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Dynam 3720-650kV Brushless Motor

Brand: Dynam /
Regular price 28.49 $2849

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DY-BM3720A-KV650

3720-650kV Brushless Motor for Dynam Airplanes with Bolt-on Style Propeller Shafts - DY-BM3720A-KV650

This motor is compatible with bolt-on style propeller shafts (click here for an example of a bolt-on propeller shaft). If you have a collet style propeller adapter (click here for an example of a collet style adapter) you will need to purchase the following replacement motor DY-BM3720A-KV650-C.

Tech Note: In late 2014 Dynam changed the design of their motors to be compatible with a bolt-on style propeller shaft similar to those used by Freewing and FMS. Previously, Dynam motors were designed to mate with a collet style (pressure fit or press-on style) propeller shaft. Please be aware of this difference and ensure you select the correct motor replacement for your application.

This motor is compatible with the bolt-on propeller shaft version of the following Dynam Aircraft:

  • C-188
  • Waco

Product Questions & Answers

NOTE: Questions submitted on this page are answered by customers who have previously purchased this item. If you have a support related question that requires immediate assistance, please visit our Help Center.

Product Reviews

Customer Reviews

4.5 Based on 18 reviews
5 Star
78% 
14
4 Star
11% 
2
3 Star
0% 
0
2 Star
6% 
1
1 Star
5% 
1
  • How difficult or easy is the product to assemble, use, or operate? Easy Very DifficultDifficultAverageEasyVery Easy
  • How well does the product perform / function? Good Very WeakWeakOkayGoodVery Good
  • How would you rate the overall quality of the product? Good Very LowLowOkayGoodVery Good
  • How would you rate the value of the product for the money? Good Very LowLowOkayGoodVery Good
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DS
04/26/2019
Donald S.
United States
  • How would you rate the overall quality of the product? Very LowLowOkayGoodVery Good
  • How would you rate the value of the product for the money? Very LowLowOkayGoodVery Good
  • How difficult or easy is the product to assemble, use, or operate? Very DifficultDifficultAverageEasyVery Easy
  • How well does the product perform / function? Very WeakWeakOkayGoodVery Good

Good Motor

Performs as expected

OC
03/20/2019
old crow
  • How would you rate the overall quality of the product? Very LowLowOkayGoodVery Good
  • How would you rate the value of the product for the money? Very LowLowOkayGoodVery Good
  • How difficult or easy is the product to assemble, use, or operate? Very DifficultDifficultAverageEasyVery Easy
  • How well does the product perform / function? Very WeakWeakOkayGoodVery Good

Motion RC parts and service

I am just getting back to RC airplanes after 30+ years away from the hobby. Things have changed so very much from the days of nitro fuelers, and the electronics at the moment are a nightmare for me. However Motion RC has made a lot of understanding a lot easier to contend with. The parts etc. I have ordered from Motion have always been received on time and have always been in good condition. and working properly according to specs. I have been using their write-ups a lot and find them very helpful, especially when it comes to the electronics and connections. Thank you MOTION RC. Ken J. Bird

CS
02/14/2019
Craig S.
United States
  • How would you rate the overall quality of the product? Very LowLowOkayGoodVery Good
  • How would you rate the value of the product for the money? Very LowLowOkayGoodVery Good
  • How difficult or easy is the product to assemble, use, or operate? Very DifficultDifficultAverageEasyVery Easy
  • How well does the product perform / function? Very WeakWeakOkayGoodVery Good

Motor shaft

The motor is of no use to me as the motor shaft does not allow use of Collette for propeller. Shaft goes out back of motor.

JD
09/28/2018
jeff d.
United States
  • How would you rate the overall quality of the product? Very LowLowOkayGoodVery Good
  • How would you rate the value of the product for the money? Very LowLowOkayGoodVery Good
  • How difficult or easy is the product to assemble, use, or operate? Very DifficultDifficultAverageEasyVery Easy
  • How well does the product perform / function? Very WeakWeakOkayGoodVery Good

Latest delivery,......

Just got my latest order from Motion, and as with all the other things I've gotten from these guys it measures up 100%, both in delivery and quality of items. Thanks once more.

RS
09/10/2018
Robert S.
United States
  • How would you rate the overall quality of the product? Very LowLowOkayGoodVery Good
  • How would you rate the value of the product for the money? Very LowLowOkayGoodVery Good
  • How difficult or easy is the product to assemble, use, or operate? Very DifficultDifficultAverageEasyVery Easy
  • How well does the product perform / function? Very WeakWeakOkayGoodVery Good

Dynam Brushless Motor

Bought as replacement for my Dynam Waco after I managed to damage the original.

RS
08/05/2018
Raymond S.
United States
  • How would you rate the overall quality of the product? Very LowLowOkayGoodVery Good
  • How would you rate the value of the product for the money? Very LowLowOkayGoodVery Good
  • How difficult or easy is the product to assemble, use, or operate? Very DifficultDifficultAverageEasyVery Easy
  • How well does the product perform / function? Very WeakWeakOkayGoodVery Good

Nice motor

Well made. Quiet. Nice price.

DN
07/31/2018
David N.
Ireland
  • How would you rate the overall quality of the product? Very LowLowOkayGoodVery Good
  • How would you rate the value of the product for the money? Very LowLowOkayGoodVery Good
  • How difficult or easy is the product to assemble, use, or operate? Very DifficultDifficultAverageEasyVery Easy
  • How well does the product perform / function? Very WeakWeakOkayGoodVery Good

Dynam Motor

Trouble free, it performs as described

JB
07/26/2018
Joseph B.
United States
  • How would you rate the overall quality of the product? Very LowLowOkayGoodVery Good
  • How would you rate the value of the product for the money? Very LowLowOkayGoodVery Good
  • How difficult or easy is the product to assemble, use, or operate? Very DifficultDifficultAverageEasyVery Easy
  • How well does the product perform / function? Very WeakWeakOkayGoodVery Good

Motor good after replaced on shipped model

Plane came in with bad motor motion sent new one great customer service.

WM
12/26/2017
William M.

THIS WAS A REPLACEMENT MOTOR

I had purchased a red Dynam Waco back in Nov. and after a few personal mod's she has proven to be a real show stopper at the field. HOWEVER!!!!!!!! it sounded like a coffee grinder (motor that is) when it was flying. Well, after about the eighth time of flying her and this noise just was not getting any better I called motion and talked to one of their reps about my situation. (Mike I believe) It didn't take long and he agreed that a replacement motor was needed. He sent one out to me, (free of charge) and ever since then, not only does the plane look good but even sounds like a winner. I believe for the $$$ this little motor, with the new Japanese bearings, is really a great improvement over what the original motor was and is. If you need a replacement motor, in this class and size, then this is the one.

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