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Flybarless Rotor Head Systems > Trex Push-Pull to Direct linkage question
 
 
tcfrum323
Senior Heliman
Location: Los Angeles CA

I was wondering if anyone knew if I were to remove the push pull setup on the 600E, what would the proper length of the servo arm need to be. I've seen the Logo manual for the 6003d and it was 16mm for the flybarless setup but I'm thinking it might be different for the Trex 600.

Trex 600e, 6003d soon.
05-27-2008 12:51 PM
 
 
"Cam"
Veteran
Location: Asia

I'm about to do this on a large heli. I can't fit all the levers in with the motor and batteries. SO. I'm going to connect a servo up and hold it next to the chassis, move the stick a bit and see if the arm gives enough travel or not!

Rule of thumb: on a 120 CCPM, measure the distance between 2 of the ball links on the lower swash plate, half that should be the length of your servo arm. Any shorter introduces interplay. Use good servos!
05-27-2008 02:35 PM
 
 
tcfrum323
Senior Heliman
Location: Los Angeles CA

That's a very interesting method. I'll give it a try when I get home. I'm using Futaba s9451s for the cyclic and they should be good enough imo.

Trex 600e, 6003d soon.
05-27-2008 10:13 PM
 
 
JohnR
Heliman
Location: Dallas

Me and some friends converted 600Es last year to DCCPM and used 24mm-25mm arms.

John
05-27-2008 10:50 PM
 
 
tcfrum323
Senior Heliman
Location: Los Angeles CA

JohnR,

How much pitch were you guys getting with the 24-25mm arms?

Trex 600e, 6003d soon.
05-27-2008 10:58 PM
 
 
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Flybarless Rotor Head Systems > Trex Push-Pull to Direct linkage question
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