Here are some new configuration files that will help you with setting up your Spartan DS-760 gyro on your 250.
T-Rex 250 (Futaba 3154) New!
T-Rex 250 (Align 420) New!
T-Rex 250 (JR DS290G) New!
If you use a DX-7 Transmitter and your gyro sensitivity (gain) is configured to use the gear channel via end points (ATV’s), you should set this value initially at 25; this is a good starting point, but it will need to be adjusted. Small helicopters, such as the T-Rex 250 are too “picky” with the gyro settings based on the specific setup, tail resistance, tail blades used, etc. Simply start at 25 and fine tune from there. Also, your ATV for the rudder (pirouette speed) can be set at 110 to 115 to start. I have mine set at 125, but that is a little fast for some people. An occasional tail bounce during hard stops is normal with a heli this size due to the “tennis racket effect”. However, this should not affect the ability of the gyro to hold the tail during fast backwards as well as sideways flight.
WARNING!
These settings and configuration files work well for me. However, depending on your flying style you might need to play with dead band as well as other settings. This gyro is the most technologically advanced gyro I have ever flown; the possibilities for configuration are endless! Also, if you are using a transmitter other than DX-7, my gain settings and rudder ATV’s above WILL not be suitable. Always start with a middle number and adjust up and down accordingly. You want to have the most holding power without a tail wag, so you can always go up high with your gain and start dropping it a couple of points at a time until you get to the right number.
For more help with your Spartan gyro, or to download files for other helicopters, please visit my Spartan Setup Tips page.
