FPVGimbalStators

42 Series

Ø42 stator · 18 mm

300 g of stator and rotor for the large multirotor end, wound at 330 KV for 12S and 560 KV for 6S.

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Specification

One frame, every winding.

D4218 · frame

Rotor poles: 14
Motor size: Ø50.4 × 64.5 mm
Stator size: Ø42 × 18 mm
Weight: 300 g

2 windings

Winding	Propeller	Supply	Max thrust	Max speed	Max current	Input power	Peak system eff.	Peak drive eff.	Internal resistance	Max power
KV330	GF1410-3	40.0 V	8.204 kgf	9,806 RPM	74.6 A	2.899 kW	5.82 gf/W @ 50%	82.5 %	0.058 Ω	2899 W
KV560	GF1310-3	25.0 V	5.618 kgf	10,050 RPM	78.6 A	1.781 kW	5.61 gf/W @ 50%	83.1 %	0.029 Ω	1781 W

Figures as published on the manufacturer’s data sheet for this model. Peak and maximum values are single-run readings from the static bench, not continuous ratings.

Measured data

Off the bench, not the brochure.

Static thrust sweeps for the D4218, every winding, exactly as recorded on the test stand.

Winding

Max thrust8.204 kgf

Max speed9,806 RPM

Max current74.6 A

Input power2.899 kW

Peak system eff.5.82 gf/W @ 50%

Peak drive eff.82.5 %

Internal resistance0.058 Ω

Max power2899 W

GF1410-3 · 40.0 V

Throttle (%)	Voltage (V)	Current (A)	Thrust (kgf)	Elec. power (W)	System eff. (gf/W)	RPM	Torque (N·m)	Shaft power (W)	Drive eff. (%)	Prop eff. (gf/W)	Temp. (°C)
50	39.9	11.5	2.666	457.8	5.82	5573	0.640	373.5	81.6	7.14	28.4
60	39.8	19.1	3.721	759.6	4.90	6627	0.902	626.0	82.4	5.94	28.8
70	39.6	28.3	4.806	1120.6	4.29	7538	1.171	924.4	82.5	5.20	30.1
80	39.4	40.6	6.080	1602.0	3.80	8381	1.490	1307.7	81.6	4.65	31.6
90	39.2	55.5	7.316	2176.1	3.36	9116	1.812	1729.8	79.5	4.23	34.0
100	38.9	74.6	8.204	2898.9	2.83	9806	2.165	2223.2	76.7	3.69	36.4

Mechanical interface

Rotor poles: 14
Motor size: Ø50.4 × 64.5 mm
Stator size: Ø42 × 18 mm
Weight: 300 g

Static bench results as measured; no endurance or thermal-soak qualification is implied.

42 Series

One frame, every winding.

Every dimension, drawn.

Off the bench, not the brochure.