This is the ElectriFly Rimfire 35-45-1250kV EF1 Outrunner 14 Pole Brushless Motor from Great Planes.
FEATURES
Compact size and light weight is ideal for EF1 aircraft racing
INCLUDES
35-45-1250kV Brushless Motor, Prop Adapter, Hardware, Gold Plated 3.5mm Male and Female Bullet Connectors, and Instructions
REQUIREMENTS
Propeller, APC 8x8E (APCQ4116) or APC 9x8E (APCQ4149) recommended ESC such as the Castle Phoenix Edge Lite 75 (CSEM1200), or the Phoenix Edge 75A (CSEM0101)
SPECIFICATIONS
Diameter: 1.4" (35mm) Length: 1.7" (45mm) kV: 1250 Max Surge Current: 67A Max Surge Watts: 1000W Weight: 5.6oz (159g) Number of Poles: 14 No-Load Current/A: 1.9 No-Load Voltage/V: 7.4 Internal Resistance/miliohm: 25 Shaft Diameter: 0.196" (5.0mm) Voltage Input: 7.4 - 14.8V (2S-4S LiPo) Motor Mount Thickness: 0.12" (3mm) Distance between Motor Mount Hole Centers: 0.75" (19mm) Diameter of Motor Mount Holes: 0.12" (3mm) Ball Bearings 1 pc. 5mm I.D. x 13mm O.D. x 4mm Width 2 pcss 5mm I.D. x 10mm O.D. x 4mm Width