High performance made affordable.

Model 20-3600

20 size kV=3600 rpm/volt
GPMG5000

Model 20-4300

20 size kV=4300 rpm/volt
GPMG5005

Model 20-5100

20 size kV=5100rpm/volt
GPMG5010

More flight time per pack. More raw power for 3D stunts. Split-second response on demand. Ammo Motors’ patented windings and brushless, slotless design have the efficiency to deliver all three affordably for everything from hotliner “bullets” to high-alpha 3D aerobats.

Exceptionally high power-to-weight ratio! Compact 3600, 4300 and 5100 kV models add only 2 oz (57.7 g) to aircraft weight.
Ideal for direct-drive or gear-drive applications.
Made in the U.S.A. from top-quality materials. Includes: a 1-piece can machined from aircraft-grade aluminum, Neodymium rare earth magnets, shielded ABEC 3 ball bearings, stainless steel output shaft and gold-plated bullet connectors.
High-efficiency design produces minimal waste heat and extends motor life to the max.
Exceptionally reliable, virtually maintenance-free and protected by a full, 2-year limited warranty.
Minimizes “glitching” with extra-low RF and EMI (Electromagnetic Interference) emissions.

Windings: the Ammo Motor “edge” in efficiency and top performance!

All electric motors have windings. But the winding method in Ammo Brushless Motors is so innovative and advanced that it’s protected by two patents!

inset 1

Each winding starts out as a hollow rectangle of fine copper wire…

inset 2

which is folded over to form overlapping layers of wire…

inset 3

and rolled into a tightly packed, full-length cylinder of pure copper that surrounds the rotor.

U.S. Patent Numbers 5,294,855 and 5,197,180

Stock #	Model	Input (# of Cells)	RPM/V (kV)	Max. Constant Current	Max.Surge Current
GPMG5000	20-3600	6-10	3600	10-12A	18-20A
GPMG5005	20-4300	6-10	4300	10-12A	18-20A
GPMG5010	20-5100	6-10	5100	10-12A	18-20A

Compared to traditional brushed motors and low-cost brushless motors which are "slotted" in design, the "slotless" design of Ammo motors results in many performance advantages which make them the motor of choice for 3D flying.

Motor Type	Brushed	Brushless & Slotted	Ammo Brushless & Slotless
Cost to Produce	lowest	higher	highest
Efficiency	30-40%	70-78%	up to 87%
Power-to-Weight	worst	better	best
Run Time	worst	better	best
Response & Acceleration	worst	better	best
Maintenance	most	virtually none	virtually none

Ammo Motors Specifications:
Can Length: 1.57 in (40 mm)
Can Diameter: 0.79 in (20 mm)
Weight: 2.0 oz (58 g)
Shaft Length: 0.39 in (10 mm)
Shaft Diameter: 0.08 in (2 mm)

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(99k PDF)

Click here for a review by The E Zone