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Featuring

Dynam	GraysonHobby Brushless Motor	Himax
Tower Pro	Welgard Electronics

Which Motor Do I need?

Choosing a brushless motor can be intimidating, but understanding a few specific characteristics you can easily find the perfect motor. Motors with higher winds spin slower and they have a lower Kv (RPM/V). They spin a larger propeller at slower speeds and at a lower current. Motors with lower winds have a higher Kv (RPM/V). They spin a smaller propeller at higher speeds and at a higher current than high turn motors.

To determine the motor, decide on your flying style and aircraft. Is sport fast flyer, or a slow plane with a lot of drag? For the high speed airplane a low turn motor that spins a small prop fast would be the right choice. For the slow high drag plane, a high turn motor that can spin a much larger prop and produce a lot of thrust at low speed is what you want.

Low KV = slow RPM, large prop, low AMP (current)
High KV = fast RPM, small prop, high AMP (current)


Below is a motor chart that will assist in choosing a brushless motor based on aircraft weight. However, choosing a motor is dependent on aircraft type, battery and flying style. Below is a chart that will guide you in your choice. When choosing a motor, the battery, electronic speed controller (ESC) must be able to handle the current. Clicking on any motor will provide more specific motor information.

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Glow to Electric Conversions

Glow Size	GraysonHobby Motor	Aircraft Weight
.20 equivalent	Tower Pro 2908-10	(1.5 lbs - 3 lbs)
.25 - 35 equivalent	Welgard 2814 -06	(2.1 lbs - 4.25lbs)
.25 - 35 equivalent	Welgard 2814 -08	(2.1 lbs - 4.18lbs)
.30 equivalent	Tower Pro 2915 - 5	(2 lbs - 5 lbs)
.40 equivalent	Welgard 2820-06	(2.18 lbs - 5.5 lbs)
.60 equivalent	Welgard 4120-07	(4.5 lbs - 7.7 lbs)
.60 - .90 equivalent	Welgard 4130-08	(6.6 lbs - 13.25 lbs)

Welgard Park Flyers

GraysonHobby Motor	KV (RPM / V)	Aircraft Weight	Flying Type
Welgard WA2208-17	1100	7 oz - 17 oz	Pattern/3D
Welgard WA2208-12	1700	7 oz - 17 oz	Pattern/3D
Welgard WA2212-13	1000	10.2 oz - 28.2 oz	Pattern/3D
Welgard WA2212-10	1400	10.2 oz - 28.2 oz	Sport
Welgard WA2212-06 (See Comment below)	2200	10.2 oz - 28.2 oz	ParkJets / Wings
Welgard WA2217-07	1400	20 oz - 50 oz	Sport/Aerobatic
Welgard WA2217-09	1080	20 oz - 50 oz	Pattern/Scale/3D
Welgard WA2217-10	980	24 oz - 50 oz	Pattern/Scale/3D

Big Thumbs Up!
I highly recommend this motor for any of my original (100%) park jets,
 it's a perfect match when used with a 2100 battery ~ Steve Shumate (JetSet44)
Park Flyers

GraysonHobby Motor	KV (RPM / V)	Aircraft Weight
A22-10S	1200	8 oz - 32 oz
A22 -15M	1050	10  oz - 40 oz
A22-20L	1050	12 oz - 60 oz
A20-34S	1500	4 oz - 15oz
A20-28M	1050	9 oz - 30oz
A20-20L	1050	10 oz - 35oz

Economy Brushless

GraysonHobby Motor	KV (RPM / V)	Aircraft Weight	Flying Type
TowerPro 2410-12 Delta	1530	8 oz - 30 oz	Sport
TowerPro 2408-21 Star	1750	8 oz - 30 oz	Sport
TowerPro 2410-8 Star	1260	8 oz - 30 oz	Pattern / 3D
TowerPro 2410-12 Star	970	8 oz - 30 oz	Pattern / 3D
TowerPro 2409-18 Delta	1000	8 oz - 30 oz	Pattern / Sport

GRAYSON HOBBY
FEATURED ITEM

Welgard  WA2212-10 Brushless Outrunner Motor & Welgard 18Amp ESC Combo Video of a JetSet44 F-18 flying this motor Buy it now for $34.99

For SPEED 400/480 size airplanes, but provides much more power Motor Stats Wire Winds / Turns: 20 Ni-Mh Battery:6 - 10 cells Li-Po Battery: 2 / 3 cells RPM per volt : 1,400 Max efficiency: 80% Max efficiency current: 6 - 12A (>75%) No Load Current / 10V: 0.6A Max Current: 22A / 60 sec Dimension: 27.5 x 30mm Shaft: 3.17mm Weight: 47g (1,65oz) Recommended Model Weight: 300 - 800g (10.5oz to 28.2oz) Recommended Propeller without gearbox 7 cells NiMh  8 cells NiMh : 9" x 5" 10 cells NiMh : 8.5" x 6" 2 cells Li-Po : 9.5" x 5" 3 cells Li-Po : 8" x 4" Mounting Options Includes mounting bracket, screws, and prop adapter.     Welgard Speed Controller Data Technical Data Weight: 18.2g (.064 oz) Use with Ni-Cd,Ni-Mh, Li-Ion, and Li-Poly batteries Size: 45 x 24 x 9 mm Auto throttle calibration AUTO CELL DETECT!!! BEC: 1 Amp (Suggested Use --> 2 Li-Poly=4 servos, 3 Li-Poly =3 servos) Timing: Auto High rate Switching: 8kHz Auto Voltage cutoff Set at 3.0V A Cell Li-Poly 0.8 NiCd/NiMH Brake: Programmable On/Off Max RPM: 40,000 RPM with 14 pole motor Auto shut down when signal is lost More Info (Manual)