|Blue Bird BMS-101DMG 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 / Speed @ 3.8V||0.6 kg.cm / 0.11 s/60°||8 oz.in / 0.11 s/60°|
|Stall torque / Speed @ 4.8V||0.8 kg.cm / 0.09 s/60°||11 oz.in / 0.09 s/60°|
|Stall torque / Speed @ 6V||1.0 kg.cm / 0.07 s/60°||14 oz.in / 0.07 s/60°|
|Weight||4.5 g||0.16 oz|
|Lead length||11 cm||4.4 in|
|Operating Voltage||3.7V - 6.0V|
|Gear material||Metal alloy|
|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|
|Supplied accessories||4 plastic output arms, 2 arm retaining screws, 2 mounting screws, double sided mounting tape, sticker set|
Review by: Robert BeswetherickExcellent like servo
I love this service! Dollar for dollar you can't beat it for DLG / F3K gliders. Killer centering, plenty of torque and fast. 5 stars definitely. Have bought 10+ and happy with every one.
Review by: françois
assez deçu par ces petits servos. pour un f3K le neutre est pas terrible et il manque du couple pour les ailerons
Review by: JustinNo complaints, little bit expensive
I have 4x of these in a Hawk DLG that I recently purchased. No complaints regards performance, they run fine on a 1S lipo, seem to centre well etc.
Only down side is that they are a bit expensive when you're used to paying $5-10 for a digital servo from Asia.
Review by: RayD
Works well as a replacement for the Dream Flight servos in a Libelle. The original took some moving and the existing extension lead needed to be moved slightly to cope with a slightly shorter servo lead. The servo is a bit buzzy, which I gather is common. I haven't used digitals much yet.
Review by: DonBlue Bird BMS-101DMG Digital Servo
V. small units and seem to OK for something that size. Good things - excellent on 1S Lipo pack as I haven't go thtem to brown-out yet. Bad things - (1) They do buzz a lot when at rest, which is probably not an issue but the noise can get annoying during long setup sessions! (2) They do not reliably centre e.g do a couple of full +/- stick movements and they do not entirely reliably go back to the same centre. However, for v.small metal-gear servos, they are OK
Review by: DougNo problems here
Put them in my Alula after a failed launch stripped the plastic servos I had in it. Haven't had any centering problems, it was a little difficult getting it to balance again but it works better than before now and the sensitivity on these is so much better than the analogs I had before (I kept one analog to give it a much needed rudder, already thinking of getting another one of these for that too).
I know it has the 5V warning but I've run them as high as 5.4V with no problem, and as low as 3.2V before they start getting the shakes.
Review by: DominicCentering, depend the position
I need to update the centering of this servo, actually its depend on what position it is. After trim, the centering will change, from 0.4 to 1.2 degrees of shift, depend on where it is. For your reference. D47 is better, always about 0.4 degree of shift.
Review by: DominicCompare to D47
Just bought one and working normal.
Compare to D47: Centering is a little bit better, but resolution is worse(cheap digital servo's behavior, sometimes moving smooth, sometimes jump a big distance).
Anyway, it's metal gear, feels no play and smaller size. Still need time to check its reliability.
Comment by: Anonymous
Should been a 1 star review not five
Review by: Anonymous
Same experience as above. On is perfect, the other buzzes constantly even with no horn attached.
Comment by: VladimirBlue Bird BMS-101DMG Servo
i purchased two , during test ( time is 5-10min) one of them servo time to time jammed, i am not sure ,that will working correctly during flight. other servo work good,i am regret ,50% money lost