Armature Wind Specifications

Armature Wind Specifications

Motor	# Turns	Gauge	Stack L	Stack D	Comments

16D	70	30	.600"		Cheap Chinese junk arm, n/balanced, need to buy 20 to get good one, D-can setup, uses S16D magnets

Contender Sportsman Competitor Challenger II	55	30	.440"		C-can setup, available balanced and unbalanced, consistent US made arms

Super 16D	60	28	.500"		Balanced, D-can setup, Chinese and US arms available

Super 16C	55	28	.490"	.513"	C-can setup, close to Group 12 in performance, used in GTP classes where C-can are used

Outlaw Super 16D	55	28	.450"	.513"

Box Stock 12	50	29	.350"

Box Stock 15	50	29	.440"	.513"

Wasp Super Wasp Hornet	60	30	.350"		C-can setup, slight edge on the Group 11

Group 11	55	30	.440"		C-can setup, aka Challenger II, Competitor, Contender & Sportsman, popular in GT-1, beginners wing car, National 4.5", NASCAR, JRL

Group 12	50	29	.350"	*	Used in Box stock wing cars, Scale Group12, GTP 12, Outlaw 12, X-12 usually just means X-tra high timing. This arm is also configured for strap motors where the armature can be smaller than .513"

Group 15	50	29	.440"	*	* 12 & 15 come in varying diameters and are used in setups from C-cans to cobalt strap setups for various classes

Group 20	38	27	.440"	.513"	C-can setup used in wing cars and Drag Racing

Group 27	38	27	.440"		Hand wound, any diameter, used in cobalt strap setups

Open or Group 7					Anything goes