Today's Message Index:
----------------------
1. 03:55 AM - blade harmonics (Ted Cowan)
2. 05:04 AM - Re: blade harmonics (Jim Kmet)
3. 05:26 AM - Re: 912 ULS starter (Thom Riddle)
4. 06:59 AM - Re: Harsh words about Rotax (Blumax008@aol.com)
5. 07:44 AM - Re: blade harmonics (Jack B. Hart)
6. 08:23 AM - Re: blade harmonics (Richard Girard)
7. 08:23 AM - Re: blade harmonics (lucien)
8. 09:06 AM - Re: Harsh words about Rotax (lucien)
9. 09:20 AM - Victoria Falls (pj.ladd)
10. 09:36 AM - Re: Re: Harsh words about Rotax (John Hauck)
11. 09:40 AM - Re: Victoria Falls (John Hauck)
12. 09:40 AM - Re: Re: blade harmonics (Dana Hague)
13. 09:43 AM - Re: Victoria Falls (william sullivan)
14. 10:16 AM - Re: Harsh words about Rotax (lucien)
15. 10:27 AM - Re: blade harmonics (lucien)
16. 10:49 AM - Re: Re: blade harmonics (Dennis Watson)
17. 11:08 AM - Re: blade harmonics (lucien)
18. 11:41 AM - Re: Victoria Falls (Larry Cottrell)
19. 12:42 PM - Re: Re: blade harmonics (John Hauck)
20. 02:35 PM - Re: Re: blade harmonics (Dana Hague)
21. 02:38 PM - Re: 912 ULS starter (Thom Riddle)
22. 02:54 PM - V.W.conversion (frank.goodnight)
23. 03:26 PM - now an actual Kolb question (lucien)
24. 03:59 PM - Re: Back to gascolators (Dave Kulp)
25. 04:28 PM - Re: Victoria Falls (TheWanderingWench)
26. 05:14 PM - Re: now an actual Kolb question (John Hauck)
27. 05:26 PM - Re: now an actual Kolb question (herb)
28. 05:33 PM - Re: now an actual Kolb question (John Hauck)
29. 05:36 PM - Re: Back to gascolators (Mike Welch)
30. 06:56 PM - Re: Back to gascolators (JetPilot)
31. 07:34 PM - Re: Back to gascolators (Jack B. Hart)
32. 07:59 PM - Mixture control... (herb)
33. 08:02 PM - Re: V.W.conversion (Richard & Martha Neilsen)
34. 08:02 PM - Re: now an actual Kolb question (lucien)
35. 08:21 PM - Re: Re: now an actual Kolb question (John Hauck)
36. 09:08 PM - Re: V.W.conversion (jerb)
37. 09:10 PM - Re: Re: 912 ULS starter (b young)
Message 1
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I still have the problem of harmonics with my blades on my slingshot. I
have narrowed it back down to the blades. even though they have been sent
back twice and super balanced by myself and lazer set, it is still there,
buzz buzz buzz. drives you nuts. put a good anr set in my helmet and that
makes it tolerable. friend has a new set of wd blades down in florida.
gotta get down there and put them on my plane. if it makes it go away I am
going after wd for new blades big time. this noise is awsome and sounds
like I am flying a five o'clock charlie in korea. good luck. on two of my
blades you can see the cloth and one has a smaller tip. told wd this and
they didnt do anything but grind them down further. gotta prove it first.
will think twice about my next set of blades. ted cowan, alabama, slingshot
912. p.s. if it werent for this harmonic problem I think I have the perfect
flying machine, zoom zoom. at least for me.
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Subject: | Re: blade harmonics |
Hey Ted, I just started flying my MK-3C with a 912 with the Titan exhaust,(&
WD Prop) & have a similar harmonics. Now don`t get me wrong, mine isn`t as
pronounced as yours, & I`ve only flown it 2.2 hours with the 912, but here`s
something I`m gonna try, unless you already have & proven it doesn`t work.
When I look at the exhaust/prop view from the side, my exhaust is hitting
the blades a few inches up the blade in the flatter area of the prop. My
exhaust goes straight up now, but if I rotate it 90 degrees either way, it
looks like it will hit the prop more in the "hub -to -blade transition area,
in the round part of the blade just as it exits the hub. It will be another
week or 2 before I get to try this, So if you already have, or do soon, let
me know what happened. Also, mine isn`t so bad that a tweak of the throttle
lessens it & If it doesnt` go away, I`ll probably live with it.
None on my friends have mentioned it, & I have`nt either, on purpose, to see
if anyone else notices.
Thanks,
Jim Kmet
Cookeville, TN
MK-3C 912
MK-3C 582
----- Original Message -----
From: "Ted Cowan" <tc1917@bellsouth.net>
Sent: Wednesday, April 08, 2009 5:53 AM
Subject: Kolb-List: blade harmonics
>
> I still have the problem of harmonics with my blades on my slingshot. I
> have narrowed it back down to the blades. even though they have been sent
> back twice and super balanced by myself and lazer set, it is still there,
> buzz buzz buzz. drives you nuts. put a good anr set in my helmet and
> that makes it tolerable. friend has a new set of wd blades down in
> florida. gotta get down there and put them on my plane. if it makes it go
> away I am going after wd for new blades big time. this noise is awsome
> and sounds like I am flying a five o'clock charlie in korea. good luck.
> on two of my blades you can see the cloth and one has a smaller tip. told
> wd this and they didnt do anything but grind them down further. gotta
> prove it first. will think twice about my next set of blades. ted cowan,
> alabama, slingshot 912. p.s. if it werent for this harmonic problem I
> think I have the perfect flying machine, zoom zoom. at least for me.
>
>
>
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Subject: | Re: 912 ULS starter |
I believe the typical draw while cranking the 912ul is about 75 amps. I'm going
to check mine today and will report back. 912ULS may be different.
--------
Thom Riddle
Buffalo, NY
http://riddletr.googlepages.com/sportpilot-cfi
http://riddletr.googlepages.com/a%26pmechanix
A complex system that works is invariably found to have evolved from a simple system
that works.
- John Gaule
Read this topic online here:
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Subject: | Re: Harsh words about Rotax |
In a message dated 4/5/2009 1:35:32 P.M. Eastern Daylight Time,
donaho1@verizon.net writes:
I
have a 503 now that hasn`t given be any problems at all. Granted it only
has 60 hours on it but it has never skipped a beat. I put over 100 hours
on
a used 377 (total hours around 250) and it never had a problem
My friend, if you own a Rotax 503 you are one very intelligent & lucky
fellow! That motor will give you years & years of worry-free, enjoyable
flying. Run that sucker wide open! It doesn't care a hoot! We tow hang gliders
here in NW Florida using the 503. Mine has over 1,600 hours on it now with
C-box, Pennzoil & Amoco Super Premium & still going strong. Will be 12 years
old in September of this year. All with 3 tops. No major overhauls.
I'll leave you with my maxim for 503 owners...
IF IT AIN'T BROKE...DON'T FIX IT.
I've since added a new one...
GET OFF THE INTERNET & GO FLY! (which reminds me, I gotta' go fly!)
Bill Catalina
Ochlockonee Bay, Florida (on the coast south of Tallahassee)
**************Worried about job security? Check out the 5 safest jobs in a
recession.
(http://jobs.aol.com/gallery/growing-job-industries?ncid=emlcntuscare00000003)
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Subject: | Re: blade harmonics |
At 05:53 AM 4/8/09 -0500, you wrote:
>
Ted,
Have you considered trying a lower inertia propeller?
Jack B. Hart FF004
Winchester, IN
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Subject: | Re: blade harmonics |
Ted, Have you considered getting a prop spacer and gaining a little space
between the exhaust pipe opening and the prop blades?
Rick
On Wed, Apr 8, 2009 at 5:53 AM, Ted Cowan <tc1917@bellsouth.net> wrote:
>
> I still have the problem of harmonics with my blades on my slingshot. I
> have narrowed it back down to the blades. even though they have been sent
> back twice and super balanced by myself and lazer set, it is still there,
> buzz buzz buzz. drives you nuts. put a good anr set in my helmet and that
> makes it tolerable. friend has a new set of wd blades down in florida.
> gotta get down there and put them on my plane. if it makes it go away I am
> going after wd for new blades big time. this noise is awsome and sounds
> like I am flying a five o'clock charlie in korea. good luck. on two of my
> blades you can see the cloth and one has a smaller tip. told wd this and
> they didnt do anything but grind them down further. gotta prove it first.
> will think twice about my next set of blades. ted cowan, alabama, slingshot
> 912. p.s. if it werent for this harmonic problem I think I have the perfect
> flying machine, zoom zoom. at least for me.
>
>
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Subject: | Re: blade harmonics |
tc1917(at)bellsouth.net wrote:
> I still have the problem of harmonics with my blades on my slingshot. I
> have narrowed it back down to the blades. even though they have been sent
> back twice and super balanced by myself and lazer set, it is still there,
> buzz buzz buzz. drives you nuts. put a good anr set in my helmet and that
> makes it tolerable. friend has a new set of wd blades down in florida.
> gotta get down there and put them on my plane. if it makes it go away I am
> going after wd for new blades big time. this noise is awsome and sounds
> like I am flying a five o'clock charlie in korea. good luck. on two of my
> blades you can see the cloth and one has a smaller tip. told wd this and
> they didnt do anything but grind them down further. gotta prove it first.
> will think twice about my next set of blades. ted cowan, alabama, slingshot
> 912. p.s. if it werent for this harmonic problem I think I have the perfect
> flying machine, zoom zoom. at least for me.
Well I think I've found a possible culprit on my setup. There's a resonance between
the engine/mount and the frequency at which the blades vibrate fore and aft.
I discovered this yesterday by accident when I happened to tap one of the
blades, the entire top of the plane went "thoom" like a drum in concert with the
blade. And it sounds like that frequency is the frequency I'm hearing in the
cab....
Also yesterday I went over the whole butt end of the plane to make sure nothing
was loose or any problems with the mounts. No problemo.
In my case it's clearly not a problem with the prop itself - it's just an interaction
between it and this particular plane.
The only option with the WD looks like changing the diameter and I've BTDT on a
couple other planes (that means a few different sets of blades that all still
do the same thing). Going down in diameter is not acceptable as I need the climb
performance. And I can only go up another inch before I run out of safe clearance,
doubtful an inch is going to do it.
So it's time to get a little busier on this - next idea is a different prop type.
That's the only way I can see right now to change the blade resonance enough,
get the whole fundamental changed back there.
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=238319#238319
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Subject: | Re: Harsh words about Rotax |
FWIW,
Regarding the 503, I'm still building up trust in my 912 in hopes it measures up
to my 503's in terms of reliability ;).
But seriously, I've had more trouble with 4-strokes (not the 912) over the years
than I've had with any of my 503's. They usually rot away long before they wear
out or do something catastrophic.
Even at 4 large, the 503 is still the best deal in an aviation engine available
today.
The only 2-stroke rotax I"m not too fond of is the 582. It's a little less durable
than the aircooled motors.
And so far my 912 has been a good engine, but due to the far higher parts costs,
I'm significantly more paranoid about something breaking in it.
I hope it holds together as well as my 2 447's and can't remember how many 503's.....
(It is nice that the crank seals aren't leaking after a couple hundred
hours tho).....
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=238328#238328
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Hi,
hope this works!.
This should be 3 pics of me flying at the Victoria Falls in a
weightshift while in Zambia a couple of weeks ago. Quite exciting flying
around and through the spray which was so atomised that the cloud just
kept going up until it reached cloudbase.
Flew up the Zambesi at under 500 ft looking for hippos, crocs. etc with
no luck, but did find a herd of giraffes.
Cheers
Pat
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Subject: | Re: Harsh words about Rotax |
> Regarding the 503, I'm still building up trust in my 912 in hopes it
measures up to my 503's in terms of reliability ;).
>
> LS
If you fly it enough, I bet you'll gain a little confidence in the 912.
I've been extremely lucky to have had the opportunity to enjoy many hours,
over the last 25 years, in Kolb airplanes. During that time, the first
eight years flying my own two strokes, and 15 years flying my own 912
engines. In between crashes and rebuilds, I put significant time on Kolb
Factory two and four strokes, of which, I never had either type engine in a
factory airplane quit.
With 2,660.00 hours of flying my own 912 series engines, I never had a
problem with the engine, although I have had a couple problems with the
pilot getting lazy and not checking fuel after topping off from unreliable
sources, 1994 and 1998.
Based on the places my 912 engines have pushed me, I'd say I have quite a
bit of confidence in their reliability, and have also helped prove that
reliability.
As far as high price of parts for 912 engines, aren't all engine parts
expensive now? Also, I haven't had to buy parts for my 912 engines. The
basic engine is close to bullet proof and do not wear out major parts.
Accessories, yes, they must be replaced, like spark plugs, oil filters, oil,
carb parts (probably weakest link of the 912), spark plug connectors, etc.
However, it takes a lot of flying to go through these parts like some of us
have done over the years.
I think getting out there and grinding out hour after hour in a short period
of time, 232 hours in 41 total days for example, and many other high flying
hour, short number of day trips, is an excellent example of the 912 engine's
reliability.
Don't think I'd bite off extremely long cross country flights, flying over
the inhospitible terrain, with a two stroke of any make. In fact, there is
no way I would have made the 2004 flight to and in Alaska with one. Not
that I do not like them, but I know the difference between two and four.
As far as 4 strokes rotting away from non-use, I don't think so. I have
antique tractors that are much older than me, that have sat and waited most
of their life, still running like the day they were built. ;-) I might
add, my 912ULS has not seen much use since last summer, but it will get out
there and run like it should today, if the rats haven't eaten it since I
last checked.
john h
mkIII
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Subject: | Re: Victoria Falls |
Patrick:
Do you fly the trike from the back seat?
Notice a nice reliable 912 powering the trike.
Nice photos of the Falls.
I envy your travels. I have never been to Africa, but would love to do
some serious flying there, if I could afford the bill.
john h
mkIII
This should be 3 pics of me flying at the Victoria Falls in a
weightshift while in Zambia a couple of weeks ago. Quite exciting flying
around and through the spray which was so atomised that the cloud just
kept going up until it reached cloudbase.
Flew up the Zambesi at under 500 ft looking for hippos, crocs. etc
with no luck, but did find a herd of giraffes.
Cheers
Pat
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Subject: | Re: blade harmonics |
At 11:22 AM 4/8/2009, lucien wrote:
>Well I think I've found a possible culprit on my setup. There's a
>resonance between the engine/mount and the frequency at which the blades
>vibrate fore and aft....it's clearly not a problem with the prop itself -
>it's just an interaction between it and this particular plane.
If that's the case, going to a slightly stiffer or softer engine mount
rubber isolator might help, change the resonant frequency.
If it's a pulsating mmmmMMMmmmmMMMmmmmMMMmmmm, though, an exhaust/prop
interaction seems the more likely culprit. Comparing the frequency of the
cycle with the engine and prop rpm's may help to narrow it down.
-Dana
--
Welcome to the Federal Bureau for Reducing Bureaucracy!
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Subject: | Re: Victoria Falls |
- Pat- Nice photos!- Thank you.
-
-------------------------
----------- Bill Sullivan
-------------------------
----------- Windsor Locks, Ct.
do not archive
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Subject: | Re: Harsh words about Rotax |
John Hauck wrote:
>
>
> As far as high price of parts for 912 engines, aren't all engine parts
> expensive now? Also, I haven't had to buy parts for my 912 engines. The
> basic engine is close to bullet proof and do not wear out major parts.
> Accessories, yes, they must be replaced, like spark plugs, oil filters, oil,
> carb parts (probably weakest link of the 912), spark plug connectors, etc.
> However, it takes a lot of flying to go through these parts like some of us
> have done over the years.
> john h
>
> mkIII
Actually, the value of the 912 overall is fixing to go up as the official TBO is
being raised to 2000 hours, that according to Ronnie Smith IIRC.
And actually, for 100hp, with a 2000 hour TBO the 912ULS is probably going to be
the highest bang/buck available in that power range if it isn't already.
And that TBO is pessimistic from what I've heard of the engines in the field, particularly
at flight schools, where they go for as long as 3000 hours.
I try to run mine up to operating temperature at least once every 2 weeks (and
usually every week) to keep any possibility of corrosion away. Even if it's a
trip around the pattern in the holes between the 40knot winds.....
So far so good on mine at a little over 300 hours.....
LS
--------
LS
Titan II SS
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Subject: | Re: blade harmonics |
Dana wrote:
>
> If that's the case, going to a slightly stiffer or softer engine mount
> rubber isolator might help, change the resonant frequency.
>
> If it's a pulsating mmmmMMMmmmmMMMmmmmMMMmmmm, though, an exhaust/prop
> interaction seems the more likely culprit. Comparing the frequency of the
> cycle with the engine and prop rpm's may help to narrow it down.
>
> -Dana
>
> --
> Welcome to the Federal Bureau for Reducing Bureaucracy!
Yeah it's a pulsating thing like you describe, it could very well be aggravated
by exhaust pulses. I do have a 3" extension installed tho and the blades are
a good ways away from the exhaust outlet.
The lower frequency doesn't seem to correspond to anything that I can tell, though
a wild guess is it coincides with the alignment of the crank and prop as it
rotates around the 2.43 gear ratio. this _does_ change in frequency with rpm
so that could be it.
The higher frequency hum seems to be a constant frequency and, I think I repeat
think..., it's the same frequency as the "thoom" I get when tapping the blade
on the ground. That's probably the resonance of the blades/engine/mount etc.
Next I go back up (if we ever get flyable weather again) I'm going to listen to
it some more.
No idea if different compliance mounts are available on my mount.... I'll try to
research that and see.....
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=238347#238347
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Subject: | Re: blade harmonics |
LS,
Ran into something like this years ago when I still had a Kolb, try to
direct your exhaust up down or to the side if you haven't already done so,
also, unbolt the prop hub and rotating it by one bolt hole and see if it
makes a difference
V/R,
Dennis from MD.
----- Original Message -----
From: "lucien" <lstavenhagen@hotmail.com>
Sent: Wednesday, April 08, 2009 1:27 PM
Subject: Kolb-List: Re: blade harmonics
>
>
> Dana wrote:
>>
>> If that's the case, going to a slightly stiffer or softer engine mount
>> rubber isolator might help, change the resonant frequency.
>>
>> If it's a pulsating mmmmMMMmmmmMMMmmmmMMMmmmm, though, an exhaust/prop
>> interaction seems the more likely culprit. Comparing the frequency of
>> the
>> cycle with the engine and prop rpm's may help to narrow it down.
>>
>> -Dana
>>
>> --
>> Welcome to the Federal Bureau for Reducing Bureaucracy!
>
>
> Yeah it's a pulsating thing like you describe, it could very well be
> aggravated by exhaust pulses. I do have a 3" extension installed tho and
> the blades are a good ways away from the exhaust outlet.
>
> The lower frequency doesn't seem to correspond to anything that I can
> tell, though a wild guess is it coincides with the alignment of the crank
> and prop as it rotates around the 2.43 gear ratio. this _does_ change in
> frequency with rpm so that could be it.
>
> The higher frequency hum seems to be a constant frequency and, I think I
> repeat think..., it's the same frequency as the "thoom" I get when tapping
> the blade on the ground. That's probably the resonance of the
> blades/engine/mount etc.
>
> Next I go back up (if we ever get flyable weather again) I'm going to
> listen to it some more.
>
> No idea if different compliance mounts are available on my mount.... I'll
> try to research that and see.....
>
> LS
>
> --------
> LS
> Titan II SS
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=238347#238347
>
>
>
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Subject: | Re: blade harmonics |
djwatson(at)olg.com wrote:
> LS,
>
> Ran into something like this years ago when I still had a Kolb, try to
> direct your exhaust up down or to the side if you haven't already done so,
> also, unbolt the prop hub and rotating it by one bolt hole and see if it
> makes a difference
>
> V/R,
> Dennis from MD.
>
>
> ---
Oh yeah, this may be possible with the exhaust now that I thinka bout it.
Ironically, my FS II had this exact same prop (WD 68" taper).... completely different
airframe and motor but it was totally silky smooth with no vibration whatsoever.....
just that healthy 503 howl.... ;)
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=238352#238352
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Subject: | Re: Victoria Falls |
I am thinking that he should adopt me and take me along on some of these
trips.
Larry C
----- Original Message -----
From: John Hauck
To: kolb-list@matronics.com
Sent: Wednesday, April 08, 2009 10:39 AM
Subject: Re: Kolb-List: Victoria Falls
Patrick:
Do you fly the trike from the back seat?
Notice a nice reliable 912 powering the trike.
Nice photos of the Falls.
I envy your travels. I have never been to Africa, but would love to
do some serious flying there, if I could afford the bill.
john h
mkIII
This should be 3 pics of me flying at the Victoria Falls in a
weightshift while in Zambia a couple of weeks ago. Quite exciting flying
around and through the spray which was so atomised that the cloud just
kept going up until it reached cloudbase.
Flew up the Zambesi at under 500 ft looking for hippos, crocs. etc
with no luck, but did find a herd of giraffes.
Cheers
Pat
-------------------------------------------------------------------------
-----
Checked by AVG - www.avg.com
04/08/09 05:53:00
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Subject: | Re: blade harmonics |
> Oh yeah, this may be possible with the exhaust now that I thinka bout it.
>
> Ironically, my FS II had this exact same prop (WD 68" taper)....
> completely different airframe and motor but it was totally silky smooth
> with no vibration whatsoever..... just that healthy 503 howl.... ;)
>
> LS
Never heard of a Titan Exhaust/912 prop noise/vibration/harmonic problem. I
experimented with the outlets on my Titan left, right, and straight up. No
problems.
I know of three Kolbs that flew with Rick Thomasson's exhaust designed for
the Pulsar. All three suffered from a terrible rattling/noisy exhaust beat
caused by the retreating blade hitting the downward aimed exhaust pipe on
the right exhaust system. I knew I was going to have that problem so I cut
the outlets perpendicular to the ground and eliminated the noise. There was
no vibration or harmonic associated with this system.
I know of three airplanes that have had this similar problem: a Titan with
912, a SS with 912, and a SS with 582. The SS with 582, with 3 blade warp
drive, was caused by loose fabric on the inboard rear corner of the right
wing. I don't know what Ted Cowan's problem is, probably disturbed air flow
and the way it is hitting the prop blade, or blades. Items mounted in front
of the prop all contribute to the way air flows to and through it. Ever
play with an electric fan? Set one up, turn it on high, then start messing
with the air flow to the blades. You'll get all kinds of very unusal
complaints coming from those blades. Why wouldn't a pusher respond
similarly?
john h
mkIII
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Subject: | Re: blade harmonics |
FWIW, I get a similar pulsing hum at cruise rpm on my UltraStar.
-Dana
--
I hadda I LOVE WINDOWS sticker on my car...but it crashed.
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Subject: | Re: 912 ULS starter |
I don't know where I got the "typical draw while cranking the 912ul is about 75
amps." from but it was way off for our 912UL per testing this morning.
Using clamp on ammeter I got ~13 amps current during cranking our 912UL at about
45-50F OAT.
I hope this figure helps with at least a ballpark guestimate.
--------
Thom Riddle
Buffalo, NY
http://riddletr.googlepages.com/sportpilot-cfi
http://riddletr.googlepages.com/a%26pmechanix
A complex system that works is invariably found to have evolved from a simple system
that works.
- John Gaule
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=238378#238378
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Anyone have an idea wich would be the more satisfying , Great plains ,
Revmaster, or some other?
Frank Goodnight
Firestar 2
On Apr 8, 2009, at 4:38 PM, Thom Riddle wrote:
>
> I don't know where I got the "typical draw while cranking the 912ul
> is about 75 amps." from but it was way off for our 912UL per testing
> this morning.
>
> Using clamp on ammeter I got ~13 amps current during cranking our
> 912UL at about 45-50F OAT.
>
> I hope this figure helps with at least a ballpark guestimate.
>
> --------
> Thom Riddle
> Buffalo, NY
> http://riddletr.googlepages.com/sportpilot-cfi
> http://riddletr.googlepages.com/a%26pmechanix
>
> A complex system that works is invariably found to have evolved from
> a simple system that works.
> - John Gaule
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=238378#238378
>
>
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Subject: | now an actual Kolb question |
What is the status of the new mark III? I.e. here it is with I believe John H.
flying it:
http://www.youtube.com/watch?v=T6LjOighew8
Just curious if testing is complete and TNK is selling it or did they abandon it
or ?
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=238384#238384
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Subject: | Re: Back to gascolators |
** >to be a vacuum fitting on the top. Before I install it I need to know the
>options/requirements re: the vacuum line? I.e., can it be plugged or is
>it's use necessary for the gascolator to function properly?
Vacuum doesn't seem likely... are you sure it's not a primer connection?
-Dana
I guarantee you I'm not sure of anything. Following is a web address and the second
entry down has
a picture of the same setup. Maybe that would give you a hint. I asked the mechanic
at Queen City,
where I've been flying out of and he didn't know. He's worked on military jets
for years and
now is the first he's worked GA, so the setup may be peculiar to home builts...
**
http://www.vansairforce.com/community/showthread.php?t=5513
Dave
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Subject: | Re: Victoria Falls |
Pat -
The shot of you over the Falls is incredible. You ought to make a banner and put
it up over your house! :>)
Arty
www.LessonsFromTheEdge.com/uladventure2009.htm
"Life's a daring adventure or nothing" Helen Keller
"I refuse to tip toe through life just to arrive safely at death."
--- On Wed, 4/8/09, pj.ladd <pj.ladd@btinternet.com> wrote:
> From: pj.ladd <pj.ladd@btinternet.com>
> Subject: Kolb-List: Victoria Falls
> To: kolb-list@matronics.com
> Date: Wednesday, April 8, 2009, 9:15 AM
>
>
>
>
>
>
>
> Hi,
> hope this
> works!.
>
> This should be 3 pics of
> me flying at the Victoria
> Falls in a weightshift while in Zambia a couple of weeks
> ago. Quite exciting
> flying around and through the spray which was so atomised
> that the cloud just
> kept going up until it reached cloudbase.
> Flew up the Zambesi at
> under 500 ft looking for
> hippos, crocs. etc with no luck, but did find a herd of
> giraffes.
>
> Cheers
>
> Pat
>
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Subject: | Re: now an actual Kolb question |
> What is the status of the new mark III? I.e. here it is with I believe
John H. flying it:
>
> http://www.youtube.com/watch?v=T6LjOighew8
>
> Just curious if testing is complete and TNK is selling it or did they
> abandon it or ?
>
> LS
That clip was shot during the Dealers Showcase at Sun and Fun 2008. My
buddy Dick Rahill missed the pilots briefing and they would not let him fly.
Normally, we would fly the FSII and MKIII at the same time during the
demonstration. For many years, it was me, Dick, and Dennis Souder, doing
the Showcase.
It was extremely windy, gusty, and turbulent, during this flight. Those of
you who have flown Lakeland during S&F will know what I mean. However, it
is not readily noticeable in the clip.
I spent three weeks in London testing the MKIIIx March 2008. Testing was
completed and the 40 hours flown off. Weather was cold and wet, along with
wind, during that period.
I think the MKIIIx is still for sale. It has been featured on Ebay, but did
not make the minimum.
It is a good flying airplane, has full flaps, ailerons operated by Morris
Cables, nice comfy fiberglass seats molded into one piece.
I'm not ready to trade my mkIII for one, but the X is a good airplane.
john h
mkIII
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Subject: | Re: now an actual Kolb question |
Its a deal !!! Could be yours for a very good price...Call
Travis..!! :-) Herb
At 05:26 PM 4/8/2009, you wrote:
>
>What is the status of the new mark III? I.e. here it is with I
>believe John H. flying it:
>
>http://www.youtube.com/watch?v=T6LjOighew8
>
>Just curious if testing is complete and TNK is selling it or did
>they abandon it or ?
>
>LS
>
>--------
>LS
>Titan II SS
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=238384#238384
>
>
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Subject: | Re: now an actual Kolb question |
> Its a deal !!! Could be yours for a very good price...Call
> Travis..!! :-) Herb
It sure is.
Forgot to mention it is powered with a new 912ULS with Titan SS exhaust
system, Warp Drive 3 blade fast taper prop and no wierd vibrations or
harmonics.
john h
mkIII
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Subject: | Back to gascolators |
Dave=2C
That port you refer to a 1/8" NPT hole=2C isn't it? If it is=2C it is th
e primer port. If you do not need a primer=2C you don't need the port. Pl
ug it.
Gascolaters have such a wide range of engines they're expected to work wi
th. It's easier to machine the hole=2C and thread it=2C than try to create
two types of gascolators=2C those with the hole=2C and those without.
If you go to www.aircraftspruce.com=2C and read the descriptions of the g
ascolators they offer=2C you'll see the primer port mentioned.
Mike Welch
MkIII
From: undoctor@ptd.net
Subject: Re: Kolb-List: Back to gascolators
>to be a vacuum fitting on the top. Before I install it I need to know th
e
>options/requirements re: the vacuum line? I.e.=2C can it be plugged
or is
>it's use necessary for the gascolator to function properly?
Vacuum doesn't seem likely... are you sure it's not a primer connecti
on?
-Dana
I guarantee you I'm not sure of anything. Following is a web address and t
he second entry down has
a picture of the same setup. Maybe that would give you a hint. I asked th
e mechanic at Queen City=2C
where I've been flying out of and he didn't know. He's worked on military
jets for years and
now is the first he's worked GA=2C so the setup may be peculiar to home bui
lts...
http://www.vansairforce.com/community/showthread.php?t=5513
Dave
_________________________________________________________________
Windows Live=99: Keep your life in sync.
http://windowslive.com/explore?ocid=TXT_TAGLM_WL_allup_1a_explore_042009
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Subject: | Re: Back to gascolators |
Mine also has the thrid port on top, its the primer port.. Plug it !!!
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=238419#238419
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Subject: | Re: Back to gascolators |
From: Dave Kulp <undoctor@ptd.net>
Dave,
It is a primer tap. See:
http://www.andair.co.uk/pdfs/GAS01.pdf
Jack B. Hart FF004
Winchester, IN
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Subject: | Mixture control... |
Jack
See your post and am reminded...how is the mixture control
coming...? IMHO...not only does it promise a bit better fuel burn
through better mixture control...but also may allow us to dial out
the egt peak as we drop below 5k rpms? Perhaps make the engine less
susceptible to seizures...? Herb
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Subject: | Re: V.W.conversion |
Frank
"Most satisfying" ??
You get the most thrust by no small margin with a reduction drive VW engine.
Revmaster, Happy(sp), AreoVee, and GP direct drive engines will not except
the Valley redrive so they would not be very "satisfying".
Great Plains redrive engines and properly built big dune buggy engines will
except the Valley redrive. They give very "satisfying" thrust in Kolb
airplanes.
A big dune buggy engine built super strong with a mild cam and valve springs
and a few aircraft conversion parts would be less expensive and still be
powerful and reliable so that would be and is very "satisfying" for me.
There are some gear reduction drives that may be suitable for VWs that might
fit work on direct drive VW aircraft conversion engines but????
Rick Neilsen
Redrive VW powered MKIIIC
----- Original Message -----
From: "frank.goodnight" <frank.goodnight@att.net>
Sent: Wednesday, April 08, 2009 5:53 PM
Subject: Kolb-List: V.W.conversion
> <frank.goodnight@att.net>
>
> Anyone have an idea wich would be the more satisfying , Great plains ,
> Revmaster, or some other?
> Frank Goodnight
> Firestar 2
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Subject: | Re: now an actual Kolb question |
John Hauck wrote:
>
>
> It sure is.
>
> Forgot to mention it is powered with a new 912ULS with Titan SS exhaust
> system, Warp Drive 3 blade fast taper prop and no wierd vibrations or
> harmonics.
>
> john h
> mkIII
lol..... There's actually a video that Travis made doing a walkaround of what looks
like that plane. I watched it 3 times straight in a row at work today (when
I was supposed to be working). I did notice the 4" saber extension and my prop
on the motor.....
I love my titan but I've always been a kolb fan and a fanatic after my FS II (which
I still regret having had to sell). So I've been curious how the new Mark
III had come out. Wonder if any of the new style have been sold and are being
built?
I watched the video of the firefly as well, which looks like it probably was flown
on the same day. The gusty/thermally weather was definitely evident in that
video........
LS
--------
LS
Titan II SS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=238431#238431
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Subject: | Re: now an actual Kolb question |
> I watched the video of the firefly as well, which looks like it probably
was flown on the same day. The gusty/thermally weather was definitely
evident in that video........
>
> LS
The Fire Fly video was made several years ago at Lakeland. It was a
beautiful airplane built and painted by Bryan Milborn.
I was also fortunate to be the demo pilot for this FF. I had forgotten how
windy and rough the air was that year. The video clearly demonstrates I had
my hands full, but the little FF performed like a champ that it is.
A young lady bought the FF for her 92 year old adventurer grand father at
the show. I never got to fly it again, nor did I ever see it again. I did
hear that it was neglected, not flown, and considerable damage was done by
children playing in it. It was a fantastic show plane and well as a flyer.
http://www.youtube.com/watch?v=9SFhiQRlGwA&feature=related
john h
mkIII
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Subject: | Re: V.W.conversion |
See Valley Engineering - not sure if they offer full VW engine but
they have a nice redrive for the VW engine - the difference of engine
with one is quite noticeable if you seen a before the redrive and
then after. Wow!
jerb
At 04:53 PM 4/8/2009, you wrote:
>
>Anyone have an idea wich would be the more satisfying , Great plains ,
>Revmaster, or some other?
>Frank Goodnight
>Firestar 2
>On Apr 8, 2009, at 4:38 PM, Thom Riddle wrote:
>
>>
>>I don't know where I got the "typical draw while cranking the 912ul
>>is about 75 amps." from but it was way off for our 912UL per testing
>>this morning.
>>
>>Using clamp on ammeter I got ~13 amps current during cranking our
>>912UL at about 45-50F OAT.
>>
>>I hope this figure helps with at least a ballpark guestimate.
>>
>>--------
>>Thom Riddle
>>Buffalo, NY
>>http://riddletr.googlepages.com/sportpilot-cfi
>>http://riddletr.googlepages.com/a%26pmechanix
>>
>>A complex system that works is invariably found to have evolved from
>>a simple system that works.
>> - John Gaule
>>
>>
>>
>>
>>Read this topic online here:
>>
>>http://forums.matronics.com/viewtopic.php?p=238378#238378
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
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Subject: | Re: 912 ULS starter |
Using clamp on ammeter I got ~13 amps current during cranking our 912UL at
about 45-50F OAT.
>>>>>>>>>>>>..
I have never seen a clamp on dc amp meter.
Boyd
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