Sovereign Tech Tandem-5 Chinook to ACH-47A Conversion

Got the mechanics assembled. Overall quality is pretty good with minimal lash between the 2 rotors. Not much clearance on the back side of the servo arms, so any excess thread length on the ball links needs to be trimmed, especially for the servo closest to the motor.

Besides the vacuformed fuselage, my only real gripe is the rotor heads. While the spindles are independently damped, they don’t allow much movement in flapping at all. They have stiff dampers and very little movement before running into mechanical interference.

I attempted to swap out Goblin 570 3 blade heads to fix this, but that proved to be impractical without excessive custom parts. For now, I’m planning on modifying the stock heads to allow more flapping movement.