Today's Message Index:
----------------------
1. 03:08 AM - Angle of engine (Theodore Cowan)
2. 07:55 AM - Re: Angle of engine (John Hauck)
3. 09:49 AM - Re: Aileron Gap Seals (Shadow94)
4. 11:08 AM - Re: Re: Aileron Gap Seals (John Hauck)
Message 1
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To explain my comment on raising the rear of the engine on slingshots I offer this:
They changed the angle of attack on the slingshot from the norm of 12 degrees
AOA to 9 degrees. As you added speed to the kolbs the tail kept climbing
up until it was almost tipping over in the air. It creates its own drag.
You could change a few things and still never keep it level. However, the kolb
is designed to stay level in flight throughout the speed cycle. Somehow they
missed the fact the engine mounts were not in the proper line with the fuse.
You MUST raise the rear of the engine to keep the prop more aligned to the flightline
of the aircraft or the motor actually pushes the craft over onto its
nose - in flight and on the ground. The slingshot is the only one to have this
extreme problem. Without modification the engine looks as if it is falling
backwards and the thrust pushes the craft over. I suppose there will be a doubting
Thomas out there. The drag induced by this setup is extreme. I reversed
the lord mounts so the rear were up and the front mounts were down and added
a 3/8 inch shim (kolb supplied) on top of the mount in the rear. Spent many
hours with my 582 and then again with the 912 correcting this flaw in the design
of the SS. There is no bungie in the world that will straighten your flight
as the cure I just mentioned. Trust me on this. I would be happy to discuss
this off line with anyone. Email me and i will call you. If you have never
flown a slingshot you will not understand this. The 'New kolb company' knew this.
The short tail boom really makes it stand out. I almost never have to change
el trim in flight up to 95 mph. Faster requires a little effort on the stick.
Hope this helps anyone out there with a slingshot they are fighting with
for trim. Ted cowan slingshot 900hrs 912ul zoom zoom By the way, 85 to 95
is normal cruse for this combination at abt 3.4 gph!!!
Sent from my iPhone
Message 2
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I didn't understand what you meant by "heavy stick".
Thanks for the info.
john h
mkIII
Wenatchee, WA
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of
Theodore Cowan
Sent: Thursday, September 03, 2015 3:08 AM
Subject: Kolb-List: Angle of engine
<tc1917@bellsouth.net>
To explain my comment on raising the rear of the engine on
slingshots I offer this: They changed the angle of attack
on the slingshot from the norm of 12 degrees AOA to 9
degrees. As you added speed to the kolbs the tail kept
climbing up until it was almost tipping over in the air. It
creates its own drag. You could change a few things and
still never keep it level. However, the kolb is designed to
stay level in flight throughout the speed cycle. Somehow
they missed the fact the engine mounts were not in the
proper line with the fuse. You MUST raise the rear of the
engine to keep the prop more aligned to the flightline of
the aircraft or the motor actually pushes the craft over
onto its nose - in flight and on the ground. The slingshot
is the only one to have this extreme problem. Without
modification the engine looks as if it is falling backwards
and the thrust pushes the craft over. I suppose there will
be a doubting Thomas out there. The drag induced by this se!
tup is extreme. I reversed the lord mounts so the rear
were up and the front mounts were down and added a 3/8 inch
shim (kolb supplied) on top of the mount in the rear. Spent
many hours with my 582 and then again with the 912
correcting this flaw in the design of the SS. There is no
bungie in the world that will straighten your flight as the
cure I just mentioned. Trust me on this. I would be happy
to discuss this off line with anyone. Email me and i will
call you. If you have never flown a slingshot you will not
understand this. The 'New kolb company' knew this. The
short tail boom really makes it stand out. I almost never
have to change el trim in flight up to 95 mph. Faster
requires a little effort on the stick. Hope this helps
anyone out there with a slingshot they are fighting with for
trim. Ted cowan slingshot 900hrs 912ul zoom zoom By the
way, 85 to 95 is normal cruse for this combination at abt
3.4 gph!!!
Sent from my iPhone
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Message 3
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| Subject: | Re: Aileron Gap Seals |
Richard,
Thanks for the photos. I appears that the gap seals are attached to the bottom
of both the wing and the aileron with a bit of slack to account for aileron
movement.
I assume the are constructed out of the same covering as the wing and aileron.
thanks again for the input.
--------
Mark
Twinstar MKII
Great Bend, PA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=446739#446739
Message 4
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| Subject: | Re: Aileron Gap Seals |
Realize the post was addressed to Richard only. Hope it
will be permissible to share a response.
Unless I am badly mistaken, 3" finishing tape is used for
the gap seals.
The original Kolb Aircraft construction manuals have some
very good information (tricks of the trade) for installing
and finishing gap seals.
I'm not at home or I would attach those instructions to this
post.
john h
mkIII
Wenatchee, WA
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com] On Behalf Of
Shadow94
Sent: Thursday, September 03, 2015 9:49 AM
Subject: Kolb-List: Re: Aileron Gap Seals
<seanote@echoes.net>
Richard,
Thanks for the photos. I appears that the gap seals are
attached to the bottom of both the wing and the aileron with
a bit of slack to account for aileron movement.
I assume the are constructed out of the same covering as the
wing and aileron.
thanks again for the input.
--------
Mark
Twinstar MKII
Great Bend, PA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=446739#446739
=
Photoshare, and much much more:
=
=
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