Today's Message Index:
----------------------
1. 01:41 AM - Test plse ignore (lucien stavenhagen)
2. 03:48 AM - Re: ANR (John Jung)
3. 04:00 AM - Re: Engine Noise and Radio's (John Jung)
4. 04:15 AM - Prop noise (John Jung)
5. 06:12 AM - Re: Engine Noise and Radio's (Cat36Fly@aol.com)
6. 06:37 AM - Re: Engine Noise and Radio's (John Hauck)
7. 06:56 AM - Re: Engine Noise and Radio's (Richard Pike)
8. 07:57 AM - Re: Engine Noise and Radio's (roger lee)
9. 09:35 AM - Re: DNA (jerb)
10. 09:39 AM - The List of Contributors Coming Soon - Make Sure You're Listed! (Matt Dralle)
11. 09:52 AM - Re: Re: Firefly rigging and trim (jerb)
12. 10:29 AM - Re: Re: Firefly rigging and trim (jerb)
13. 10:41 AM - Re: Prop noise (jerb)
14. 10:52 AM - Re: DNA (pat ladd)
15. 12:19 PM - Re: Prop noise (DAquaNut@aol.com)
16. 12:44 PM - Re: Re: Firefly rigging and trim (DAquaNut@aol.com)
17. 01:18 PM - Re: Engine Noise and Radio's (George T. Alexander, Jr.)
18. 02:17 PM - Ebay (bryan green)
19. 02:30 PM - Re: Engine Noise and Radio's (Jack B. Hart)
20. 03:28 PM - Re: Prop noise (Charlie England)
21. 03:46 PM - Re: Prop noise (J.D. Stewart)
22. 06:16 PM - Mounting ELT (Mike Pierzina)
Message 1
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| Subject: | Test plse ignore |
--> Kolb-List message posted by: "lucien stavenhagen" <lstavenhagen@hotmail.com>
test
LS
Message 2
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--> Kolb-List message posted by: John Jung <jrjungjr@yahoo.com>
Lanny and Group,
When I used a Comtronics set, the mic would pick up the sound of the
engine and put it through the speakers, making it all but impossible to
communicate. I switched to a DRE intercom and that problem went away.
It is important to have a unit with a good squelch.
John Jung
Firestar II N6163J
Surprise, AZ
On Nov 26, 2005, at 12:56 AM, Kolb-List Digest Server wrote:
> --> Kolb-List message posted by: Lanny Fetterman <donaho@csrlink.net>
>
> Happy Thanksgiving to all, Where do you buy an ANR kit, and do you
> think it
will work with a Comtronics dual-com? My set up works well,
however, there is always the drone of the engine coming through the
earphones.
Message 3
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| Subject: | Re: Engine Noise and Radio's |
--> Kolb-List message posted by: John Jung <jrjungjr@yahoo.com>
Larry and Group,
I use the DRE 6000 and I am really happy with it.
But here something really inexpensive that can make a significant
improvement with any headset: Foam ear plugs. They really add to the
noise reduction and the headset volume can be turned up so that hearing
voices is no problem. I like the Remington brand best. They are soft
and comfortable. Some others are very dense and actually work too well.
John Jung
Firestar II N6163J
Surprise, AZ
On Nov 26, 2005, at 12:56 AM, Kolb-List Digest Server wrote:
> Has anyone found a good headset and mic that works with these noisy
> engines
> we use?
Message 4
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--> Kolb-List message posted by: John Jung <jrjungjr@yahoo.com>
Group,
Recently someone suggested that some of the prop noise for large
diameter props was coming from the prop tips as they passed close to
the boom tube. Whoever suggested that was "right on". For the last year
or two, I had my engine raised up about an inch. It was raised so that
I could fold the wings with a two blade IVO in the horizontal position.
When I put the engine back on after my recent de-carbon, I put it back
in the normal position. On the first flight, I noticed a significant
increase in prop noise. The gap between the prop tip and the boom tube
is now about an inch. Before it was close to two inches. So, now I have
to decide if I should put the engine back up, or cut the 68" prop down
to 66", or both. Ideas?
John Jung
Firestar II N6163J
Surprise, AZ
Message 5
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| Subject: | Re: Engine Noise and Radio's |
--> Kolb-List message posted by: Cat36Fly@aol.com
Thanks to all who have (and will) responded
. Good input on a common problem most of us share.
I am as concerned with the TX as well as the RX ability of a unit because of
the backround noise (as some have mentioned). Last week while talking to
Dover Approach (Checking X-ponder operation) The controller had to ask me to
repeat three times and give me a code twice. We finally connected when I pulled
the throttle back. Not what I want for normal operation.
Larry Tasker
MKlllx 582
Message 6
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| Subject: | Re: Engine Noise and Radio's |
--> Kolb-List message posted by: "John Hauck" <jhauck@elmore.rr.com>
| repeat three times and give me a code twice. .
|
| Larry Tasker
Larry T/Gang:
A large capacitor, about 22,000 mf, will do wonders for reducing rf
noise on the tx and rx sides of your radio. Install it on the 12DCV
side of the regulator/rectifier, close to the reg/rec, insuring you
have a good ground. The capacitor will have a + and - connector. It
will soak up a lot of extraneous noise.
Also, the headset you use has a lot to do with radio performance. I
complained for a year that my buddies radios were poorly transmitting.
Had a hard time hearing and understanding them. I had used David
Clark head sets, H-10-40, for years, but it was the DC sets that were
going belly up, not receiving or transmitting well. Was also getting
a squeal when transmitting. Blamed it on the little ICOM A3 radio.
Bought a new radio and had the same problem. May 2005, bought the
DRE6000 ENR headset and my radio and my buddies' radios problems went
away. It was all headset.
Take care,
john h
Message 7
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| Subject: | Re: Engine Noise and Radio's |
--> Kolb-List message posted by: Richard Pike <richard@bcchapel.org>
I have found reducing power to be the most consistently successful way of
talking to ATC. You don't need a huge reduction, 4,800 rpm will usually do it.
Something no one else has mentioned as a factor in engine noise is that
there is normally no sound insulation between the engine and the cockpit.
Several people have commented that flying in my MKIII is quieter than the
usual Kolb, and we finally figured out that it is because the main gas tank
is located in the gap seal. Having a dense, thick-walled fiberglass gas
tank between me and the engine is a big factor in reducing engine noise.
That, plus the MKIII has a contiguous fabric insert that spans the full
upper fuselage between the wings.
For those flying MKIII's, how about installing a lightweight foam
sound-absorbing insert atop the fabric spanning the gap seal? And blocking
off any holes or openings within the gap seal that open into the cockpit area?
Richard Pike
MKIII N420P (420ldPoops)
At 09:12 AM 11/26/2005 -0500, you wrote:
>--> Kolb-List message posted by: Cat36Fly@aol.com
>
>Thanks to all who have (and will) responded
>
>. Good input on a common problem most of us share.
>
>I am as concerned with the TX as well as the RX ability of a unit because of
>the backround noise (as some have mentioned). Last week while talking to
>Dover Approach (Checking X-ponder operation) The controller had to ask me to
>repeat three times and give me a code twice. We finally connected when I
>pulled
>the throttle back. Not what I want for normal operation.
>
>Larry Tasker
>MKlllx 582
>
>
Message 8
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| Subject: | Re: Engine Noise and Radio's |
--> Kolb-List message posted by: roger lee <ssadiver1@yahoo.com>
Hi Richard,
I hate to say it, but sometimes we have to invest more money in some things than
we want to. In this case a good ANR headset is worth the money. Usually, but
not always, a $250 set is not as good as a $450-$500 set. My Pilot series PA17-79
DN XL works very well in all the noise. It cost approximately $450. I bought
it for use in my Helicopter because it is good for higher ambient noise
areas. Several of the helicopter headsets have better ratings because of noise.
(not all) I have no problem hearing or transmitting in my Mark III. I am hard
of hearing and I like the fact also that I can turn the radio to everyone elses
comfort and turn the volume up for me. I would highly recommend this headset.
Thanks for all the help on this site,
Roger Lee
Richard Pike <richard@bcchapel.org> wrote:
--> Kolb-List message posted by: Richard Pike
I have found reducing power to be the most consistently successful way of
talking to ATC. You don't need a huge reduction, 4,800 rpm will usually do it.
Something no one else has mentioned as a factor in engine noise is that
there is normally no sound insulation between the engine and the cockpit.
Several people have commented that flying in my MKIII is quieter than the
usual Kolb, and we finally figured out that it is because the main gas tank
is located in the gap seal. Having a dense, thick-walled fiberglass gas
tank between me and the engine is a big factor in reducing engine noise.
That, plus the MKIII has a contiguous fabric insert that spans the full
upper fuselage between the wings.
For those flying MKIII's, how about installing a lightweight foam
sound-absorbing insert atop the fabric spanning the gap seal? And blocking
off any holes or openings within the gap seal that open into the cockpit area?
Richard Pike
MKIII N420P (420ldPoops)
At 09:12 AM 11/26/2005 -0500, you wrote:
>--> Kolb-List message posted by: Cat36Fly@aol.com
>
>Thanks to all who have (and will) responded
>
>. Good input on a common problem most of us share.
>
>I am as concerned with the TX as well as the RX ability of a unit because of
>the backround noise (as some have mentioned). Last week while talking to
>Dover Approach (Checking X-ponder operation) The controller had to ask me to
>repeat three times and give me a code twice. We finally connected when I
>pulled
>the throttle back. Not what I want for normal operation.
>
>Larry Tasker
>MKlllx 582
>
>
---------------------------------
Message 9
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--> Kolb-List message posted by: jerb <ulflyer@verizon.net>
Pat,
I've been a list member for years, never thought that the extra
tidbits being archived as being a problem other than taking some
extra disk space on Matt's disk bank. I find the accuracy of the
topic subject field more important than anything. Some people who
contribute good info would never or would forget to type archive on
their post, that info would then be lost. For the most part I can
live with and prefer sifting through a little extra stuff than have
an empty tool box. I also archive all the list messages myself for
that reason. By contributing to Matt's fund raiser I also get his
archives of the year for several list I subscribe on CD. That alone
is worth some thing. Those that don't support the operation of the
list shouldn't feel bad if things become unavailable.
jerb
At 04:53 AM 11/22/2005, you wrote:
>--> Kolb-List message posted by: "pat ladd" <pj.ladd@btinternet.com>
>
>This list is for things about flying and building Kolb aircraft. If you only
>post things related to that you would not have to type do not archive that
>often.>>
>
>Hi there,
>
>this question comes up in one form or another on most unmoderated lists.
>What topics are considered to be OK.?
>I have always taken the view that the list (any list) is like a pub.
>Everyone in the pub. will be talking generally about Kolbs but one group
>will be deep in an arguement about carburettor settings and another will be
>swapping photos of their planes. Both are valid. If you are not enthusiastic
>about either wander on down the bar and someone will be talking about
>something in which you have an interest.
>
>Please dont try to restrict topics too strictly. If that happened we should
>.lose all sorts of interesting posts. What the sunset looked like is just as
>important as the revs and MAUW.
>
>I would suggest that the revs and MAUW rather than the sunset might go into
>the archive but I could be wrong.
>
>In any case a system that defaults to `Do Not Archive` rather than the
>other way round I would consider preferable because a conscious effort would
>have to made to archive something. But is the amount of stuff archived
>really so great that specific info cannot be found? I doubt it.
>
>Matte does a good job in letting these little arguments just blow themselves
>out, as they always do after a while. If it aint broke, don`t fix it.
>
>Pat
>
>
>--
>Checked by AVG Free Edition.
>
>
Message 10
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| Subject: | The List of Contributors Coming Soon - Make Sure You're Listed! |
--> Kolb-List message posted by: Matt Dralle <dralle@matronics.com>
Hi Listers,
The List of Contributors (LOC) is just around the corner! On
December 1st I post a list of everyone that so generously made a
Contribution to support the Lists. Its sort of my way of publicly
thanking everyone that took a minute to show their appreciation for the Lists.
Won't you take a moment and assure that your name is on that List of
Contributors? As a number of people have pointed out, the List seems
at least, if not a whole lot more, as valuable as a
building/flying/recreating tool as a typical your magazine
subscription. We won't even talk about a newsstand price... :-)
Won't you take minute and assure that your name is on the upcoming
LOC? Tell others that you appreciate the Lists. Making a
Contribution to support the Lists is fast and easy using your Visa or
M/C on the SSL Secure Web Site:
http://www.matronics.com/contribution
or by popping a personal check in the mail to:
Matronics Email Lists
c/o Matt Dralle
PO Box 347
Livermore CA 94551-0347
I would like to thank everyone that has so generously made a
Contribution thus far in this year's List Fund Raiser! Remember that
its YOUR support that keeps these Lists going and improving! Don't
forget to include a little comment about how the Lists have helped
you! I love to feel the love... :-)
Best regards,
Matt Dralle
Email List Administrator
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
do not archive
Message 11
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| Subject: | Re: Firefly rigging and trim |
--> Kolb-List message posted by: jerb <ulflyer@verizon.net>
Ed, and all,
If your going to do any taxiing at all, make sure you seat belt is
fastened and the plane is ready to fly (preflight and adequate fuel
on board for a hour or so) just in case it gets air bourne. Heard
and see the results of to many panic situations where the plane get
off the ground. The pilot panics because he's not ready to fly and
splats it back down on the runway and busts the airplane. Be ready
to fly and if it gets in the air fly the airplane - circle until you
settle down and then set up for a nice easy approach to touch down.
jerb
At 09:05 PM 11/23/2005, you wrote:
>--> Kolb-List message posted by: DAquaNut@aol.com
>
>
>Group,
>
> I have been doing fast taxis in my Firefly. I have had my left wing to
>lift off twice at about 40 mph. Is this normal for a Kolb that is adjusted
>properly? Is this a result of the prop blast on the tail surface?
>
> Ed (In Houston)
>
>
Message 12
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| Subject: | Re: Firefly rigging and trim |
--> Kolb-List message posted by: jerb <ulflyer@verizon.net>
Ed,
Some thing you might want to consider is changing out the 400x6 Shin
tires to 600x6. Guy Morgan who bought our FF made a post in the past
about changing out the tires and it improving high the speed handling
characteristics claiming it settled it down. Reference the message below:
From: "Guy Morgan" <morganguy@hotmail.com>
Subject: RE: Kolb-List: Wheels
jerb :-)
At 07:54 AM 11/24/2005, you wrote:
>--> Kolb-List message posted by: "Beauford" <beauford@tampabay.rr.com>
>
>Ed...
>I believe Brother Gherardini is right on target with his advice.... My Fly
>is good and ready to
>launch at about 40... Those Chinese wheel bearings aren't built for long
>drives in the country...
>
>You are playing around at precisely the most dicey point in the transition
>between dirt and sky... your objective ought to be to get through it as
>quickly as possible, whether coming or going.... not to play there until you
>run into a hole or
>a stray gust gets you...
>
>Go fly.
>
>worth what ye paid fer it...
>Beauford of Brandon
>FF #076
>do not archive
>----- Original Message -----
>From: "Don Gherardini" <donghe@one-eleven.net>
>To: <kolb-list@matronics.com>
>Subject: Re: Kolb-List: Re: Firefly rigging and trim
>
>
> > --> Kolb-List message posted by: "Don Gherardini" <donghe@one-eleven.net>
> >
> > Ed... Sounds about right to me...and I'll tell ya pard...keep practicing
> > those fast taxis and you are gonna bend something...that FireFly was meant
> > to fly...not drive! > Don Gherardini
> > FireFly 098
> > http://www.geocities.com/dagger369th/my_firefly.htm
> >
>
> > _->
> >
> >
>
>
Message 13
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--> Kolb-List message posted by: jerb <ulflyer@verizon.net>
When I was at Oshkosh back in 95 looking at the FireFly, Dennis
commented about the noise being generated by the prop passing the
trailing edge of the wing, they added a spacer to increase the
clearance and found it reduced the noise also. John Hack might know
more about this.
jerb
At 06:15 AM 11/26/2005, you wrote:
>--> Kolb-List message posted by: John Jung <jrjungjr@yahoo.com>
>
>Group,
>
>Recently someone suggested that some of the prop noise for large
>diameter props was coming from the prop tips as they passed close to
>the boom tube. Whoever suggested that was "right on". For the last year
>or two, I had my engine raised up about an inch. It was raised so that
>I could fold the wings with a two blade IVO in the horizontal position.
>When I put the engine back on after my recent de-carbon, I put it back
>in the normal position. On the first flight, I noticed a significant
>increase in prop noise. The gap between the prop tip and the boom tube
>is now about an inch. Before it was close to two inches. So, now I have
>to decide if I should put the engine back up, or cut the 68" prop down
>to 66", or both. Ideas?
>
>John Jung
>Firestar II N6163J
>Surprise, AZ
>
>
Message 14
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--> Kolb-List message posted by: "pat ladd" <pj.ladd@btinternet.com>
never thought that the extra
tidbits being archived as being a problem other than taking some
extra disk space on Matt's disk bank. >>
Hi Jerb,
I agree. Search engines are pretty good provided that they have a handle to
latch on to and a few extra items should not cause a real problem.
The problem of not updating the subject line is I am afraid not confined
to this list. The topic is a running grouse on almost all I would suspect.
Things seem to have settled down now.
Cheers
Pat
--
Message 15
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--> Kolb-List message posted by: DAquaNut@aol.com
In a message dated 11/26/2005 6:15:32 A.M. Central Standard Time,
jrjungjr@yahoo.com writes:
I had my engine raised up about an inch. It was raised so that
I could fold the wings with a two blade IVO in the horizontal position.
When I put the engine back on after my recent de-carbon, I put it back
in the normal position. On the first flight, I noticed a significant
increase in prop noise. The gap between the prop tip and the boom tube
is now about an inch. Before it was close to two inches. So, now I have
to decide if I should put the engine back up, or cut the 68" prop down
to 66", or both. Ideas?
John,
I dont have any advice, But I would like to know how you raised your
engine that 1" and how noticeable of an effect it had on flight characteristics.
Ed ( In Houston)
Message 16
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| Subject: | Re: Firefly rigging and trim |
--> Kolb-List message posted by: DAquaNut@aol.com
In a message dated 11/26/2005 12:30:12 P.M. Central Standard Time,
ulflyer@verizon.net writes:
Some thing you might want to consider is changing out the 400x6 Shin
tires to 600x6. Guy Morgan who bought our FF made a post in the past
about changing out the tires and it improving high the speed handling
characteristics claiming it settled it down. Reference the message below:
Jerb,
I found out along time ago, Just like Ole Bro Beauford told me, He got
rid off those little wheels and tires right off.. I have the 6" wheels which
make a BIG difference. I was just wondering if a properly rigged Kolb had a
tendency to lift the left wing first, as viewed from the pilots seat.
Ed (In Houston)
Message 17
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| Subject: | Engine Noise and Radio's |
--> Kolb-List message posted by: "George T. Alexander, Jr." <gtalexander@att.net>
Kolbers:
Based on a number of threads over the last several months, I decided to go
for the DRE6000 ENR. Just prior to acquiring the new headset, I also had
gotten a new Icom A23. (Santa came early this year.)
Early in my use of the combination, I noticed once when, I was testing the
setup on the ground, not in the plane, I developed a very loud squeal when
keying the transmitter. Didn't think much about it at the time. Later,
when doing some Googling re: the A23 and available accessories, I ran across
an evaluation of the A23 by someone from Avionics West (which is where John
Hauck got his DRE6000 I think) that this squeal was common between the A23
and a number of good headsets. Writer says the two will not work together.
(Evaluation write-up at: http://www.avionicswest.com/articles/a23.htm )
The evaluator eludes to the problem being more in the relationship of the
headset and the headset adapter. I would tend to agree since rigged in my
FSII, (the one that Mike Shackleford thinks is retired)..... radio strapped
to my leg, cables under my leg and up my side to the headset and ENR box in
my shirt pocket... no squeal using the combination. Same condition whether
using the rubber ducky or the $5 coax antenna.
My $.02 worth.
George Alexander
http://gtalexander.home.att.net
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com]On Behalf Of John Hauck
Subject: Re: Kolb-List: Engine Noise and Radio's
<<<SNIP>>>
Larry T/Gang:
A large capacitor, about 22,000 mf, will do wonders for reducing rf
noise on the tx and rx sides of your radio. Install it on the 12DCV
side of the regulator/rectifier, close to the reg/rec, insuring you
have a good ground. The capacitor will have a + and - connector. It
will soak up a lot of extraneous noise.
Also, the headset you use has a lot to do with radio performance. I
complained for a year that my buddies radios were poorly transmitting.
Had a hard time hearing and understanding them. I had used David
Clark head sets, H-10-40, for years, but it was the DC sets that were
going belly up, not receiving or transmitting well. Was also getting
a squeal when transmitting. Blamed it on the little ICOM A3 radio.
Bought a new radio and had the same problem. May 2005, bought the
DRE6000 ENR headset and my radio and my buddies' radios problems went
away. It was all headset.
Take care,
john h
Message 18
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--> Kolb-List message posted by: bryan green <lgreen1@sc.rr.com>
Just wanted to let you know I have a 377 and Culver prop on Ebay if
anyone is interested.
Bryan Green
Do not archive
Message 19
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| Subject: | Engine Noise and Radio's |
--> Kolb-List message posted by: "Jack B. Hart" <jbhart@onlyinternet.net>
Kolbers,
If you get a squeal in the headset when you press the push to talk button,
more than likely it is a rf (radio frequency) feed back problem. I had this
problem and solved it with a snap on ferrite bead. They are inexpensive. I
have purchased them from:
http://www.allelectronics.com/cgi-bin/category.cgi?category=235&type=store
If your microphone adapter lead is too short, you may not have enough length
to wrap it through one turn. But if you can, it is a much less expensive fix
than purchasing a new head set. These snap on ferrite beads are used on the
computer accessory leads. If you have a junk box, you may have one you can
try. You can see the one I put on my radio at the top of:
http://www.thirdshift.com/jack/firefly/firefly110.html
I used to have ignition noise, but I eliminated it by moving the mag kill
switch from under the seat to close to the engine. I activate the
normally open switch with woven fish line. It is lighter than wire and
cannot radiate ignition noise.
Jack B. Hart FF004
Winchester, IN
Message 20
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--> Kolb-List message posted by: Charlie England <ceengland@bellsouth.net>
John Jung wrote:
>--> Kolb-List message posted by: John Jung <jrjungjr@yahoo.com>
>
>Group,
>
>Recently someone suggested that some of the prop noise for large
>diameter props was coming from the prop tips as they passed close to
>the boom tube. Whoever suggested that was "right on". For the last year
>or two, I had my engine raised up about an inch. It was raised so that
>I could fold the wings with a two blade IVO in the horizontal position.
>When I put the engine back on after my recent de-carbon, I put it back
>in the normal position. On the first flight, I noticed a significant
>increase in prop noise. The gap between the prop tip and the boom tube
>is now about an inch. Before it was close to two inches. So, now I have
>to decide if I should put the engine back up, or cut the 68" prop down
>to 66", or both. Ideas?
>
>John Jung
>Firestar II N6163J
>Surprise, AZ
>
Until you get up near 200 mph, the larger the prop diameter, the better
its efficiency in converting torque to thrust (the techies talk about
'mass flow' through the prop). Surprisingly small changes in diameter
can make significant differences in low speed thrust.
Did it fly ok with the elevated thrust line?
Charlie
Message 21
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--> Kolb-List message posted by: "J.D. Stewart" <jstewart@inebraska.com>
Not a Kolb, but I just put a 2" prop spacer on my Titan, and it quieted
things down considerably. I'm guessing in the -6dB range. Much more
enjoyable. Got rid of the harmonics that buzzed my aft panels, too.
J.D. Stewart
UltraFun AirSports, LLC
www.ultrafunairsports.com
Titan Aircraft E-mail list
http://groups.yahoo.com/group/Titanaircraft/
Challenger E-mail list
http://groups.yahoo.com/group/FlyChallenger/
Do Not Archive
>
>
> --> Kolb-List message posted by: jerb <ulflyer@verizon.net>
>
> When I was at Oshkosh back in 95 looking at the FireFly, Dennis
> commented about the noise being generated by the prop passing the
> trailing edge of the wing, they added a spacer to increase the
> clearance and found it reduced the noise also. John Hack might know
> more about this.
> jerb
>
> At 06:15 AM 11/26/2005, you wrote:
> >--> Kolb-List message posted by: John Jung <jrjungjr@yahoo.com>
> >
> >Group,
> >
> >Recently someone suggested that some of the prop noise for large
> >diameter props was coming from the prop tips as they passed close to
> >the boom tube. Whoever suggested that was "right on". For the last year
> >or two, I had my engine raised up about an inch. It was raised so that
> >I could fold the wings with a two blade IVO in the horizontal position.
> >When I put the engine back on after my recent de-carbon, I put it back
> >in the normal position. On the first flight, I noticed a significant
> >increase in prop noise. The gap between the prop tip and the boom tube
> >is now about an inch. Before it was close to two inches. So, now I have
> >to decide if I should put the engine back up, or cut the 68" prop down
> >to 66", or both. Ideas?
> >
> >John Jung
> >Firestar II N6163J
> >Surprise, AZ
>
Message 22
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--> Kolb-List message posted by: Mike Pierzina <planecrazzzy@yahoo.com>
http://www.wingsforum.com/viewtopic.php?p=3377#3377
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