Home › Forums › Ask the Gurus › Clipped ailerons?
- This topic has 5 replies, 2 voices, and was last updated 7 years, 1 month ago by Roscoe Rosché.
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April 7, 2017 at 09:00 #7025FerrellParticipant
Brand new member here. I am considering purchasing a 1977 Grumman Tiger that has one strange thing I cannot figure out. The best way I can describe it is that the trailing edge the ailerons look to have approximately a half inch clipped off… I wish I had a pic to attach but I did not take one. Does anyone know why this would have been done? Was there and AD or something that would have required this? Thanks.
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April 7, 2017 at 11:46 #7026Roscoe RoschéKeymaster
Ferrell,
Those are what we call ‘clipped ailerons’. It was part of an AD that was not fully understood at the time. It makes the plane handle like a truck instead of a sports car. You will want to get a new set and replace those or find another plane. Since then we have SI 61-01 which allows the AD 79-22-04 to be cancelled if your ailerons meet the profile.
Again, the plane will not feel like a Grumman, it will be heavy on the aileron forces and fly like a piper. I looked at your profile and there was no phone number to call.
FYI
Roscoe
513-519-7008 -
April 7, 2017 at 13:31 #7029FerrellParticipant
Roscoe,
Thanks for the reply; I will adjust my profile.
I’m certainly wanting the full Tiger experience; not the Piper experience. I guess we will find out how motivated the seller is…
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April 7, 2017 at 13:58 #7030Roscoe RoschéKeymaster
Ferrell,
Those replacement ailerons are $1,800 each, so that is $3,600 dollars for the two to change them out. The old ones have no value at all.
Holler if you need a set of ailerons. Install time is about 1 hour.
FYI
Roscoe
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April 8, 2017 at 05:56 #7031FerrellParticipant
OK, I am going to sound like an obvious newbie now but here goes.
When I read the AD, it looks like the clipping causes any AP to be required to be marked inoperable. There is a Century I on the plane but it has not been placarded or obviously removed. Am I reading the AD right?
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April 8, 2017 at 22:04 #7034Roscoe RoschéKeymaster
You read it right:
(d) If the modification in (c)(1) is accomplished, any autopilot system installed in the
aircraft
must be disconnected prior to further flight in a manner which will not permit use or reconnection during flight. Install a placard in full view of the pilot utilizing a minimum of 1⁄4 inch high letters with the wordingCheers
Roscoe
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