Overview

The Emax CF2805 2840KV motor is a brushless motor specified for 2S Li-Poly setups and compact electric model aircraft power systems. It is rated for APC 6×4 and 7×4 propeller testing, with published RPM, current, and thrust figures for each prop.

Key Features

CF2805 motor, 2840 RPM/V (KV)
2S Li-Poly support
3 mm shaft diameter
Published performance data with APC 6×4 and APC 7×4 props

Specifications

Model	CF2805
No. of cells	2 x Li-Poly (2S)
RPM/V	2840
Stator dimensions	22 x 5 mm
Shaft diameter	3 mm
Weight	29 g / 1.02 oz
Recommended model weight	200-300 g
Recommended prop without gearbox	APC 7×4; APC 6×4
Test prop (APC)	6×4
RPM (APC 6×4)	13000
Max current (APC 6×4, <60S)	12 A
Thrust (APC 6×4)	413 g (0.91 lb)
Test prop (APC)	7×4
RPM (APC 7×4)	9900
Max current (APC 7×4, <60S)	14.4 A
Thrust (APC 7×4)	381 g (0.84 lb)
Mechanical drawing (key dimensions)	Outer diameter: 28.5 mm; Shaft: 3 mm; Lengths: 10.9 mm / 25.6 mm / 36.5 mm; Front face: inner diameter 22 mm; Mounting: 4 x 3.0 mm holes

Applications

Electric model aircraft around 200-300 g
2S Li-Poly power systems using APC 6×4 or APC 7×4 propellers

For compatibility questions (prop selection, 2S setups, and installation), contact [email protected] or visit https://rcdrone.top/.

Details

Performance specs include RPM, current draw, and thrust figures for APC 6×4 and 7×4 propeller testing on 2S Li-Poly setups.

Add a Review

Your email address will not be published. Required fields are marked *

Related Products

Hobbywing Xrotor 2807 1300KV and 2812 1100KV 900KV 46S Brushless Motors for FPV Racing and Long Range Drones

Sale

Shopping Cart

Menu

Emax CF2805 2840KV Brushless Motor for 2S Li-Poly, 22x5mm Stator, 3mm Shaft, 29g