|Blue Bird BMS-127WV Specifications|
|Body dimensions||23.2 mm wide x 10.0 mm thick x 23.0 mm high||0.91" wide x 0.39" thick x 0.91" high|
|Max dimensions||32.0 mm wide x 10.0 mm thick x 25.0 mm high||1.26" wide x 0.39" thick x 0.98" high|
|Stall torque (3.7V)||2.1 Kg.cm||29 oz.in|
|Stall torque (6V)||3.4 Kg.cm||47 oz.in|
|Stall torque (8.4V)||4.8 Kg.cm||67 oz.in|
|Weight||11.3 g||0.40 oz|
|Lead length||16 cm||6.3 in|
|Operating speed (3.7V)||0.11 sec/60°|
|Operating speed (6V)||0.07 sec/60°|
|Operating speed (8.4V)||0.05 sec/60°|
|Operating voltage||3.5V to 8.4V|
|Operating temperature||0 to 40 °C|
|Gear material||Metal alloy|
|Motor type||Coreless DC motor|
|Working frequency||250 Hz|
|Dead band/resolution||2 µs|
|Pulse width for ± 60º||(L) 900 µs - (0°) 1520 µs- (R) 2100 µs|
|Supplied accessories||2 plastic output arms, 1 arm retaining screw, 4 mounting screws, Blue Bird sticker|
|Optional accessories||Ply Frame for Blue Bird BMS-125WV|
Review by: Ross Cooper-SmithReally nice alternative for both 9g and 14g servos
I've been seeing good reviews online for Blue Bird, and picked up four of these to replace some 14g MG92B servos. Even on 5V they're a fast servo, not too noisy in operation, and they centre and hold very nicely.
And they definitely get bonus points for having the full specs on the box, and a small servo datasheet included showing you the dimensions, max angle throws, and operating pulse range.
Review by: Greg McGill (glidermang)Servo Purchase Order
When local sources for Blue Bird servos dried up, I turned to Hyperflight. As per usual, they responded quickly and efficiently. Even after shipping, their price is competitive. Note: people purchasing from Hyperflight need to realize that shipping worldwide is slow these days, no fault of Hyperflight.
Review by: DickReplacement for BMS-106HV
Had a Bluebird BMS-106HV fail in my AHI wing so I bought a couple of these as a straight replacement. They fit perfectly.
Ordered at 14:30 hrs and received them first thing the next day. Thanks Neil for your excellent service.
Review by: Nuno Duartenot as aspected.
the servo looks strong as expected but makes continuous noise. even at the neutral point. I hope it lasts long enough
Review by: anick
bought for a Snipe RES glider, for the "S", very powerful. probably on 1s will be used.
Review by: AnonymousGood servo for micro helis
Great cyclic servos for micro helis, can also be used on the tail if run on 8v. They will fit an Oxy2 but you need to sand about 0.3mm off the end of the lower mounting tab and make sure it's pushed up against the upper bearing block when installed so the end of the tab won't brush the screws on the maingear assembly. These servos run at 250hz maximum so make sure you change the servo frequency in the FBL controller setup before plugging them in.