Specifications of the tested motors

Specifications of the tested motors

Two motors have been tested, both are outrunner BLDC.

The first one is a N2830/13 from the brand EMP¹. The second one is a LC2835-4T from the brand Leopard Hobby².

The two motors have similar mass but differs by the K_v. The EMP motor has a low K_v which allows a slow RPM at the usual input voltage while the Leopard motor with its high K_v is meant for smaller propellers at higher RPM, more typical of a fast plane.

Below are the specifications of the two motors as they can be found on the companies website.

Table 1 -Specifications of the EMP N2830/13

Motor	N2830/13		Size
KV(rpm/v)	850
Power(W)	300
Wire Winds	13
Resistance(mΩ)	254
Idle Current(A)	0.4		Shaft diameter A(mm)	3
ESC(A)	20		Motor length B(mm)	31
Cells Ni-Cd/Ni-MH	6-12		Motor diameter C(mm)	35
Cells Li-Po	2-4		Basic length D(mm)	21
Prop	11x5.5/9x6/10x4		Total length E(mm)	45

Table 2 -Specifications of the Leopard LC2830-4T (highlighted in green)

1. http://skyhobby.en.alibaba.com/product/476467112-212631801/RC_outrunner_brushless_motor_N2830_KV850.html
2. http://www.leopardhobby.com/Uploadfiles/cpml/201504021517.pdf