GEPRC SPEEDX2 2809 V1.1 Motor 1450KV/1280KV, 5mm Shaft, 19x19mm Mount, 25.2V (6S)

Description

Overview

The GEPRC SPEEDX2 2809 V1.1 Motor (1450KV / 1280KV options) is designed for 78 inch long-range FPV builds. It uses a stator with 0.2mm Kawasaki silicon steel for efficient magnetic flow and N52H magnets for improved high-temperature resistance. The motor uses a 19mm x 19mm mounting pattern.

Key Features

• New Version, Superior Performance
• SPEEDX2 Series Simple Appearance Design; unique appearance, science fiction design elements
• Integrated Outer Rotor: using 7075 aviation aluminum alloy, high-precision CNC integrated
• Exquisite Color Matching: overall dark appearance with red edge
• High-strength motor structure: rotor edge structure conforms to the load-bearing mechanical design and has strong impact resistance
• Efficient Magnetic Circuit Scheme: high-quality N52H magnetic steel is used to prevent high temperature demagnetization
• N52H arc-shaped magnets: strong magnetism, stable power output and high efficiency
• Energy-saving stator: low heating, improving work efficiency and endurance; low energy consumption
• Damping O-ring: reducing motor vibration and improving bearing lifetime
• 5mm output shaft carburizing heat treatment: high strength and good stability
• Reinforced base: high structural strength

Specifications

Series	SPEEDX2
Model	GEPRC SPEEDX2 2809 V1.1 Motor
KV options	1450KV / 1280KV
Magnet	N52H
Rotor material	7075 (7075-T6 stated)
Stator diameter	28mm
Stator height	9mm
Bearing type	NSK/NMB
Configuration	12N14P
Dimensions	Dia 34.2mm * 36.7mm
Overall height (drawing)	36.7mm +/-0.5
Body height (drawing)	21.7mm +/-0.3
Motor diameter tolerance (drawing)	Dia 34.2mm +/-0.1
Shaft diameter	5mm (drawing: Dia 5 -0.02/-0.06)
Shaft protruding length	15mm (drawing: 15 +/-0.2)
Propeller	78 Inch
Mounting holes	19mm x 19mm (M3 stated)
Lead	18AWG 250mm (spec table); drawing shows 260mm (260 +/-5)
Input volts	25.2V (6S Lipo)
Recommended ESC	50A70A
Winding	Single strand copper winding
Color	Reddish black
Weight (included wire)	60 +/-1.5g
Compatible models	77.5 inch long-range FPV drones / 77.5 inch X8 builds

Electrical & Output (by KV)

Parameter	1450KV	1280KV
Max Watt	1486.5W	<=1455.2W
Peak current	60.88A	59.06A
Interphase resistance	50.8mohm +/-5%	60.17mohm +/-5%

Performance Data (Motor Data Sheet)

SPEEDX2 2809 1450KV

Prop (inch)	Voltage (V)	Throttle (%)	Current (A)	Thrust (G)	Power (W)	Efficiency (G/W)	Temperature (C)
7*4*3	25	50%	14.22	1035	354.3	2.9	126C
60%	20.49	1393	508.7	2.7
70%	30.46	1752	753.1	2.3
80%	38.21	2059	941.4	2.2
90%	49.81	2345	1221.8	1.9
100%	60.88	2592	1486.5	1.7
7.5*3.7*3	25	50%	12.85	986	320.3	3.1	103C
60%	19.51	1387	484.8	2.9
70%	28.01	1748	693.3	2.5
80%	37.64	1882	927.5	2
90%	47.99	2185	1178.2	1.9
100%	58.3	2383	1425.1	1.7
7.5*3*3	25	50%	11.16	982	278.3	3.5	117C
60%	17.96	1365	446.5	2.7
70%	25.69	1782	636.3	2.8
80%	34.5	2144	851.4	2.5
90%	44.26	2493	1087.5	2.3
100%	55.71	2795	1362.9	2.1

SPEEDX2 2809-1280KV

Prop (inch)	Throttle (%)	Voltage (V)	Current (A)	Thrust (G)	Power (W)	Efficiency (G/W)	Temperature (C)
7*4*3	50%	24.91	11.35	819	285.5	2.87	86C
60%	24.83	16.7	1152	419	2.75
70%	24.72	23.19	1512	579.4	2.61
80%	24.64	31.97	1841	796.2	2.31
90%	24.53	42.26	2146	1048.1	2.05
100%	24.42	53.66	2482	1324.5	1.87
7.5*3.7*3	50%	24.92	8.84	846	222.5	3.8	98C
60%	24.85	13.47	1201	338.4	3.55
70%	24.75	19.3	1525	483.6	3.15
80%	24.66	26.5	1913	661.6	2.89
90%	24.55	34.98	2257	870.4	2.59
100%	24.44	44.37	2587	1099.8	2.35
8*4*3	50%	24.94	11.7	1050	294.3	3.57	122C
60%	24.86	18.63	1469	466.9	3.15
70%	24.77	26.25	1865	655.3	2.85
80%	24.68	37.48	2234	931.9	2.4
90%	24.57	46.76	2557	1157.9	2.21
100%	24.46	59.06	2883	1455.2	1.98

Whats Included

• 1 x GEPRC SPEEDX2 2809 Motor (1280KV or 1450KV, depending on selected option)
• Round head M3*9 screws (4PCS)
• M5 flange nut (1PCS)

For order support and after-sales questions, contact [email protected] or visit https://rcdrone.top/.

Applications

• 78 inch propeller FPV builds
• 77.5 inch long-range FPV drones
• 77.5 inch X8 builds

Details