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Blue Bird BMS-390V HV Servo - 0.11s 22.3g 13mm

Product Code: BMS-390V
 (3 reviews)

Price: $26.31

1 in stock
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The Blue Bird BMS-390V is an excellent high voltage servo and is perfect for rudder and elevator on larger gliders. It has excellent torque, speed, and no free play.

Blue Bird BMS-390V Specifications
Body dimensions 29.0 mm wide x 13.0 mm thick x 30.2 mm high 1.14" wide x 0.51" thick x 1.19" high
Max dimensions 39.0 mm wide x 13.0 mm thick x 34.0 mm high 1.54" wide x 0.51" thick x 1.34" high
Stall torque (6V) 4.60 64
Stall torque (7.4V) 5.40 75
Weight 22.3 g 0.79 oz
Lead length 16 cm 6.3 in
Operating speed (6V) 0.14 sec/60°
Operating speed (7.4V) 0.11 sec/60°
Operating voltage 6.0V to 8.5V
Bearings 2 ball bearings
Gear material Titanium Alloy
Case material Strong Nylon
Motor type Coreless DC motor
Working frequency 250 Hz
Dead band 0.002 mS
Driver type MosFET
Digital Yes
Programmable No
Supplied accessories 2 plastic output arms, 1 arm retaining screw, 2 mounting clips, 2 screws, 2 rubber grommets
More details

Reviews 3  

 Review by:

Blue Bird BMS-390V HV servo

An excellent servo,used on the rudder of my carbonara sailplane, chosen due to the success I have had useing the kawatomo,now bluebird BMS-105HV 4.8gram servos.

 Review by:

Will fit perfectly in my Spitfire MKXIV, scale 1/5, as tailwheel servo. Thanks for quick shipping

 Review by:

The servos are very nice. They are currently being used in an electric 60" Edge 540 on the ailerons and have had 8 flights so far practising rolling harriers. The seem to centre well and come quickly back to 95% of the travel then have a damped return for the final 5%. I have not noticed any problems with this but the 8 flights have been in 20+MPH wind so difficult to assess.

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