Today's Message Index:
----------------------
1. 02:05 PM - Mark-3 Classic still for Sale (KIRBY, DENNIS T NH-03 USAF AFMC AFNWC/EZS)
2. 05:09 PM - STOL question Mark 3 and Firestar (Bill Berle)
3. 07:15 PM - Re: STOL question Mark 3 and Firestar (Richard Pike)
4. 07:38 PM - Re: Firestar project for sale, $2000 (Richard Pike)
5. 08:39 PM - Noise Reduction (Rick Neilsen)
Message 1
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Subject: | Mark-3 Classic still for Sale |
Kolb Friends -
My Classic is still for sale.
If anybody on the Kolb List is interested, here are the specifics:
First flew - 2002
Total time - 340 hrs
Engine - Rotax-912ul (80 hp)
Powerfin 72" 3-blade prop
Empty wt - 580 lbs
Fuel Capacity - 12 gal
Heavy-duty Landing Gear
Matco 6" Tailwheel
BRS (Repacked March-2016)
VGs
$21,000.
Comes with flatbed trailer, airplane cover, and support dolly for the tail/wings.
E-mail or call me for pictures and more info, if interested.
Ad will go on Barnstormers next week.
Dennis Kirby
Sandia Park NM
(505) 846-7127
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Subject: | STOL question Mark 3 and Firestar |
Since I have zero experience flying Kolbs, I desperately need the experienced pilots
to answer a question.
You have a stock Kolb Mark 3 (not the 3X), and a Kolb Firestar 2 sitting next to
each other. Both have the SAME engine, an HKS 60HP 4 stroke. Both have the SAME
weight pilot. There is NO passenger in the Mark 3.
Which one has better STOL performance? Which one will get in and out of smaller
strips? How much better is the smaller Firestar's handling and maneuverability?
While I am building my project, I have an opportunity to purchase a flyable Firestar,
and I have an opportunity to purchase a flying older Mark 3, and I have
an HKS 700E engine.
My desire for the airplane is 95% for off-airport STOL flying.
Bill Berle
www.ezflaphandle.com - safety & performance upgrade for light aircraft
www.grantstar.net - winning proposals for non-profit and for-profit entities
--------------------------------------------
On Mon, 6/27/16, Herb <Herbgh@nctc.com> wrote:
Subject: Re: Kolb-List: HKS engine
To: kolb-list@matronics.com
Date: Monday, June 27, 2016, 2:01 PM
Good info...I will save all the comments in a word
file...
There may be an HKS group at yahoo ? Herb
On 06/27/2016 12:52 PM,
Richard Girard
wrote:
Herb, One thing you can check is to see
if the
carbs have been changed to have the needle clip in
the fourth
(top) groove. While it won't guarantee that the
engine is a 1000
hr TBO engine, it's a good indication. Now,
while you have the
needle out, move the clip to the second groove to
stop wasting
fuel. The rationale for richening up the midrange is
to protect
the exhaust valve guide. A bit like shooting
yourself in the
foot to see if your pistol is properly sighted in.
Leaning out
the mixture in the midrange lowers EGT and improves
fuel economy
by about a gallon per hour. To protect the valve
guide I premix
MMO at one and a half oz. per gallon. Over 300 hours
on my
engine and no sign of problems. Note that the full
throttle
mixture is not changed by doing this.
You also might want to look at the throttle
linkage. The
HKS comes with motorcycle style cable throttles,
i.e. if the
cable breaks the carb goes to idle. Rotax has the
linkage
parts (or the Bing Agency in Council Groves, KS)
to change it
over to an aircraft style cable where the throttle
goes to
full if the cable breaks, instead.
Last, to protect the gear box, always cool the
engine to
below 250 degrees before shut down.
It's a really great engine.
Rick Girard
On Mon, Jun
27, 2016 at 12:25 PM, Herb
<Herbgh@nctc.com>
wrote:
-->
Kolb-List message posted by: Herb <Herbgh@nctc.com>
Thanks Larry
I will put some hours on the plane this
summer....but
likely will continue to look for a Firestar
1....
right...the engine is a keeper.... and as I
said...that
is why I bought the plane...
Now to get it from Michigan to South Cent.
Ky...
Spending the day replacing rotors,calipers and
pads on rear
of my Jeep Grand Cherokee..next onto the trailer
to grease
bearings, fix wiring and replace two of the 4
tires...
always something!! Herb
On 06/27/2016 11:20 AM, Larry Cottrell
wrote:
I can only tell you what I think, not prove.
I believe
that the extended rebuild time was more
through
experience with the engines rather than any
improvement
of them. I know that my rebuild time went up
without any
one doing any thing to improve them. Jerry @
Greensky
could give you the definitive answer, and he
is a good
guy!
I would also think that you would only have
to enter the
change in the log book and fly off a
probationary
period. Personally I would not sell the HKS
with the
plane, by all means put it on the plane that
you want to
keep. Three gallons per hour, increase in
speed, range
and quiet. Put a two blade warp on it
however. I ruined
one of the three blade IVO trying to put
enough twist in
it to get the right rpm. Its also very nice
not having
to mix oil with the gas.
I personally am not going to send an engine
in for a
rebuild when it is performing as it should.
I am willing
to take the risk. I don't care what the
company feels
would reduce their liability.
Larry
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Message 3
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Subject: | Re: STOL question Mark 3 and Firestar |
Since I have a MKIII and a FSII (not mine, but I get to fly it) both out behind
the house at the strip, and both have identical 582's with identical props, I
can offer a little bit of insight.
STOL performance: the FSII is a bit lighter and so it tends to accelerate and climb
out a bit better.
The MKIII has flaps which help it get into tight places a bit easier.
Handling and maneuverability is a function of fine tuning the aileron bell crank
lengths to adjust control pressure. Once we got that sorted out, there is not
a whole lot of difference. Both are very agile. I would probably have to go
fly them both back to back to be able to really have a definite answer.
--------
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Would you consider yourself to be a good person?
https://www.youtube.com/watch?v=VWcDXT6pH7A
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=457543#457543
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Subject: | Re: Firestar project for sale, $2000 |
Since it never sold and the price came down a bit, went ahead and bought this today.
I guess I needed a project, and building a Firestar cage from scratch would
certainly qualify....
The goal is make it Part 103 legal. Might try and swap out the 447 for a good 277,
or one of the new Paramotors, and get that weight down. Who knows? Ought to
be fun.
--------
Richard Pike
Kolb MKIII N420P (420ldPoops)
Kingsport, TN 3TN0
Would you consider yourself to be a good person?
https://www.youtube.com/watch?v=VWcDXT6pH7A
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=457544#457544
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We had a discussion a while ago about ways to reduce noise in our Kolbs. I
just flew tonight and tried to evaluate how quiet it is now with my current
headsets. I fly with Bose QC-20 noise canceling ear buds under my
Sigtronics over the ear headset with the Headset noise canceling kit. I
plug my Bose ear buds into my intercom to hear and my Sigronics microphone
into my intercom to speak. At cruise it is like sitting in my living room
with a truck idling out side the house. I can hear the low tones of the
engine in the back ground but I can hear voices on the radio at normal
indoor volumes. When I talk, the intercom opens the microphone so I can
hear more noise till the squelch cuts it off.
When I started the engine tonight I had the Bose ear buds in my ears but
turned off so I could hear the engine sounds clearly. Then I turned on the
Bose noise canceling and that cut the idle engine noise to a reasonable
level. Then I put the Sigtronics headset on with the Sigtronics noise
canceling off. This cut out most of the high frequency noise. Then I turned
on the Sigtronics noise canceling kit. Not much change. In the air with my
big VW turns 3200 RPM at app 60% cruise power. If I turn the Sigtronics
noise canceling kit off I can hear the engine sounds better so I turn if
off from time to time to check the health of the engine. My engine turns
only 3600 at full power (it is loud!) so most of the noise is lower
frequency which noise canceling does a pretty good job of canceling.
Rotax engines turn more RPMs creating a higher frequency noise which noise
canceling doesn't work as well to cancel. My understanding is that higher
frequencies are easier to reduce with passive aviation head sets but I
don't know for sure. I other words I don't know how well my setup will work
for you.
Anyway it sure is nice not having my old ears ringing after every flight.
Rick Neilsen
Redrive VW Powered MKIIIC
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