| M25Y Black Devil | |
|---|---|
| Type | Aircraft engine |
| National origin | Italy |
| Manufacturer | Cors-Air srl |
The Cors-Air M25Y Black Devil is an Italian aircraft engine, designed and produced by Cors-Air of Barco di Bibbiano for use in powered parachutes and very small ultralight trikes flown by heavy pilots.
Design and development
The M25Y is a single-cylinder two-stroke, 173 cc (10.6 cu in) displacement, air-cooled, petrol engine design, with a poly V belt reduction drive. The reduction drive has optional reduction ratios of 2.2:1, 2.3:1, 2.5:1, 2.6:1, 2.7:1 and 2.88:1. The M25Y employs a single capacitor discharge ignition, a WB37 diaphragm carburettor and produces 21 hp (16 kW) at 7900 rpm. The weight is 14.4 kg (31.7 lb) including the exhaust system.
The engine has a centrifugal clutch that stops the propeller spinning when the engine is operated at low RPM, a safety feature for use in powered paraglider applications.
Applications
Specifications (M25Y Black Devil)
Data from Tacke
General characteristics
- Type: Single-cylinder, two stroke aircraft engine
- Bore: 65 mm (2.6 in)
- Stroke: 52 mm (2.0 in)
- Displacement: 173 cc (10.6 cu in)
- Length: 240 mm (9.4 in)
- Width: 250 mm (9.8 in)
- Height: 330 mm (13.0 in)
- Dry weight: 14.4 kg (31.7 lb) including the exhaust system
Components
- Fuel system: WB37 diaphragm carburettor
- Fuel type: petrol
- Cooling system: air
Performance
- Power output: 21 hp (16 kW)
- Compression ratio: 11:1
See also
Related lists
References
- ^ Tacke, Willi; Marino Boric; et al: World Directory of Light Aviation 2015-16, pages 256-257. Flying Pages Europe SARL, 2015. ISSN 1368-485X
- ^ Cors-Air srl. "Black Devil Light – Clutch". www.corsairmotors.com. Retrieved 16 January 2018.