T-REX 700 Tail Drive Gear Ratio With Main Rotor Speed Table:
Main Blades
Tail Blade
RPM approx.
Tail Drive Gear
Front Drive Gear
Drive Gear Ratio
700
106
2150 ~ 2200 RPM
102T
23T
8.46/1/4.43
700
106
2000 ~ 2150 RPM
104T
22T
8.46/1/4.73
700
106
< 1900 RPM
105T
20T
8.46/1/5.25
For your safety, please pay attention to the above 2200 RPM, incorrect excess 2200 RPM may result in damage to the helicopter or injury the porperty of others.
Instruction:
Specification:
Use for T-REX 700X/760X/800E. Brand new high drive gear ratio is designed especially for F3C & slow 3D flight with superior tail lock and precise flight performance. (Suitable for head speed at 1900RPM) To make sure to get the best effect, it must be used with whole set. Gear Ratio 1:5.25
105T M1 Autorotation tail drive gear set x 1 20T M1 Front drive gear assembly set x 1
This is the gear for slower head speed, if you like slower 3d check out the videos on youtube using this gear and see how nice it flies when done proper....