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View Full Version : help with t rex 450 sa


vboy55
02-21-2008, 05:22 AM
well I whent out and bought a t rex 450 sa put it all togeather and it spins one directin or the other i have tried different setting on the gyro (http://www.rcuniverse.com/buynow/keywordclick.cfm?bid_id=5302) but it is doing the same thing im using the dx6i tx and a align rce 550 with the s75 servosi just cant seen to get the tail to hold can anybody help me?

CHELLIE
02-21-2008, 05:32 AM
well I whent out and bought a t rex 450 sa put it all togeather and it spins one directin or the other i have tried different setting on the gyro (http://www.rcuniverse.com/buynow/keywordclick.cfm?bid_id=5302) but it is doing the same thing im using the dx6i tx and a align rce 550 with the s75 servosi just cant seen to get the tail to hold can anybody help me?

Hi :ws: If the heli is in ground affect, on the floor to about 1 foot high, the gyro does not work very well, too much turbulance from the down thrust of the main blades, you need to get the heli up about 2 to 3 feet to test a gyro adjustment, also, put the gyro as close to the center pivot point as you can, {the main blade shaft }Take care and have fun, Chellie

birdDog
02-22-2008, 01:38 AM
What motor and pinion set up you running. Headspeed pretty high? Maybe your not getting enough tail rpm? Check finless bobs set up vids. http://www.helifreak.com/showthread.php?t=11373&page=145

theecoop
02-23-2008, 03:40 AM
Also did you setup your tx?