Trex 450

My first helicopter. Upgraded from plastic version with carbon frame.

Then metal head .....grip.....mixer arm.....swashplate....

DIY the V2 like thrust bearing main blade grip. The pitch response is more linear and accurate. Later took apart due to the thrust bearing will jam dead the cyclic servo. Somehow unknown mechanism even the grip is silky smooth. It happens 2 times and the second time is a brand new 65MG. So unlikely a coincidence.

DIY longer copper mixer washout. The slop is gone.

The tail is upgraded to a NIX tail gear box, with a smaller load (balanced metal grip) on rudder servo and larger travel. NIX tail gear box must use carbon blade to get solid tail lock.

Now with 4S and the cyclic response is magic at HS 3000rpm.

Looking for hollow 5mm shaft.

Current setting:

AR6100

HS65MG ....6V

401, 9650...6V

4S 1500mA

450TH 3000kv@11T, HS 3000

DIY modified paddle 3.2g

Super Hardened Head dampener DIY from PU

NIX tail box.

CC Pheonix 35

BEC 3-5A, cheap $8 ,Without the BEC,cc 35 on board BEC will melt the heat shrink even @3s

Eagletree says 300W

Cyclic fast like hell !

Finally, it was powered with 3600kv @4s/11T