|Blue Bird BMS-125WV+ Servo Specifications
|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
|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)
|Stall torque (6V)
|Stall torque (8.4V)
|Operating speed (3.7V)
|Operating speed (6V)
|Operating speed (8.4V)
|3.5V to 8.4V
|0 to 40 °C
|2 ball bearings
|Coreless DC motor
|Pulse width for ± 60º
|(L) 900 µs - (0°) 1520 µs- (R) 2100 µs
|2 plastic output arms, 1 arm retaining screw, 4 mounting screws, Blue Bird sticker
|Ply Frame for Blue Bird BMS-125, Integrated Drive System/Mono for the Blue Bird BMS-125WV, Frame with bearing for the Blue Bird BMS-125WV
Review by: SimonExcellent little servos
Excellent little servos, look well made. Have used them in anger yet as their intended model is not started yet. However, have hooked the servos up to a receiver and done an initial test, all looks good
Review by: Frederik LattnerPowerful but unreliable
The two servos I ordered were great. Really small and still powerful. Was a fairly tight fit into my Malibu 1m DLG, but that was expected.
Unfortunately, after a couple not so soft landings and plugging them in and out a few times, one stopped working. Since I live in Germany, ordering another one from this store was out of the question (high shipping cost, tax, fees, Ö). I would've liked to get a similar one again, but couldn't find one anywhere.
Review by: ClintBluebird servos
Havenít tried as yet but great service and support over the years Iíve done business with you.
Review by: Chris AdamsMighty Mini
Half the price of the MKS6100HV and better in every other way too IMHO.
Currently doing duty in a Nan Shadow F5J driving the tail surfaces.
Buzz free, accurate centering, easy to fit and servo horns are a good fit too.
Recommended. Will buy again, thanks Hyperflight.
Review by: PFNice Servo
The servo was delivered quickly and well packed, something which I have become accustomed to with Hyperflight. The servo runs smoothly and centres well so I'm very pleased.
Review by: Anonymous
Bought 6 for a Nan Omega v2 worked fine centered well adequate torque. However one failed during model set up and had to be returned, hence the three stars.
HyperFlight reply: Sincere apologies for the inconvenience, but we wouid like to add that we did give a 50% refund for the returned servo. Not a full refund as the servo lead had been shortened and the servo showed signs of wear.
Review by: Justin MellorGreat Servo
Excellent servos, good centering, no/minimal backlash, reliable, wide voltage range, good value.
Review by: MarkDecent servos, fast and precise
Used these on my bicopter build. They were fast and accurate and did a great job until I had a bit of a crash. Both now have damaged gearboxes unfortunately. I'm hoping there's a service kit!
Review by: Mike hydeGreat servos
Used these servos in a number of installations. Great value and a reliable performer
Review by: Ray StaerckGreat Servos, great aervice
Used Hyperflight a few times and they are now my go to store for good value, great spec equipment. Nothing is too much trouble for these guys. Highly recommended.
Review by: DavidBlue Bird BMS-125WV Servo
I had two '105' old versions fail when overstressed trying to open jammed undercarriage doors on my SHK. My carelessness. Nevertheless the new ones work fine and appear better overall.
Review by: NikolaGREAT!!!
Got them in my F5J plane (Crozilla) and works perfect now after 25 hours of flight.
Review by: Gary BlakeGreat servo but watch out
If you invert your power source you'll not just damage these you will fry them as they have no protection. I just lost 2... ;-( Own fault I know.
Review by: david bradburyblue bird bms 125 wv
update on previous review fitted in flaps no response after landing smoke coming from servo and fitted new servos and worked great servo problem i think or just unlucky
Review by: Pieter
The servo is nice but has some play, the mks DS6100 does not have that so I go for the mks.
Review by: Mr Michael L Dwyer
I haven't got to use these servos yet. I bought 2 of then and one died after 6 cycles on the tester didn't get anyway near the plane.
Waiting for a replacement to arrive.
They look very good, at least it had the decentness to die on the table.
Buying from the opposite side of the planet is a bummer when things don't go to plan.
Comment by: Philip
Usual good advice and prompt delivery
Review by: Peter Mather
Excellent service and communication - 10 days order-to-door from UK to Australia. Have only tested one so far, but looks the goods and the price is right. Thank you!
Comment by: KelvinServo
As usual good service
Review by: David Bradburyblue bird bms 125 and 126
bought several of these not fitted but appear reasonable quality Service as usual perfeect
Review by: Ian W
Early days yet, thanks to the plague, but the performance so far is excellent for such a compact, moderately priced servo. The service from Hyperflight excellent as ever.
Review by: Anonymous
Four servos delivered, without fuss, on time and whilst not yet fitted in to model I am very pleased with them. Packaging exceptional! I have no reason to believe the servos will perform to the same standard.
Comment by: Frank D.
Work very good and exact.
Review by: Mick stiff
Great little servo I have installed in model but not flown yet good price
Review by: Anonymous
Great looking servo, excellent value and service from Hyperflight
Review by: Justin MellorBlue Bird BMS-125WV Servos
These servos are accurate and good value for money.
Review by: RonG
Used Blue Bird servos in my F3K and have been more than happy with them so decided to use these in my newly purchased Osprey F5J. They behave implacably.
Review by: Nesan
good and fast servos! very fast shipping I will keep buying from Hyperflight. Thumps up