dhkey(at)msn.com
Guest
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 Posted: Wed Sep 06, 2006 3:56 pm Post subject: elevator cables -- was Oil Pressure question |
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Checking now.
thanks.
| Quote: | From: Eugene Zimmerman <etzim62(at)earthlink.net>
Reply-To: kolb-list(at)matronics.com
To: kolb-list(at)matronics.com
Subject: elevator cables -- was Oil Pressure question
Date: Wed, 6 Sep 2006 14:44:17 -0400
David, & Kolb Friends,
The problem you described and what you did that corrected it could
indicate another "possible" problem.
If your elevator cables are not tight enough you will be able to move
the stick fore and aft without the elevator moving the same degree “under
flight loads”.
This problem is more common than many kolb pilots recognize.
I recommend that all kolb owners do this simple check. Have someone
immobilize the trailing edge of the elevators by firmly holding them in
the neutral position then check how far the stick can be moved fore and
aft.
It is not uncommon to find that the stick can be moved full fore and aft
against the stops without any movement in the elevator.
Even tight cables have noticeable stretch.
Just checking for “no load” only elevator movement is inadequate and
potentially dangerous in my opinion. The elevator is by far your most
critical control surface and all good Kolb pilots will confirm its working
integrity.
David, the reason I suspect this could be your problem is because with
normal elevator control you should definitely be able to pitch up your
plane with "any" flap or aileron configuration.
Gene,
On Sep 6, 2006, at 9:20 AM, David Key wrote:
>
>
>Restated...
>When I pull back on the stick the plane pitches up then stalls. It didn't
>pitch up much before.
>
>do not archive
>>From: Thom Riddle <jtriddle(at)adelphia.net>
>>Reply-To: kolb-list(at)matronics.com
>>To: kolb-list(at)matronics.com
>>Subject: Re: Oil Pressure question
>>Date: Wed, 6 Sep 2006 07:47:16 -0400
>>
>>David,
>>
>>...It pitches up in the stall now and it's easy to see and feel....
>>
>>Perhaps I'm misunderstanding you. Are you saying that when it stalls the
>>nose pitches up? Or are you saying that when pitching up the nose (using
>>elevator) that it stalls? If the nose pitches up in response to a stall,
>>rather than as the cause of the stall, you have a problem.
>>
>>After a stall, nose should fall down and if the wings are fairly level
>>and you are not yawed to badly, the airplane will start flying again
>>immediately. If it automatically pitches up in response to a stall, this
>>is dangerous, perhaps being caused by a way too aft CG.
>>
>>I hope I misunderstood you.
>>
>>Thom in Buffalo
>>do not archive
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