Control surface travel ranges

[Mike Davis]

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To: <murphy-rebel@dcsol.com> (Murphy Rebel)
From: Bob Patterson <bob.patterson@canrem.com>
Subject: Control surface travel ranges
Message-Id: <E0zWAiI-0003km-00@mail2.toronto.istar.net>
Date: Wed, 21 Oct 1998 22:42:59 -0400


Thanks for jumping in, Tim !! You have the answers everybody was
looking for !!!

I guess the 7" up corresponds to about the 27 + degrees that we are
shooting for ...

Thanks again !!!
.....bobp
---------------------orig.----------------------------------------
At 05:32 AM 10/21/98 +1300, you wrote:

Tim,

I hope you dont mind me butting into your conversation with Bob, but I have
just been thru' all this.

On checking with Murphy they OK'ed my figures.

Elevator up 6"
Elevator down 5"

They did say 7" up would be better, but 6" is OK.

Rudder left and right 6"

Any more interferes with the elevator.

Aircraft flies like a dream!

Alister Yeoman yeoman@voyager.co.nz


----------

From: Tim Carter <tlcarter@email.msn.com>
To: 'Murphy Rebel' <murphy-rebel@dcsol.com>
Subject: RE: General questions - long answers
Date: Wednesday, October 21, 1998 1:58 PM

Bob:

This e-mail brings up something I noticed...maybe you can help

clarify....

When I had all of my tail-group set up on the workbench, I noticed that a
fair amount of up deflection on the elevators would cause the elevator

horns

and pushrods to interfere with the rudder when deflected moderately left

or

right.

Can you tell me...

From the horizontal, how much up and down deflection does the elevator

travel?

From the vertical, how much left and right deflection does the rudder

travel?

I can see that from my bench test, if I have a strong flare, with a good

bit

of cross control, that one elevator horn will be precariously close to

the

skinned surface of the rudder.

I have re-checked the alignment of my elevator horns relative to the
elevator itself, and they are as indicated in the construction manual.

Comments?

Tim
#438R

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