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Author Topic: Trim Question  (Read 1148 times)

Offline Balsa Butcher

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Trim Question
« on: February 29, 2008, 02:02:44 PM »
I suspect that this has been covered before but I'll ask anyway:
When the completed model is suspended from its leadouts to set the initial lead-out position - what are you looking for?  What degree of offset hang is acceptable for a starting point?  I have some models - one in particular that I need to check this on - partially to compensate for (I suspect) mounting the engine with inadequate built in side thrust. Thanks, (a vote for trim section in forum here)  y1
Pete Cunha
Sacramento CA.
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Offline Bill Little

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Re: Trim Question
« Reply #1 on: February 29, 2008, 02:51:35 PM »
I suspect that this has been covered before but I'll ask anyway:
When the completed model is suspended from its leadouts to set the initial lead-out position - what are you looking for?  What degree of offset hang is acceptable for a starting point?  I have some models - one in particular that I need to check this on - partially to compensate for (I suspect) mounting the engine with inadequate built in side thrust. Thanks, (a vote for trim section in forum here)  y1

Aw, Pete!  We can handle trim questions here for now! LOL!!!!!!  (actually, I don't know what Robert's limitations are for adding a new section with all the ones we already have)

A slight nose down attitude is all we are looking for.  How much?  Not real sure, all I hear is the TLAR method.  :##

Remember, the top dogs promote 0-0-0 set ups, no engine offset at all.  The more the plane crabs, the worse it maneuvers, and the more line tension problems you will experience in maneuvers..  and especially over 45*

Bill <><
Big Bear <><

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James Hylton Motorsports/NASCAR/ARCA

AMA 95351 (got one of my old numbers back! ;D )

Trying to get by

Offline Balsa Butcher

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Re: Trim Question
« Reply #2 on: February 29, 2008, 08:22:48 PM »
Thanks Bill - Leadouts adjusted, they were off quite a bit which explains somewhat my tension (or lack thereoff) issue.
Pete Cunha
Sacramento CA.
AMA 57499

Offline Clint Ormosen

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Re: Trim Question
« Reply #3 on: February 29, 2008, 10:37:15 PM »
Thanks Bill - Leadouts adjusted, they were off quite a bit which explains somewhat my tension (or lack thereoff) issue.

Pete, is this the new Smoothie you're messing around with?
-Clint-

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Finding new and innovated ways to screw up the pattern since 1993

Offline Balsa Butcher

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Re: Trim Question
« Reply #4 on: March 01, 2008, 08:48:05 AM »
You guessed it!  8)
Pete Cunha
Sacramento CA.
AMA 57499

Offline Will Hinton

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Re: Trim Question
« Reply #5 on: March 01, 2008, 03:27:08 PM »
Just a quick comment here on the 0-0-0 setup;  remember that the airplane is already trying to fly in a straight line and we are refusing it that possibility by restraining it with the lines.  Therefore the 0-0-0 setup is already creating an "offset" situation as far as the ship is concerned.  With that said any more artificial offset will create excess drag by comparison and result in draining more of our precious power, hence an actual line tension loss.
This should trigger some discussion!!!! #^ #^ #^ #^ #^
Will
John 5:24   www.fcmodelers.com

Offline Bill Little

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Re: Trim Question
« Reply #6 on: March 01, 2008, 03:43:34 PM »
Just a quick comment here on the 0-0-0 setup;  remember that the airplane is already trying to fly in a straight line and we are refusing it that possibility by restraining it with the lines.  Therefore the 0-0-0 setup is already creating an "offset" situation as far as the ship is concerned.  With that said any more artificial offset will create excess drag by comparison and result in draining more of our precious power, hence an actual line tension loss.
This should trigger some discussion!!!! #^ #^ #^ #^ #^
Will

Actually, Will, did you read my post on the Tomahawk??  It started out with inset.  Took Aaron flying it to bring it to my attention.  5-6 flights by me in pretty windy, turbulent air, then he flies it.........................
Big Bear <><

Aberdeen, NC

James Hylton Motorsports/NASCAR/ARCA

AMA 95351 (got one of my old numbers back! ;D )

Trying to get by


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