OTOP

[Grow Pattern]

The screech occurs when the aileron goes up. I sealed the ends and the wing 
openings etc. It's a waste of time. It made no difference. If I raise both 
ailerons in landing config. it squeals all the way home....

Eric.


----- Original Message ----- 
From: "Bob Richards" <bob at toprudder.com>
To: <discussion at nsrca.org>
Sent: Monday, June 06, 2005 9:42 AM
Subject: Re: OTOP


> I've heard high pitch squeals coming from pilots
> before. Depends somewhat on what they ate the night
> before, as well as the "pucker factor" of the
> particular maneuver. In some maneuvers, such as the
> reverse avalanche, I believe the pucker factor can
> actually cause the pitch of the squeal to exceed the
> frequency limits of human hearing. You'll know this is
> the case when the dogs suddenly start howling in the
> middle of a Masters sequence.
>
> :-)
>
> Bob R.
>
> --- Keith Black <tkeithb at comcast.net> wrote:
>
>> Let me get this straight, does Tom make the
>> high-pitched squeal or does his plane? ;-D
>>
>> Keith
>>   ----- Original Message ----- 
>>   From: Verne Koester
>>   To: discussion at nsrca.org
>>   Sent: Sunday, June 05, 2005 9:56 PM
>>   Subject: Re: OTOP
>>
>>
>>   Greg,
>>   Tom Weedon almost always makes a high-pitched
>> squeal when he does a snap roll. I've heard a number
>> of composite airplanes do it as well. First one I
>> ever heard was Dave vonLinsowe's Fiber Classics
>> Giles. As I recall, it made the squeal in a number
>> of different maneuvers.
>>
>>   Verne
>>
>>     ----- Original Message ----- 
>>     From: GSailwhale at aol.com
>>     To: discussion at nsrca.org
>>     Sent: Sunday, June 05, 2005 8:23 PM
>>     Subject: OTOP
>>
>>
>>     I test flew the OTOP today and when I entered
>> any kind of snap roll the airplane made a real high
>> pitch squeal. It only does it in the snap roll.
>> Someone at the field said that they have heard of
>> the composite airplanes doing that because of the
>> hollow ailerons. That didn't seem to make sense to
>> me so I thought I'd pose it to everyone to see if
>> they have had this before in a composite airplane.
>>
>>     Greg Grigsby
>
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