hart wrote:
>
>>
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| Subject: | Re: resonance 912 |
>
Not that he needs it, but I endorse Mike's thinking on NOT using a
wooden prop on a Kolb...or any pusher for that matter. I and several
others hereabouts have spent a fair amount of money replacing or
repairing props when things come loose and/or break (exhaust spring
hangars for example). Sometimes you even get to land earlier and not
where you would like when a big chunk of blade takes off on its own.
Jerry
Hangar 2
> I would never use a wood propeller on a Kolb with a 912-S. Wooden
> propellers are so fragile, the first time you have something go
> through the prop it will likely come apart with disastrous
> results. Not to mention the tendency of wood to change balance
> over time, and the problems with keeping it torqued properly to the
> hub with changing humidity.
>
> There are lots of Kolbs with 912-S engines that use Warp Drive and
> other composite props with no problems like you are having. As a
> matter of fact, most Kolbs with 912-S engines, including my use a
> composite prop, including mine with no evidence of the problems you
> are having. There is no reason you should be forced to use a
> substandard wooden prop. Its just a matter of finding out what is
> causing this problem on your particular plane.
>
> Mike
>
> --------
> "NO FEAR" - If you have no fear you did not go as fast
> as you could have !!!
>
> Kolb MK-III Xtra, 912-S
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 3223#203223
>
>
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At 11:53 AM 9/8/2008, grantr wrote:
>II want to replace my fuel lines. What is the best line to replace it with.
>
>My instructor said he used vinyl line back in the 90s on a phantom and
>that same fuel line is still good. Its hard but will not break.
>
>Tygon and the blue fuel lines are nothing like this.
>
>Does anyone use vinyl fuel line?
I use the transparent blue polyurethane line sold by ACS and other aircraft
suppliers. I know it's not as durable as black neoprene but I like to see
if there's any air bubbles or other contamination. Tygon IS vinyl. Their
yellow vinyl (specifically sold as "fuel and lubricant tubing") is OK but I
feel it's too soft, hose clamps can cut into it... and it still hardens so
you need to replace it every year, especially if there's any ethanol in
your fuel. I tried some generic yellow "fuel tubing", supposedly the same
thing as the yellow Tygon, and it hardened up even sooner; I won't buy it
again. I would not use generic clear vinyl tubing, it's not made for fuel
and oil.
-Dana
--
Suicidal twin kills sister by mistake!
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| Subject: | Re: Wingnuts Fly-in |
Hi Jack & List,
It was nice meeting you at Nulltown. Wish you could have stayed longer. Your well
detailed and documented experiments are greatly appreciated in lieu of the
normal subjective results or pure hear-say often presented on the net. So, in
the spirit of accuracy, I have to make a small correction to your report: I'm
hangared at Dahio (I44) not Green Acres. Been there since 1985. Feel free to
drop in sometime!
Dick Graham
Firestar 447
1,600 Kolb Hrs.
> Jack Hart wrote:
Kolbers,
>
> Yesterday, I flew a little cross country from Winchester to just south of
> Nulltown to a little ultra-light field tucked in between a line of trees next
> to a river. They have a yearly hog roast. When I parked I was next to
> another Kolb. It turned out to be Dick Graham who hangars at Green Acres
> next to New Lebanon, Ohio and a member of this list.
>
Message 37
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| Subject: | Re: passengers/ law suits? |
>
> I also own my planes in a LLC to buffer my personal exposure. It does add to
the annual cost to own, but, like insurance, it is another risk management tool.
>
If the plane is owned by a LLC then you cant be personally sued correct?
Also If something did happen couldn't you just move all of your assets over to
your spouses name or children? Then you wouldn't have anything for them to get!
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3290#203290
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I think at least one LSA manufacturer is using Nylaflow tubing for fuel line.
At least that is what it looks like. It might be worth looking into. fairly
inexpensive, easy to work with, and I would think very durable.
See it here http://www.aircraftspruce.com/catalog/appages/nylaflow.php
--------
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3296#203296
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a follow up for the impatient:
the manufacturer is Saint-Gobain. Some of their products are
available through McMaster-Carr
Their fuel rated tubing is F-4040 but their test is stated as using
ethanol free gas.
They also make an ultra chemical resistant tubing F-2075
http://tinyurl.com/ny6gt
BB
On 8, Sep 2008, at 3:45 PM, robert bean wrote:
>
> Thom Riddle researched this and will have an answer when he returns
> from vacation.
> There is a qualified tygon variant available.
> BB
>
> On 8, Sep 2008, at 11:53 AM, grantr wrote:
>
>> <grant_richardson25@yahoo.com>
>>
>> II want to replace my fuel lines. What is the best line to replace
>> it with.
>>
>> My instructor said he used vinyl line back in the 90s on a phantom
>> and that same fuel line is still good. Its hard but will not break.
>>
>> Tygon and the blue fuel lines are nothing like this.
>>
>> Does anyone use vinyl fuel line?
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p 3203#203203
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
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Dana wrote:
>
>
> I know it's not as durable as black neoprene but I like to see
> if there's any air bubbles or other contamination.
>
>
John H said it very well that there is no reason you need clear fuel line. When
was the last time you saw a Cessna, or any other type of aircraft or car with
clear line so that you could " See " bubbles ? If you do not do something
stupid in your fuel system design, like try to PULL fuel up with a fuel pump,
bubbles will never be an issue. In a properly designed fuel system, a leak would
be indicated be a drip or a wet spot, not by bubbles and sudden engine stoppage...
Contamination, you are not likely to see it in the line... That is
what fuel sumps and filters are for. You are fooling yourself if you think that
you are safe from contamination, or that you will catch it because of clear
fuel line.
Now you are willing to use fuel line that goes bad over time, is very prone to
damage and even out of control leaks with even a little heat or mechanical abuse
on the misguided belief that you need to be able to see the fuel in the line.
Thank god almost every manufacturer of vehicles in the world does not buy
into this foolishness, or we would have cars burning on the side of the road,
and airplanes coming down in fireballs every day. That clear fuel line is cheap,
and it is a hazard.
Mike
--------
"NO FEAR" - If you have no fear you did not go as fast as you could
have !!!
Kolb MK-III Xtra, 912-S
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3299#203299
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| Subject: | Re: passengers/ law suits? |
First...I'm not a lawyer, and 2nd...the laws regarding LLCs vary from state to
state. Here in Oregon, my lawyer advised me that LLCs offer little protection
if it can be established that you created one primarily as a shield from liability
lawsuits.
Arty Trost
Maxair Drifter
Sandy, OR
www.LessonsFromTheEdge.com
"Life's a daring adventure or nothing"
Helen Keller
"I refuse to tip toe through life just to arrive safely at death."
--- On Mon, 9/8/08, grantr <grant_richardson25@yahoo.com> wrote:
> From: grantr <grant_richardson25@yahoo.com>
> Subject: Kolb-List: Re: passengers/ law suits?
> To: kolb-list@matronics.com
> Date: Monday, September 8, 2008, 5:32 PM
> <grant_richardson25@yahoo.com>
>
>
> >
> > I also own my planes in a LLC to buffer my personal
> exposure. It does add to the annual cost to own, but, like
> insurance, it is another risk management tool.
> >
>
>
> If the plane is owned by a LLC then you cant be personally
> sued correct?
>
> Also If something did happen couldn't you just move all
> of your assets over to your spouses name or children? Then
> you wouldn't have anything for them to get!
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p 3290#203290
>
>
>
>
>
>
>
Message 42
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I recently was faced with the same question about fuel line, and asked a friend
who is a meticulous marine mechanic. He built a Beaver RX 550 over ten years
ago and used clear yellow Tygon brand fuel line and is still using the original
fuel line. I inspected this 12 ish year old line and it was still soft and
supple, and in good shape. (His was encased in black split loom)(uv protected)
Another chainsaw mechanic I spoke with said he has used it for years as the
pickup line into the gas tank with no visible breakdown or hardening. It can
be cut easily, and therefore needs to be installed correctly, but I still believe
it to be a good choice for ultralight fuel line, as it is proven to not break
down for a long time.
It is possible that there are different brands of Tygon, but the kind I bought
says "Tygon" on the box.
Rob Cannon [Wink]
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3305#203305
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At 09:15 PM 9/8/2008, JetPilot wrote:
>...If you do not do something stupid in your fuel system design, like try
>to PULL fuel up with a fuel pump, bubbles will never be an issue. In a
>properly designed fuel system, a leak would be indicated be a drip or a
>wet spot, not by bubbles...
Well, in the original UltraStar design, the tanks are below the engine...
and too far away to mount a pulse pump to push the fuel, so pulling it is
the only option. If a leak develops anywhere, it's going to show up as
bubbles... and I want to see them during my preflight runup. With every
inch of the fuel system visible during preflight inspection, it's easy to
verify that the lines are intact... and no trouble to replace them every
year or so.
-Dana
--
A pilot is a confused soul who talks about women when he's flying, and
about flying when he's with a woman.
Message 44
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For what it is worth...RANS recently released a Service Bulletin saying
to get rid of all the blue and clear poly-stuff fuel line and go to the
automotive stuff. The poly-stuff has been found to not like ethanol
(there it is again ;-( ) Supposedly there is some more expensive
poly-stuff lines that are ethanol OK but why bother? The SAE 30R7 stuff
from GATES is available at every NAPA, doesn't mind ethanol and is
(comparatively) cheap...
Jeremy
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| Subject: | Re: passengers/ law suits? |
I guess I'm a "fatalist", I take every precaution that I possibly can, then go
ahead and do the best I can. I would not take any body up that I did not personally
know without a very good reason. If I do take someone up, I make sure that
I fly very carefully and safely, keeping in mind that stall speeds are up and
the plane will be a lot heavier than I am used to. My best landings are reserved
for passengers. Granted nothing is fool prof, but I personally do not intend
to spend the rest of my days worrying about what could happen. If it somehow
should bite me in the butt, so be it. I will deal with it when it happens.
I just returned from a "fishing and hunting trip down in the Owyhee Canyon that
is too long to post here, but I will send it to anyone that would like to view
it. It is 2280 KB.
Larry C, Oregon
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 3314#203314
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| Subject: | Re: Wingnuts Fly-in |
At 08:29 PM 9/8/08 -0400, you wrote:
>
>Hi Jack & List,
>
>It was nice meeting you at Nulltown. Wish you could have stayed longer.
Your well detailed and documented experiments are greatly appreciated in
lieu of the normal subjective results or pure hear-say often presented on
the net. So, in the spirit of accuracy, I have to make a small correction to
your report: I'm hangared at Dahio (I44) not Green Acres. Been there since
1985. Feel free to drop in sometime!
>
>Dick Graham
>Firestar 447
>1,600 Kolb Hrs.
Dick,
My apologies. I had you pinned on a map and I read the listing incorrectly.
I would have liked to stay longer, but my wife who drove down needed to get
home. She is one of the working retired folks, and she had a rough week
traveling etc. If she had not suggested that I fly down, I would not have
come. She needed the rest. Also, we built a new home here, and I am still
smoothing out and planting grass seed. Planted a bunch and it has not seen
rain yet. So I water for two days, and then I have a day off. Saturday was
not a day off.
It is great to get out to be with others who enjoy building and flying small
planes. There are two hangars here at I22 contain very small aircraft, but
I never see them fly. I belong to an EAA Chapter down at Hagerstown, but we
only meet once a month, and there are not very many of us.
I am converting the vacuum gage I had in my lap to a manometer, and I have
designed up a mounting for it so it can be attached to the upper left of the
windshield bow. Once it is mounted, and a few more test flights completed
to check system performance, I want to start making some little cross
countries so that I establish fuel flow rates for a given EGT and rpm. So
there is a chance I will come your way.
It was nice to meet and talk with you.
Jack B. Hart FF004
Winchester, IN - I22
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| Subject: | Re: I am officially a sport pilot! |
Congrats to you Grant on becoming one of the few and the proud !!
You did good !!
Stephen
Firefly 2003
Donalsonville , Georgia
_www.southernflyersul.com_ (http://www.southernflyersul.com)
**************Psssst...Have you heard the news? There's a new fashion blog,
plus the latest fall trends and hair styles at StyleList.com.
(http://www.stylelist.com/trends?ncid=aolsty00050000000014)
Message 48
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| Subject: | Re: Use of Facet fuel pumps as backup to pulse pump |
The following is offered not as advice but merely reflects my experience.
After not flying my FS II for about 6 weeks, 3 times my engine [503 dcdi]
dropped rpms & appeared to go to idle. Each time I landed OK. Changed pulse
pump & pulse line - problem solved.
This got me to thinking that an electric pump as a backup would be a good
idea. After reading the archives, most people who use them say they fill their
float bowls & turn them on when taking off & landing.
I will fill my float bowls &, if needed, turn it on if the pulse pump fails.
I will NOT turn it on when taking off or landing for this reason- if there
is a crash [most likely during takeoff or landing] the fuel pump MAY continue
to pump fuel, causing a small fire to be a big one.
This exact thing happened at our field about 3 years ago. The pilot was
burned over 90% w/ 3rd degree burns; They pulled the plug after 10 days in
hospital.
Also, there is a question on the Sport Pilot test that indicates the backup
fuel pump not be used for TO & landing [I assume for the same reason].
I welcome other thoughts on this matter.
Howard Shackleford
FS II
SC
In a message dated 9/8/2008 10:29:08 P.M. Eastern Daylight Time,
jbhart@onlyinternet.net writes:
--> Kolb-List message posted by: "Jack B. Hart" <jbhart@onlyinternet.net>
At 08:29 PM 9/8/08 -0400, you wrote:
>
>Hi Jack & List,
>
>It was nice meeting you at Nulltown. Wish you could have stayed longer.
Your well detailed and documented experiments are greatly appreciated in
lieu of the normal subjective results or pure hear-say often presented on
the net. So, in the spirit of accuracy, I have to make a small correction to
your report: I'm hangared at Dahio (I44) not Green Acres. Been there since
1985. Feel free to drop in sometime!
>
>Dick Graham
>Firestar 447
>1,600 Kolb Hrs.
Dick,
My apologies. I had you pinned on a map and I read the listing incorrectly.
I would have liked to stay longer, but my wife who drove down needed to get
home. She is one of the working retired folks, and she had a rough week
traveling etc. If she had not suggested that I fly down, I would not have
come. She needed the rest. Also, we built a new home here, and I am still
smoothing out and planting grass seed. Planted a bunch and it has not seen
rain yet. So I water for two days, and then I have a day off. Saturday was
not a day off.
It is great to get out to be with others who enjoy building and flying small
planes. There are two hangars here at I22 contain very small aircraft, but
I never see them fly. I belong to an EAA Chapter down at Hagerstown, but we
only meet once a month, and there are not very many of us.
I am converting the vacuum gage I had in my lap to a manometer, and I have
designed up a mounting for it so it can be attached to the upper left of the
windshield bow. Once it is mounted, and a few more test flights completed
to check system performance, I want to start making some little cross
countries so that I establish fuel flow rates for a given EGT and rpm. So
there is a chance I will come your way.
It was nice to meet and talk with you.
Jack B. Hart FF004
Winchester, IN - I22
**************Psssst...Have you heard the news? There's a new fashion blog,
plus the latest fall trends and hair styles at StyleList.com.
(http://www.stylelist.com/trends?ncid=aolsty00050000000014)
Message 49
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| Subject: | Re: Use of Facet fuel pumps as backup to pulse pump |
Sorry- I meant to delete everything after my signature.
Howard Shackleford
FS II
SC
In a message dated 9/9/2008 12:10:57 A.M. Eastern Daylight Time,
HShack@AOL.COM writes:
The following is offered not as advice but merely reflects my experience.
____________________________________
Psssst...Have you heard the news? _There's a new fashion blog, plus the
latest fall trends and hair styles at StyleList.com_
(http://www.stylelist.com/trends?ncid=aolsty00050000000014) .
(http://www.matronics.com/Navigator?Kolb-List)
(http://www.matronics.com/contribution)
**************Psssst...Have you heard the news? There's a new fashion blog,
plus the latest fall trends and hair styles at StyleList.com.
(http://www.stylelist.com/trends?ncid=aolsty00050000000014)
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