Blue Bird BMS-101DMG Servo – 1.0Kg.cm 0.07s 4.5g 8mm

The Blue Bird BMS-101DMG is a tiny metal gear servo from Blue Bird with a digital amplifier, to maximise resolution and holding torque. This servo is strong, powerful and has a very tight geartrain with little or no free play. Featuring low weight, a 7.6 mm thin case and one kg-cm or torque this is an excellent servo for DLG / HLG / F3K / F3P / 3D EP RC models.

The 7.6 mm body thinness ensures the Blue Bird BMS-101DMG will fit in very thin wings, making it a great servo for 1m discus launched gliders and small slope soarers. Its light weight, high speed and great precision makes it well suited for F3P and other small aerobatic/3D indoor and outdoor RC models.

The BB BMS101 DMG is supplied with four output arms, mounting screws, optional mounting tape, and a fun sticker set. The large arm is 5 cm diameter (2.5 cm largest hole radius) making it excellent for F3P aileron control.

The Blue Bird BMS10DMG is in many ways similar to the Ripmax SD100, and is a good alternative to this servo for those using NiMH batteries or 1S LiPo batteries. Its main benefits over the SD100 and the Dymond D47 are its metal geartrain and digital controller, giving it greater toughness, holding power and resolution. For applications a 2S LiPo battery we recommend the HV version of this servo: Blue Bird BMS-101HV.

Blue Bird BMS-101DMG Servo Specifications
Body dimensions	18.6 mm wide x 7.6 mm thick x 15.7 mm high	0.73″ wide x 0.30″ thick x 0.62″ high
Max dimensions	26.6 mm wide x 7.6 mm thick x 19.5 mm high	1.05″ wide x 0.30″ thick x 0.77″ high
Stall torque (3.8V)	0.6 Kg.cm	8 oz.in
Stall torque (4.8V)	0.8 Kg.cm	11 oz.in
Stall torque (6V)	1 Kg.cm	14 oz.in
Weight	4.5 g	0.16 oz
Lead length	11 cm	4.3 in
Operating speed (3.8V)	0.11 sec/60°
Operating speed (4.8V)	0.09 sec/60°
Operating speed (6V)	0.07 sec/60°
Operating voltage	3.7V to 6V
Operating temperature	-20 to 60 °C
Bearings	Plain
Gear material	Metal alloy
Case material	Nylon
Motor type	Coreless DC motor
Working frequency	333 Hz
Dead band/resolution	2 µs
Pulse width for ± 60º	900 – 2100 µs
Digital	Yes, 12 bit A2D
Programmable	No
Position feedback	Potentiometer
Supplied accessories	4 plastic output arms, 2 arm retaining screws, 2 mounting screws, double sided mounting tape, sticker set
Optional accessories