This is the Great Planes ElectriFly T-370 Gear Drive Park Flyer Motor System with the C-12 Electronic Speed Control. FEATURES: High-performance power package with the power of 370 motor in a 270 size can C-12 Electronic Speed Control has Safe-Start feature to prevent accidental motor spin at start up, low voltage cutoff to maintain radio control in the event of low battery, 6-8 cell NiCd NiMH, 2-3 cell LiPo input, BEC (Battery Eliminator Circuitry) and pre- installed motor, receiver and Deans battery connectors 3.75:1 gearbox has 12 tooth brass pinion gear for strength and a nylon main gear for quiet, low friction operation Economical bronze bushings in gearbox for long-lasting sport use Lightweight, fiber-reinforced, sealed gear case keeps out dust and debris as well as resisting damage One year warranty INCLUDES: Ferrite Motor with Red 2-Pin Connector, GPMG0310 C-12 Micro Electronic Speed Control, GPMM2015 10x4.5 Slo-Flyer Propeller, GPMQ6660 3.75:1 Gearbox Brass 12 Tooth Pinion Gear (GPMG0243) Mounting Hardware Full Instruction Sheet REQUIRES: Installing in aircraft and making connections SPECS T-370 Ferrite Motor Windings: 30 turns of .47mm wire Maximum RPM (unloaded): 29,000 Rotation Direction: Counter-clockwise Output Shaft Diameter: .079" (2mm) Output Shaft Shape: Round Can Diameter: .96" (24.4mm) Can Length: 1.2" (30.8mm) Endbell Type: Closed Weight: 1.55oz (44g) Length: .83" (21mm) Width: .45" (11.5mm) Height: .26" (6.5mm) Weight: .27oz (8g) with wires C-12 Electronic Speed Control Length: .83" (21mm) Height .31" (8mm) Width: .43" (11mm) Weight: .28 ounce (8g) with wires Input: 6-8 NiCd/NiMH cells; 2-3 LiPo cells Max Rated Current: 12A continuous BEC Voltage: 5V/1A Low Voltage Cutoff: .80V per cell for NiCd/NiMH 2.75V per cell for LiPo Connectors: Receiver lead- Universal Battery lead- Deans 2R micro connector Motor connector- 2mm gold plated female bullet Switching Frequency: 2.5kHz Motor Size: 400 or smaller Brushed only COMMENTS: If using included propeller you need to omit the use of the washer or use a thinner washer on prop adapter. jxs 8/12/05 ir/jxs updated rda5/26/06 ESC info updt jxs 6/03/09