Today's Message Index:
----------------------
1. 05:52 AM - thrust (Lee)
2. 06:24 AM - Re: thrust (Dennis Rowe)
3. 06:26 AM - Re: thrust (Richard Pike)
4. 06:35 AM - Looking for a 3.47 to 1 gearbox (Dennis Rowe)
5. 06:48 AM - Re: Looking for a 3.47 to 1 gearbox (Mike Welch)
6. 06:51 AM - Re: Re: thrust (Dennis Rowe)
7. 07:19 AM - Re: Looking for a 3.47 to 1 gearbox (Dennis Rowe)
8. 07:31 AM - Mike's Kolb MkIII (Herb)
9. 07:33 AM - Re: thrust (John Hauck)
10. 08:08 AM - Re: Re: Rotax 447 RPM Varies (Richard Girard)
11. 09:25 AM - Re: Mike's Kolb MkIII (Mike Welch)
12. 09:40 AM - Re: thrust (gliderx5@comcast.net)
13. 10:24 AM - Re: Mike's Kolb MkIII (Dennis Rowe)
14. 02:55 PM - Re: Mike's Kolb MkIII (Herb)
15. 02:58 PM - Re: Mike's Kolb MkIII (Herb)
16. 06:34 PM - Re: Pre-Purchase Inspection, Firestar (Allonsye)
17. 06:47 PM - Re: akron flyin of B-29 (Brad Nation)
18. 06:58 PM - Re: Mike's Kolb MkIII (Brad Nation)
19. 07:05 PM - Re: Re: Storm Aftermath (Brad Nation)
20. 07:25 PM - Re: Mike's Kolb MkIII (Mike Welch)
21. 08:02 PM - Re: Rotax 447 RPM Varies (Ducati SS)
22. 09:19 PM - Re: Firestar II stall speed... (Allonsye)
Message 1
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Hey everyone,
I know this subject probably has been beaten to death but here goes anyway.
I have a 503 Rotax with a gearbox and a 60 inch three blade IVO prop. (not
sure of the gear ratio.
This is on a Twinstar MKII.
I have it set to give me 6500 rpm on climb out.
Is there a way to get any more thrust out of this with a prop change or am I
maxed out with what I have ?
I am trying to get off the ground quicker. (it is fine for one person, but
uses a lot of runway with 2)
Also I am still looking at landing gear issues, would the person that made
spring steel gear please contact me and let me know what
size, wall thickness, grade material and hardness he used for his.
thanks for any responses.
Lee,
Twinstar MKII and CGS Hawk Classic
Message 2
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A 66 or 68 inch prop might help, if you could change to a C gearbox with the
3.47 to 1 ratio and use a 68 to 72 inch three blade you would get the most p
ossible out of the 503.
Dennis "Skid" Rowe
Mk3, 690L-70, Leechburg, PA
On Jun 24, 2013, at 8:51 AM, "Lee" <lmorgan100@charter.net> wrote:
> Hey everyone,
> I know this subject probably has been beaten to death but here goes anyway
.
> I have a 503 Rotax with a gearbox and a 60 inch three blade IVO prop. (not
sure of the gear ratio.
> This is on a Twinstar MKII.
> I have it set to give me 6500 rpm on climb out.
> Is there a way to get any more thrust out of this with a prop change or am
I maxed out with what I have ?
> I am trying to get off the ground quicker. (it is fine for one person, but
uses a lot of runway with 2)
> Also I am still looking at landing gear issues, would the person that made
spring steel gear please contact me and let me know what
> size, wall thickness, grade material and hardness he used for his.
> thanks for any responses.
> Lee,
> Twinstar MKII and CGS Hawk Classic
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
Message 3
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|
Typically you get more acceleration and climb as you make the prop longer. With
a 503 and a longer 3 bladed prop - say 64" or 66" - you can get to the point
that you have a lot of acceleration but you are top end limited, in effect you
end up with a pure climb prop. The reason for this is if you try and crank in
enough pitch into a longer 3 blade for a decent cruise speed, the engine will
likely not have enough torque to rev up properly, it will be constantly overloaded.
A 2 blade prop should not normally have this problem. Since the Ivo is
flexible, it will be just as smooth with 2 blades as it is with 3.
Right now I am running a 2 bladed 68" Ivo with a 582 and am very happy with the
performance. Take off is prompt, climb is excellent, and top end is good. The
engine will hit red line at full throttle in level flight and never lugs at any
RPM.
I had to make motor mount spacers to get the engine higher for boom tube clearance.
Before I made the spacers the longest prop I could use was 66". 66" was good,
68" is better. I did have a bit more top end with the 66", but not much,
and since I always cruise around 65 anyway, the 68" is all good.
If I were you, I would sell the 3 blade and get a 66" 2 blade Ivo and try that.
If your engine fails to make enough torque to handle it, you can trim it down
to 65" or even 64" and either way you will see quite an improvement over the
60" prop.
Can't help you on the landing gear.
--------
Richard Pike
Kolb MKIII N420P (420ldPoops)
richard (at) bcchapel(dot)org
Kingsport, TN 3TN0
Now faith is the substance of things hoped for, the evidence of things not seen.
Hebrews 11:1
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=403285#403285
Message 4
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Subject: | Looking for a 3.47 to 1 gearbox |
Kolbers,
I am still trying to find a 3.47 to 1 gearbox to adapt to my 2SI engine. If anyone
knows of a fair priced used C or E box please let me know.
Dennis "Skid" Rowe
Mk3, 690L-70, Leechburg, PA
Message 5
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Subject: | Re: Looking for a 3.47 to 1 gearbox |
Dennis,
Here's a start
http://www.rotaxservice.com/rotax_engines/rotax_582UL.htm
Mike Welch
do not archive
On Jun 24, 2013, at 8:34 AM, Dennis Rowe <rowedenny@windstream.net> wrote:
>
> Kolbers,
> I am still trying to find a 3.47 to 1 gearbox to adapt to my 2SI engine. If anyone
knows of a fair priced used C or E box please let me know.
>
> Dennis "Skid" Rowe
> Mk3, 690L-70, Leechburg, PA
>
>
>
>
>
>
>
>
Message 6
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This makes me want to try an old two blade 68 inch Ivo I have laying around. I
currently use a 68 inch three blade Powerfin F model. Always looking for more
performance. I didn't think two blades would absorb 70hp.
Dennis "Skid" Rowe
Mk3, 690L-70, Leechburg, PA
On Jun 24, 2013, at 9:26 AM, "Richard Pike" <richard@bcchapel.org> wrote:
>
> Typically you get more acceleration and climb as you make the prop longer. With
a 503 and a longer 3 bladed prop - say 64" or 66" - you can get to the point
that you have a lot of acceleration but you are top end limited, in effect you
end up with a pure climb prop. The reason for this is if you try and crank
in enough pitch into a longer 3 blade for a decent cruise speed, the engine will
likely not have enough torque to rev up properly, it will be constantly overloaded.
A 2 blade prop should not normally have this problem. Since the Ivo
is flexible, it will be just as smooth with 2 blades as it is with 3.
>
> Right now I am running a 2 bladed 68" Ivo with a 582 and am very happy with the
performance. Take off is prompt, climb is excellent, and top end is good. The
engine will hit red line at full throttle in level flight and never lugs at
any RPM.
>
> I had to make motor mount spacers to get the engine higher for boom tube clearance.
Before I made the spacers the longest prop I could use was 66". 66" was
good, 68" is better. I did have a bit more top end with the 66", but not much,
and since I always cruise around 65 anyway, the 68" is all good.
>
> If I were you, I would sell the 3 blade and get a 66" 2 blade Ivo and try that.
If your engine fails to make enough torque to handle it, you can trim it down
to 65" or even 64" and either way you will see quite an improvement over the
60" prop.
>
> Can't help you on the landing gear.
>
> --------
> Richard Pike
> Kolb MKIII N420P (420ldPoops)
> richard (at) bcchapel(dot)org
> Kingsport, TN 3TN0
> Now faith is the substance of things hoped for, the evidence of things not seen.
> Hebrews 11:1
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=403285#403285
>
>
>
>
>
>
>
>
>
>
Message 7
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Subject: | Re: Looking for a 3.47 to 1 gearbox |
Mike,
Forgot to mention I'm a scrounger, (soon to have three kids in college) . $800
bucks is my ceiling on a used gearbox. Had a good one located from a fellow Kolber
but the US Postal service smashed the shipping container and lost it. Bitter
disappointment!
Dennis "Skid" Rowe
Mk3, 690L-70, Leechburg, PA
On Jun 24, 2013, at 9:47 AM, Mike Welch <mdnanwelch7@hotmail.com> wrote:
>
> Dennis,
>
> Here's a start
>
> http://www.rotaxservice.com/rotax_engines/rotax_582UL.htm
>
> Mike Welch
> do not archive
>
>
> On Jun 24, 2013, at 8:34 AM, Dennis Rowe <rowedenny@windstream.net> wrote:
>
>>
>> Kolbers,
>> I am still trying to find a 3.47 to 1 gearbox to adapt to my 2SI engine. If
anyone knows of a fair priced used C or E box please let me know.
>>
>> Dennis "Skid" Rowe
>> Mk3, 690L-70, Leechburg, PA
>
>
>
>
>
>
Message 8
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|
Subject: | Mike's Kolb MkIII |
Mike
Wondering how your Kolb is coming along...Herb
On 06/24/2013 08:47 AM, Mike Welch wrote:
>
> Dennis,
>
> Here's a start
>
>
Message 9
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|
Also I am still looking at landing gear issues, would the
person that made spring steel gear please contact me and let
me know what
size, wall thickness, grade material and hardness he used
for his.
thanks for any responses.
Lee,
Twinstar MKII and CGS Hawk Classic
Lee/Kolbers:
I use .120" wall 4130, heat treated to 48 Rockwell. I don't
know what the diameter of the gear leg sockets of a MKII
are. Probably 1.125".
Good idea to weld the axle socket to the gear leg, rather
than use the standard "gear leg/axle socket" that bolts to
the end of the gear leg. Welding, for me, proved to be much
stronger than the bolt on socket.
All alignment and drilling should be done prior to heat
treating.
john h
mkIII
Rock House, south of Burns Junction, Oregon
Message 10
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|
Subject: | Re: Rotax 447 RPM Varies |
Gregg, Page 15-2 of the Rotax Installation Manual for two strokes says, "A
suitable fuel filter of .15 mm mesh size must be fitted between pump and
carburetor. DO NOT USE PAPER FILTERS. (my emphasis).
Regardless of the reason that's the requirement from the white coats in
Austria.
Rick Girard
do not archive
On Sun, Jun 23, 2013 at 3:00 PM, t41pilot <t41pilot@frontier.com> wrote:
>
> I have a 447 with about 30 hours on it and as undoctor points out, the rpm
> will change as the pitch of the aircraft changes with a given throttle
> setting. Pitch changes the load on the engine so pitch up equals more load
> and less indicated rpm and vice versa. My rpm changes are 200 or 300 rpm in
> either direction as pitch changes. not 1000 as you are describing. So, the
> important thing here is whether your problem occurs at a constant altitude
> or not and just around your cruise setting or across the entire throttle
> range. If you are maintaining a steady altitude, then you do have a
> problem. If it occurs just in the 4 to 5 grand range and nowhere else,
> then the midrange circuit in the carb needs looking at. Check for worn
> needle and that the clip is still fitting snuggly in the grooves. Make sure
> the rubber o ring on top of the clip is secure. Make sure your throttle
> cable is snug and properly adjusted at the carb inlet. Pulse line for fuel
> pump should be as short as possib!
> le and stiff as possible. Pump has to lift fuel quite a ways on a
> firefly. A partially plugged fuel filter will cause engine surges too.
> I've read that paper style fuel filters are not recommended when using
> auto gas because of the alcohol. Not sure how true that is but for a
> couple of bucks I changed mine out to a different type just for peace of
> mind. So far so good on my engine. I'm presently using 89 octane auto gas.
> I manage my pitch during flight with a vertical deviation indicator of my
> own design that works quite well. I find that I use it alot to help
> maintain a constant altitude which also helps maintain a steady EGT temp.
>
> --------
> Gregg Kaat
> 2011 Firefly
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=403226#403226
>
>
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
Message 11
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Subject: | Re: Mike's Kolb MkIII |
Hi Herb,
The plane is coming along quite well, its mostly me that's the hangup.
Since I retired a few years ago, finances have been slim pickings,
and the other problem I'm having is a health issue that I am mostly
recovering from.
My wife an I are making plans right now to move to Florida to a
retirement village, where I will go back to work and have some pocket
money,
and therefore I should be able to afford the flight training and sundry
costs of actually flying the plane.
As far as the plane goes, it virtually finished, with the exception of
firing up the engine and dialing everything in. In the meantime, for
the last few months
I've been working on my GlaStar. Since I have all the parts on-hand, it
doesn't cost me anything to tinker with it and get it closer to being
done, too.
Sure is hard to get much done in this sweltering humidity. Don't mind
the heat, but god does the humidity get me down!!
Here is my plane out on my front lawn. Underneath the wing gap cover
is my ballistic parachute. If you look closely, you can see my video
game modified
joystick, complete with the push-to-talk com radio button and the coolie
hat for electric trim. I left the doors off. Kinda seems dumb to have
doors on with this heat.
Best regards, Herb=85.and thank for asking!!
Mike Welch
Kolb MkIII CX w/ tubo Suzuki
Now=85..got to go out and mow that lawn!!!
On Jun 24, 2013, at 9:30 AM, Herb <herbgh@nctc.com> wrote:
>
> Mike
>
> Wondering how your Kolb is coming along...Herb
>
>
> On 06/24/2013 08:47 AM, Mike Welch wrote:
>>
>> Dennis,
>>
>> Here's a start=85=85
>>
>>
>
>
>
>
>
>
Message 12
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|
Lee
=C2-
I think I had a 68" 3 blade IVO on my MKII with a 503.=C2- Below is a lin
k to a video showing takeoff performance.
=C2-
http://www.youtube.com/watch?v=wAkNU2UcADw
Malcolm
----- Original Message -----
From: "Lee" <lmorgan100@charter.net>
Sent: Monday, June 24, 2013 8:51:56 AM
Subject: Kolb-List: thrust
Hey everyone,
I know this subject probably has been beaten to death but here goes anyway.
I have a 503 Rotax with a gearbox and a 60 inch three blade IVO prop. (not
sure of the gear ratio.
This is on a Twinstar MKII.
I have it set to give me 6500 rpm on climb out.
Is there a way to get any more thrust out of this with a prop change or am
I maxed out with what I have ?
I am trying to get off the ground quicker. (it is fine for one person, but
uses a lot of runway with 2)
Also I am still looking at landing gear issues, would the person that made
spring steel gear please contact me and let me know what
size, wall thickness, grade material and hardness he used for his.
thanks for any responses.
Lee,
======================
==
Message 13
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|
Subject: | Re: Mike's Kolb MkIII |
Da amm! Nice.
Just sayin.
Do not archive
Dennis "Skid" Rowe
Mk3, 690L-70, Leechburg, PA
On Jun 24, 2013, at 12:23 PM, Mike Welch <mdnanwelch7@hotmail.com> wrote:
> Hi Herb,
>
> The plane is coming along quite well, its mostly me that's the hangup. Since
I retired a few years ago, finances have been slim pickings,
> and the other problem I'm having is a health issue that I am mostly recovering
from.
>
> My wife an I are making plans right now to move to Florida to a retirement village,
where I will go back to work and have some pocket money,
> and therefore I should be able to afford the flight training and sundry costs
of actually flying the plane.
>
> As far as the plane goes, it virtually finished, with the exception of firing
up the engine and dialing everything in. In the meantime, for the last few
months
> I've been working on my GlaStar. Since I have all the parts on-hand, it doesn't
cost me anything to tinker with it and get it closer to being done, too.
>
> Sure is hard to get much done in this sweltering humidity. Don't mind the heat,
but god does the humidity get me down!!
>
> Here is my plane out on my front lawn. Underneath the wing gap cover is my
ballistic parachute. If you look closely, you can see my video game modified
> joystick, complete with the push-to-talk com radio button and the coolie hat
for electric trim. I left the doors off. Kinda seems dumb to have doors on with
this heat.
>
> Best regards, Herb.and thank for asking!!
>
> Mike Welch
> Kolb MkIII CX w/ tubo Suzuki
>
> Now..got to go out and mow that lawn!!!
>
> <DSC01404.jpeg>
> <DSC01405.jpeg>
>
>
>
>
>
> On Jun 24, 2013, at 9:30 AM, Herb <herbgh@nctc.com> wrote:
>
>>
>> Mike
>>
>> Wondering how your Kolb is coming along...Herb
>>
>>
>> On 06/24/2013 08:47 AM, Mike Welch wrote:
>>>
>>> Dennis,
>>>
>>> Here's a start
>
Message 14
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Subject: | Re: Mike's Kolb MkIII |
Absolutely beautiful job..!! Mike
Its begging to be flown...
Humidity? Florida?? :-) Good luck...Herb
On 06/24/2013 11:23 AM, Mike Welch wrote:
> Hi Herb,
>
> The plane is coming along quite well, its mostly me that's the hangup. Since
I retired a few years ago, finances have been slim pickings,
> and the other problem I'm having is a health issue that I am mostly recovering
from.
>
> My wife an I are making plans right now to move to Florida to a retirement
village, where I will go back to work and have some pocket money,
> and therefore I should be able to afford the flight training and sundry costs
of actually flying the plane.
>
> As far as the plane goes, it virtually finished, with the exception of firing
up the engine and dialing everything in. In the meantime, for the last few
months
> I've been working on my GlaStar. Since I have all the parts on-hand, it doesn't
cost me anything to tinker with it and get it closer to being done, too.
>
> Sure is hard to get much done in this sweltering humidity. Don't mind the
heat, but god does the humidity get me down!!
>
> Here is my plane out on my front lawn. Underneath the wing gap cover is my
ballistic parachute. If you look closely, you can see my video game modified
> joystick, complete with the push-to-talk com radio button and the coolie hat
for electric trim. I left the doors off. Kinda seems dumb to have doors on with
this heat.
>
> Best regards, Herb.and thank for asking!!
>
> Mike Welch
> Kolb MkIII CX w/ tubo Suzuki
>
> Now..got to go out and mow that lawn!!!
>
>
> On Jun 24, 2013, at 9:30 AM, Herb <herbgh@nctc.com> wrote:
>
>>
>> Mike
>>
>> Wondering how your Kolb is coming along...Herb
>>
>>
>> On 06/24/2013 08:47 AM, Mike Welch wrote:
>>>
>>> Dennis,
>>>
>>> Here's a start
>>>
>>>
>>
>>
>>
>>
>>
Message 15
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Subject: | Re: Mike's Kolb MkIII |
How about a pic or two of the engine install...I bought and resold a 4
cyl Geo engine with the high dollar Canadian ign and injection
system..Had a belt redrive from a guy out in the mid west...Now out of
business.. The engine will run ok with default settings if the same
system...Herb
On 06/24/2013 11:23 AM, Mike Welch wrote:
> Hi Herb,
>
> The plane is coming along quite well, its mostly me that's the hangup. Since
I retired a few years ago, finances have been slim pickings,
> and the other problem I'm having is a health issue that I am mostly recovering
from.
>
> My wife an I are making plans right now to move to Florida to a retirement
village, where I will go back to work and have some pocket money,
> and therefore I should be able to afford the flight training and sundry costs
of actually flying the plane.
>
> As far as the plane goes, it virtually finished, with the exception of firing
up the engine and dialing everything in. In the meantime, for the last few
months
> I've been working on my GlaStar. Since I have all the parts on-hand, it doesn't
cost me anything to tinker with it and get it closer to being done, too.
>
> Sure is hard to get much done in this sweltering humidity. Don't mind the
heat, but god does the humidity get me down!!
>
> Here is my plane out on my front lawn. Underneath the wing gap cover is my
ballistic parachute. If you look closely, you can see my video game modified
> joystick, complete with the push-to-talk com radio button and the coolie hat
for electric trim. I left the doors off. Kinda seems dumb to have doors on with
this heat.
>
> Best regards, Herb.and thank for asking!!
>
> Mike Welch
> Kolb MkIII CX w/ tubo Suzuki
>
> Now..got to go out and mow that lawn!!!
>
>
> On Jun 24, 2013, at 9:30 AM, Herb <herbgh@nctc.com> wrote:
>
>>
>> Mike
>>
>> Wondering how your Kolb is coming along...Herb
>>
>>
>> On 06/24/2013 08:47 AM, Mike Welch wrote:
>>>
>>> Dennis,
>>>
>>> Here's a start
>>>
>>>
>>
>>
>>
>>
>>
Message 16
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Subject: | Re: Pre-Purchase Inspection, Firestar |
Excellent feed back folks - I appreciate it. W&B yes, yes, yes. Some dual -absolutely.
Which begs the question, deadstick, this must be a handful. I'm thinking
that a ballistic parachute is an absolute necessity. My impression is that
of a helicopter - collective down, stick forward, maintain rotor rpm till just
above the ground.
P.
--------
"A good traveller has no fixed plans and is not intent on arriving" Lao
Tzu (570-490 BC)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=403361#403361
Message 17
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Subject: | Re: akron flyin of B-29 |
Yea that sound is great, but it's not not just the sound it's the feeling an
d vibration.
A few years ago I was lucky enough to go to an air show (and get paid for no
less while in the NMANG) where there were 8 maybe 10 WW2 airplanes, B-29, B
-26parked on the Tarmac in a semi circle square. I was standing in the middl
e with all of them running. It was soo cool! You could feel it! It's not nea
r the same with jets. There something about those radials.
Sent from my iPad
Brad
Do not archive.
On Jun 22, 2013, at 13:19, Gary Aman <zeprep251@aol.com> wrote:
> Got to see it up close and hear those 3350's sing.
> <amelia>
> <amelia>
>
Message 18
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Subject: | Re: Mike's Kolb MkIII |
Nice looking Plane.
Sent from my iPad
Brad
On Jun 24, 2013, at 10:23, Mike Welch <mdnanwelch7@hotmail.com> wrote:
> Hi Herb,
>
> The plane is coming along quite well, its mostly me that's the hangup. Since
I retired a few years ago, finances have been slim pickings,
> and the other problem I'm having is a health issue that I am mostly recovering
from.
>
> My wife an I are making plans right now to move to Florida to a retirement village,
where I will go back to work and have some pocket money,
> and therefore I should be able to afford the flight training and sundry costs
of actually flying the plane.
>
> As far as the plane goes, it virtually finished, with the exception of firing
up the engine and dialing everything in. In the meantime, for the last few
months
> I've been working on my GlaStar. Since I have all the parts on-hand, it doesn't
cost me anything to tinker with it and get it closer to being done, too.
>
> Sure is hard to get much done in this sweltering humidity. Don't mind the heat,
but god does the humidity get me down!!
>
> Here is my plane out on my front lawn. Underneath the wing gap cover is my
ballistic parachute. If you look closely, you can see my video game modified
> joystick, complete with the push-to-talk com radio button and the coolie hat
for electric trim. I left the doors off. Kinda seems dumb to have doors on with
this heat.
>
> Best regards, Herb.and thank for asking!!
>
> Mike Welch
> Kolb MkIII CX w/ tubo Suzuki
>
> Now..got to go out and mow that lawn!!!
>
> <DSC01404.jpeg>
> <DSC01405.jpeg>
>
>
>
>
>
> On Jun 24, 2013, at 9:30 AM, Herb <herbgh@nctc.com> wrote:
>
>>
>> Mike
>>
>> Wondering how your Kolb is coming along...Herb
>>
>>
>> On 06/24/2013 08:47 AM, Mike Welch wrote:
>>>
>>> Dennis,
>>>
>>> Here's a start
>
Message 19
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Subject: | Re: Storm Aftermath |
I guess I was too subtle or my sense of humor is a little off.
Sent from my iPad
Brad
On Jun 23, 2013, at 22:30, "Dennis Thate" <retroman@frontier.com> wrote:
>
> Hard to please some on this forum......try this,
> the the perigee-syzygy moon, or tonight's 'Super Moon' !
>
> --------
> Both optimists and pessimists contribute to our society. The optimist invents
the airplane and the pessimist the parachute. ~Gil Stern
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=403264#403264
>
>
>
>
> Attachments:
>
> http://forums.matronics.com//files/dscn5060_458.jpg
>
>
>
>
>
>
>
Message 20
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Subject: | Re: Mike's Kolb MkIII |
Herb,
I'll take a few pictures tomorrow.
Mike
Message 21
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Subject: | Re: Rotax 447 RPM Varies |
Unless the composition of paper filters has changed recently their main difference
from screen filters is that they will not pass water. Up side - no water in
carb, down side- no fuel in carb , and we all know about Ethanol and water.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=403368#403368
Message 22
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Subject: | Re: Firestar II stall speed... |
Thanks very much for posting this topic AZ. As an aspiring Kolb pilot, I found
the discourse exceedingly helpful.
Cheers and eternal tailwinds,
Paul
Arizona Flyer wrote:
> Thanks so much guys I really appreciate the input! t41pilot & wakataka; We are
flying in a parallel universe with the exact same experiences. My Firestar II
is 419lbs and it's pretty loaded with a Rotax 503DC, electric start, EIS, ASI
with dual pitot tubes, fuel gauge, Facet aux fuel pump, 3 blade Ivoprop. Being
only 148 lbs I really expected a 30mph stall speed. During my short flight
with my light weigh I had to turn the trim knob all the way for level flight.
Looking back, and not having flown for 11 years, even with my long experience
flying these types (Quicksilver Sprint II, Quicksilver Sport, Buccaneer SX amphibian,
Rans S-12, Avid Flyer Mark IV, Rans S-7) I should have taken the Firestar
to a longer airstrip. zeprep251(at)aol.com; Yes my first flight was a little
scary and a few hundred feet up, the desert airstrip I made on my property
that seemed plenty long on the ground @530ft well it sure got small looking down
from above but I had planned to practice some landings at a slightly longer
airstrip just south of my place where I had graded a runway for RC model airplanes,
it is about 600ft and more open. That stall drop & 2 bounces on my first
landing rattled me a bit and I drifted left off the runway but not much, and
it took almost all of the length to stop. 'Get right back on that horse' I took
off again and my 2nd landing was good but I still drifted left. I may have
started braking at too high a speed but the runway end was coming up fast. Years
ago I was very good at tracking my Buccaneer SX, Avid Flyer, and Rans S-7
tail draggers but I remember I took some practice and I was a little surprised
at how rusty I was with the Firestar. On the 3rd landing I did pretty well, the
4th landing was perfect. I was exhausted from the last 6 weeks of getting all
this work done, and nervous before my 1st flight, so after the 4th landing
as I sat there with the engine running I figured I could probably get it into
my strip but SAFETY FIRST, don't push it especially when tired so I parked the
nose unde!
r a tree
and tied it down. All this week I have been working on extending my runway and
I am up from 530ft to 800ft now. Also I think I'll put on VG's from StolSpeed
as a poster here said they brought his Firestar II stall speed down 5mph, from
35mph down to 30mph and says it handles better at slower speeds and also feels
safer. Not that the Firestar is unsafe in any way but it would help with a
shorter strip and add some piece of mind. That abrupt stall drop still haunts
me but I know after a couple more flights and landings I'll be smiling ear to
ear :) For what it's worth, my yellow Firestar II was built in 1999 by Gary Aman
and I bought it last month from 'Captain' Ron Larson of Port Charlotte Florida.
A very good mechanic nicknamed 'Rotax Rick' did a rebuild on the 503 and
has greatly helped me with questions & info. The airplane is in good condition
and Ron only wanted $7,800 so I bought it. Rotax Rick, Travis & Brian at Kolb
have said I got a very good deal at that price. It did cost me $3,075 to have
Bill Wilmeroth at Deland Barnstormers transport it from Florida to Arizona and
he did a great job. So happy with my purchase. Thanks again for the great input
guys :)
--------
"A good traveller has no fixed plans and is not intent on arriving" Lao
Tzu (570-490 BC)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=403370#403370
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