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Blue Bird BMS-101HV Servo - 1.2Kg.cm 0.06s 4.5g 8mm

Product Code: BMS-101HV
 (71 reviews)

Price: $20.78

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Description

The Blue Bird BMS-101HV is a tiny metal gear high voltage servo from Blue Bird. This great 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 over one kg-cm or torque this is an excellent servo for DLG / HLG / F3K / F3P / 3D EP RC models where the RC is run directly from a 2S LiPo battery.

The 7.6 mm body thinness ensures the Blue Bird BMS-101HV 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 HV 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 BMS101HV is in many ways similar to the Ripmax SD100/Dymond D47, and is a good alternative to this servo. Its main benefits over the SD100 and the Dymond D47 are its greater speed, metal geartrain and digital controller, giving it greater holding power and resolution. For applications not using a 2S LiPo battery we recommend the two LV versions of this servo: Blue Bird BMS-101DMG and Blue Bird BMS-101AMG



Blue Bird BMS-101HV 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 21.5 mm high 1.05" wide x 0.30" thick x 0.85" high
Stall torque (6V) 0.9 Kg.cm 12 oz.in
Stall torque (7.4V) 1.1 Kg.cm 15 oz.in
Stall torque (8.4V) 1.2 Kg.cm 17 oz.in
Weight 4.5 g 0.16 oz
Lead length 15 cm 5.9 in
Operating speed (6V) 0.08 sec/60°
Operating speed (7.4V) 0.06 sec/60°
Operating speed (8.4V) 0.055 sec/60°
Operating voltage 6V to 8.4V
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 µs
Digital Yes
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

Reviews 71  


 Review by:

BMS-101HV servo

Great wee servos for 2metre models, 4 of them in my 2M ELI from Hyperflight. They fit and work well.


 Review by:

Easy to order and arrived well packaged very quickly


 Review by:

Great DLG servo

I picked up 4 of these little metal geared servos for a new DLG I've been building. They are smaller, and about half the price, of a Kst-06, so that makes installation in a small nose much easier. They seem to center very well, and are capable of running on my 2S Lipo. I will be using this servo in my next build.


 Review by:

Great servo!

Great products and the best service!


 Review by:

Bluebird 101HV

Great small servos. Can use with Li-po and they are metal gear. Used in multiple planes without issues. Highly recommended.


 Review by:

A nice little servo, bought to replace one of the same type which had developed inaccurate centring after a rough life. Not up to KST standard, but good for the price.


 Review by:

Good lower cost servo

Tried the BB 101HV servos in my Mini Dart2. They are very compact making them a good fit for a small DLG. Centering is ok but not great as you might expect from an economical servo; however, the centering is good enought for my MD2.


 Review by:

Blue Bird BMS-101HV Servo - 1.2Kg.cm 0.06s 4.4g 8m

Small and light server format. Very precise and the 1.2 Kg strength is great for more rigid push rods and sleeve use.


 Review by:

Tiny HV digital servos. Unique to find!

Small digital servos for using with 2S Lipo. They have been fitted to operate gear doors on a turbine aircraft and do an excellent job. They are tiny but powerful for their size.


 Review by:

These servos are very well made and reliable. Very small and light. I’ve used them on Elf and Pug gliders, with 2S batteries.


 Review by:

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

Light but strong servo which works very well with spring tension rudder and flap control. Metal gears ensure good lifespan of the servos.


 Review by:

Greitas pristatymas, geros kokybes .


 Review by:

MM

Ok


 Review by:

Nice little servo, gear train is robust and the price is right. I treat them rough on a wingeron slope soarer. After a beating the top bearing gets a bit sloppy and the output can slide on the shaft. This still requires a lot of force and won't be a problem if you aren't regularly digging your plane out of the side of the hill. Yet to burn one out or strip a gear.


 Review by:

Perfect micro servo

I got this to fit in my Orlandoo Hunter 1/32 scale rc trophy truck (OH32X02), just required a little training on the truck chassis, but fits perfectly and being metal geared, it’s much stronger than the stock servo.


 Review by:

BMS 101HV Servo - 1.2Kg.cm 0.06s 4.4g 8mm.

Excellent - top quality. Bought to use with 2S
havent used them in anger yet.


 Review by:

Blue Bird 101HV servos

Just the job to fit in my BOO German ultra small slope soarer using a 2s lipo


 Review by:

Blue Bird 101HV servos

Just the job to fit in my BOO German ultra small slope soarer using a 2s lipo


 Review by:

Blue Bird BMS-101HV Servo

Ordered two of these for an extremely narrow fuselage and are perfect for the job. Useful for 2S operation too. Excellent service and many thanks.


 Review by:

Bought 4 of these for a Stiletto being converted for the slope in light to med winds so I can run on 2s without a BEC, they seem ok but do seem to get hot even on the bench when checking the programming. Time will tell.


 Review by:

Blue Bird BMS-101HV Servo

Great little servo that is the only adequate replacement I could find for a reasonable price to handle 2s battery, and replace a Ripmax SD100. Size is a little smaller, and it seems about as powerful so it's perfect for the job (rudder on a Flitz 2 DLG)


 Review by:

excelent service I use this servo for my servo diskbrake produktion used in turbine jets and it fits perfect.


 Review by:

Customer service brilliant!

I don't get too concerned if a supplier occasionally has a product that isn't as good as expected. I would be concerned if they didn't fix it when asked.
In my case Hyperflight fixed it without me asking for a fix!!! Absolutely superb attention to customer satisfaction. I wasn't expecting a replacement part, but Neil spotted I had an issue and sent one anyway!


 Review by:

Little Blue Bird HV MG servos

I bought four, needed two. One failed during the install, which may have been to to binding on the covering slightly. It overheated very quickly. The replacement seem to have variable travel, and I've had to readjust the throws many times.


 Review by:

BlueBird HV servos

These servos is highly recommended. Just buy them if you are going to set up a small DLG like the Hawk. They are strong, fast, light and runs on a 2S lipo.


 Review by:

Bluebird bms-101hv

Great little servo,got these for my Shaka slope soarer, they centre well. Put 2 of these in my pulsar 2.5 tail for rudder and elevator and have performed perfectly for the last 2or 3 years without any problems and as always great service from Hyperflight.


 Review by:

Bluebird BMS 101 HV Servos

I was very disappointed with these servos

I ordered 4 for my ERES

1 failed prior to installation and now another one has failed on the planes maiden flight.


 Review by:

Blue Bird servos

Excellent product at a reasonable price and exceptional service from hyperflight.
I would highly recommend them for all your needs.


 Review by:

Light weight & inexpensive

Bought 6 of these mini servos for a Horesji Geronimo 2.5m. Perfect fit & quite responsive.


 Review by:

Quiet, fast, smooth - perfect

These are the best I've tried. No noise, very low power draw. Fit and forget.


 Review by:

Great servo at a reasonable price. Accurate and fast in action


 Review by:

Great servo at a reasonable price. Accurate and fast in action


 Review by:

BMS-101 HV

I have several of these in regular use without problems. For the economical price, sound metal gears and the ability to run directly on 2s lipos . This voltage also gives a useful increase in torque and speed.


Comment by:

tres mauvais retour au neutre.La linéarité n'est pas acceptable.


 Review by:

Super little servo, delighted with it.


 Review by:

Super servo

Great little servo. I’ve ordered multiples of this servo and never had issue with them. Super light, super small and super torque. Though more expensive than other options it is well worth putting quality, reliable components in to your aeroplanes. Super despatch and packaging.


 Review by:

All tested fine

I purchased 4 of these little servos, they are really tiny, but powerful for their size. I haven't used them in my model yet (going to use them in a voodoo), but initial testing of the servo's seem all good. I think they are good value for the money. Great speedy service from hyperflight.


 Review by:

I used two of these in an Elf, having previously used two, together with D100s, in a Sapphire electro glider.
All have performed well. Power is enough for the larger model, and no problems have been apparent with centering. If you like using 2 cells they are a good choice IMHO.


 Review by:

Not impressed at all

Out of the 3 I ordered 2 worked okay and the other just did not run right from the beginning. As it had no smoothness to it's running I used as a spoiler servo. Once installed and under a small load, on a 7.4V system, one-by-one they all burnt out. Not good.


 Review by:

this servos are ok for that price, not the best!


 Review by:

Great servo for the price had no problems at all I run on 2 cell LiPo with no bec.
Great packaging and fast delivery


 Review by:

Great servo for the price . I run mine on 2 cell LiPo with no bec . Work great good price . No problem at all . Great packaging and quick delivery as allways.


 Review by:

these servos work very well depending on the quality of your transmitter and receiver.
have another set ready to put in Elf dlg.


 Review by:

Blue Bird BMS-101HV Servo

Fast / reliable service makes Hyperflight fun to deal with. Servo's work a treat.


 Review by:

Not as expected

2 servos for v-tail on Art-Hobby Zuni. One of the servos is behaving normal, the other is slow and sluggish. Reordered the same servos to see if problem reoccurs.


 Review by:

Servo backlash

The gear train has several degrees backlash. You can see the output spline rock a little. They are small and light.


 Review by:

ok but little use yet


 Review by:

The price is right

Pros: Impressively small, light and quick. Usually centre well but on the odd occasion not so.
Cons: Rough as guts.. far from a smooth servo. Resolution seems terrible, doing trims, you get nothing, then a large step.. One roughish landing has rendered one useless, it flutters at a certain position.
Overall still value for money as they are a $25 aus servo so you can't expect too much. I did expect better though..


 Review by:

Arrived not working

Ordered 2 of these and one is not working hsve rmdiled seller to advise of this


 Review by:

great servo very powerfull and precise


 Review by:

very great servo!light, small,no getrain and powerfull


 Review by:

Very neat little unit,fitted in my Boom dlg 4 in the pod with room to spare. Good power good centering.


 Review by:

no-no-no

First time perfect.
After 5-6 months stop one after the other.
After 1 year: 1ok, 3 dead.


 Review by:

Reliable servo.

Have used these servos for over 2 years. They are great. I’ve used them in 1m and 1.5m scratch built DLG’s on all control surfaces. Also used them on 1.3-1.5m eRES. Reliable, good centering, precise and with ample torque. Light and small with high voltage capability. Would be a good addition if Blue Bird decided to manufacture an all metal gear, high voltage 101. ???


 Review by:

Super servo

These are super little servos. I have used many of these servos in various installations: DLG; small power assisted gliders and spoilers on 1.5m E-Res. Great reliable performance for such a small, light servo. A perfect subsitute for Ripmax SD100. Dispatch and packaging is Neils usual exempler. Thanks.


 Review by:

Tiny, precise, powerful, lightning fast: what could be better at this price? Perfect for my yet-to-fly MadRES, where space is a little tight. And thanks again, Neil, for the superb service.


 Review by:

Good servo, like SD100(ripmax),but small size, flight test in progress


 Review by:

Très bons produits

Bonjour
Ces servos sont montés dans un F3K. Ils sont légers, puissants, rapides et précis alimentés en 2S.
Leurs petites tailles est un atout pour ceux qui n'ont pas trop de place dans le fuselage.
Je n'ai pas encore testé sur le long terme la météo n'étant pas des plus favorable au vol en ce moment. Ils ont été livrés très vite et bien emballés.


 Review by:

Prompt delivery as always, when they came into stock. Needed a small servo for a project with a small amount of room. Have not used as yet will follow up later.


 Review by:

A fast and strong servo!

The speed on 8v is just amazing. Quite string too, and hardly any slop and good centering. Good value and excellent servo. The power requirement is quite high and more than others, like Ripmax SD100 for example. I've use them for a F3P model on 2S.


 Review by:

See previous reviews.


 Review by:

Superb little servo.

I've bought multiples of these tiny little servos and they are brilliant. I think they represent goid value for money too. Great speed, centering and torque values. Dispatch and delivery 1st class.


 Review by:

I would recommend this servomoors

Very good product. These servomotors are light little cumbersome and rapids. They seem very solid and have a couple being enough for a glider DLG. very satisfied with my purchase.
Thank you Régis.


 Review by:

Blue Bird HV Servo's

Brilliant service from Neil, received the next day and fitted to my Elf Mini, perfect fit and superb quality, as it states centering is spot on.


 Review by:

Maybe I've bought a worse one

Just bought one and another for normal voltage version. But seems I'm not lucky as this one's centering is very bad. There is about 3 times of shift distance while centering compared to the normal voltage version or D47.
Anyway, I'll buy another one to try again.


 Review by:

BMS101 Hv servo

good smooth free running ,HV servo . Just right for DLG use.


 Review by:

Bought more.

See previous review.


 Review by:

Prompt service, brilliant servo.

I bought these servos to upgrade my homebuilt "Mimi" DLG from analogue to digital. I'm very impresseed with all aspects of the servo; size, torque values and that the servos will run straight off 2s lipo. Regarding Hyperflight service I am just as impressed. Many thanks.


 Review by:

Initial impression is great. Very smooth, centers well. I needed the HV capability to run on 2s lipo unregulated.


 Review by:

Excellent Servo

Excellent little servo. I have used it on my elf, so thank you for the advice. As soon as the battery is connected they centre and there is no play. I wanted to use a 2s lipo without a regulator. I would recommend these.


 Review by:

Great value

Fantastic little servo, I use it as a replacement to Dymond D47 (Ripmax SD100) since it's digital and HV. Minimal play. Good precision. I installed 2 of these in a 1.5m DLG and so far they're working well.


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