Servor bracket was designed for the following servo's:- Graupner Servo DES 587 BB MG (19 mm x13 mmx 31 mm)
- Bluebird BMS-101 DMG (18.6 mm x 7.6 mm x 15.7 mm)
Other servo's with the same dimensions could also work, but were not tested.
It fits on a NMM keelbox, and can be locked in place with the front screw of the sailing servo.