Mega RC400

The MEGA RC400 Series are available in 2 lengths. They are designed for direct drive applications. With neodym magnets and the rotating case they give extremely high torque allowing the use of large diameter props. It has a hardened shaft supported by two ball bearings.

Dimensions

Motor Installation

The motor must be mounted on a rigid mounting with two M3 screws into the front plate. The screws should extend at least 3mm into the front plate, but not more than 5mm ( there is a risk of the motor windings being damaged). The RC motor has a rotating case - Beware of unsecured wires, parts or RC flight equipment etc.

To change the direction of rotation, simply switch over the connection of the two outer cables between the motor and the speed controller, but leave the centre cable connection untouched.

Test Data

The following test results where carried out in our own workshop. A TMM18e-3ph speed controller was used in all cases.

Motor	Prop	Volts	Amps	Rpm	Thrust (g)	Battery Type
RC400/7/12	APC SF 8x3.8	7.1	4.0	6050	250	2S ETEC1200
RC400/7/12	APC SF 9x4.7	6.8	5.2	5400	322	2S ETEC1200
RC400/7/12	APC SF 10x4.7	6.5	6.9	4500	371	2S ETEC1200
RC400/7/16	APC SF 8x3.8	7.4	2.1	5037	172	2S ETEC1200
RC400/7/16	APC SF 9x4.7	7.3	2.9	4580	230	2S ETEC1200
RC400/7/16	APC SF 10x4.7	7.0	3.9	3965	285	2S ETEC1200
RC400/7/16	GWS EP1170HD	6.9	4.3	3690	310	2S ETEC1200
RC400/7/16	APC SF 8x3.8	10.7	3.8	6721	329	3S ETEC1200
RC400/7/16	APC SF 9x4.7	10.4	4.7	6070	402	3S ETEC1200
RC400/7/16	APC SF 10x4.7	10.0	6.5	4945	466	3S ETEC1200
RC400/7/16	GWS 4025	11.6	0.5	9003	-	3S ETEC1200
RC400/7/16	None	11.6	0.32	-	-	3S ETEC1200
RC400/15/5	APC SF 9x4.7	7.9	11.1	7650	-	7cell 1700SCR
RC400/15/6	APC SF 9x4.7	8.0	8.0	6900	-	7cell 1700SCR
RC400/15/7	APC SF 9x4.7	8.6	5.5	6270	-	7cell 1700SCR
RC400/15/7	APC SF 10x7	8.3	10.7	5010	-	7cell 1700SCR

Motocalc Specs

By using our own tests we have come up with the following figures for the RC400 series motors that can be used in motor simulation programs such as Motocalc. These differ from the manufacture given specs but give more accurate results for power system estimations.

RC400/7/12 kv = 1141, Io = 0.48, Rm = 0.34
RC400/7/16 Kv = 811, Io = 0.25, Rm = 0.53

RC400/15/5 Kv = 1193, Io = 0.89, Rm = 0.12
RC400/15/6 Kv = 1043, Io = 0.7, Rm = 0.16
RC400/15/7 Kv = 850, Io = 0.53, Rm = 0.21
RC400/15/8 Kv = 760, Io = 0.5, Rm = 0.28

Manufacturer Technical Data

		RC 400/7/		RC 400/15/
		12	16	5	6	7	8
Number of winds	-	12	16	5	6	7	8
Number of cells	-	4-10	4-12	4-12	4-12	4-16	4-16
No load rpm/1v		1115	857	1210	1070	915	800
Max. current	A	10	8	16	15	14	12
Resistance of 1 phase	mΩ	119	179	41	47.5	66.5	92.5
Weight	g	39	39	63	63	63	63