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Building Tips and technical articles. => ARF'S => Topic started by: Greg L Bahrman on March 31, 2010, 08:41:18 PM

Title: T-Rex controls
Post by: Greg L Bahrman on March 31, 2010, 08:41:18 PM: Anyone have experience with the stock control horns in the T-Rex kits ???....Like, how do they perform or I should say how does the plane perform ???
Title: Re: T-Rex controls
Post by: Willis Swindell on April 01, 2010, 06:32:47 AM: I think they are first class especially the adjustable elevator control horn. Just my opinion.
Willis
Title: Re: T-Rex controls
Post by: Steve Fitton on April 01, 2010, 01:24:29 PM: Worked fine for me. I do think Brad recommends a different throw height-see his T Rex comments.
Title: Re: T-Rex controls
Post by: John McFayden on April 01, 2010, 06:16:39 PM: I asked Brad for the dimensions and he repied as follows:

I use 1.25" flap horn.
1" elevator horn.

4 inch bellcrank with pushrod hole at .9".
Title: Re: T-Rex controls
Post by: Bradley Walker on April 02, 2010, 12:24:31 PM: The stock controls are fine. Better than any CL ARF so far.
Title: Re: T-Rex controls
Post by: Greg L Bahrman on April 02, 2010, 08:38:55 PM: Just so we are clear, I was really asking about the performance of the plane with the stock pushrod positions. Probably was not too clear in my first post....Thanks
Title: Re: T-Rex controls
Post by: Bradley Walker on April 03, 2010, 09:07:00 AM: Quote from: Greg L Bahrman on April 02, 2010, 08:38:55 PM
Just so we are clear, I was really asking about the performance of the plane with the stock pushrod positions. Probably was not too clear in my first post....Thanks

Just make sure the flap to elevator controls are 1 to 1.
Title: Re: T-Rex controls
Post by: Willis Swindell on April 07, 2010, 06:46:02 PM: What happens if the elevator moves more then the flaps?
Willis
The reason I’m asking is the plane was nose heavy and I added some extra elevator Then I found out it was nose heavy and added tail weight but didn’t change the controls. I think the plane flies Great but wonder what the difference would be one to one.
Title: Re: T-Rex controls
Post by: dankar on April 11, 2010, 03:09:16 AM: Brad,
Cool looking airplane. I have a Rusler/ Belko .75 coming amd this looks real good.
Cheers,Dan
Title: Re: T-Rex controls
Post by: john e. holliday on April 11, 2010, 07:18:06 AM: Quote from: Willis Swindell on April 07, 2010, 06:46:02 PM
What happens if the elevator moves more then the flaps?
Willis
The reason I’m asking is the plane was nose heavy and I added some extra elevator Then I found out it was nose heavy and added tail weight but didn’t change the controls. I think the plane flies Great but wonder what the difference would be one to one.

I think that would be better than more flap to elevator. H^^
Title: Re: T-Rex controls
Post by: Bradley Walker on April 11, 2010, 01:45:34 PM: Well, it depends on the weight, but it has a lightning corner with one to one.

It was designed for one to one. If you require more elevator, you most likely the CG is pretty far forward.
Title: Re: T-Rex controls
Post by: stunt1 on April 16, 2010, 03:39:45 PM: I'm using mine right out of the box with everything that comes with the ARF and it is fine. I always build slop into my elevator controls but this has all the ball links with no slop and it's fine.
The airplane really grooves well. The only thing that I would wish for is a cowl that would let you get your finger on the venturi to prime the motor rather than have to turn it over to start. But hey, if it's goopd enough for Bill Werwage (He always flips his planes over to start) I guess I can live with it.
I have about a dozen to 15 flights on mine and I have to say I'm really enjoying it.

Cheers,

Bob Lampione