cyclic servos
Cyclic Servos for the HK450 heli
I use the HXT900 servos

You can’t get a cheaper or same priced servo that will do the cyclic and centre perfectly without jitter and have the speed that these little beauties have. When they are destroyed in a crash I replace them, I don’t bother repairing them, that’s because they are so cheap. The resolution is good for the cyclic control.
Let’s look at the specs
Size : 21×12x22 mm / 0.74×0.42×0.78 in (Slot perfectly straight into the HK450 frame holes)
Voltage : 3v ~ 6v (perfect for all standard ESC’s BEC’s)
Weight: 9g / 0.32oz (nice and light weight for the power they deliver)
Speed : 0.12 sec/60(4.8V) (OK on speed don’t want slower than this)
Torque : 1.6 kg-cm (only need 1kg for cyclic)
Working Temp : -30C~60C (works from snowy to desert conditions)
Teflon Bushing, 15cm wire, coreless motor (perfect for 450 class heli)
Servo arms & screw included (you get a good mixture of bits)
Regards
Elias Gourvelos (EatAtJoes)