S550 90 Degree Retracts

Allows the use of 90 degree retracts on S550 frame.

[Retracts](https://hobbyking.com/en_us/digital-servoless-retractable-system-1pc-54g.html)

Will need 6mm and 3mm tap and 2 6mm bolts

If the block was wider you could use the mounting plates that come with the retract instead of `Retract Mount`

Tap the plastic hole on the retract with 6mm. The holes on the block tap with 3mm to use 3mm fasteners.

The landing gear is a little further from the arm in the photo. That photo is with