25LA Silver (Codec:12352) O.S. Engine  [OSMG0026]

More cooling fin area stretches lifespan of motor, and practically eliminates engine seizures in the air

Added "webbing" in crankcase strengthens high-stress areas to help make sure that they resist the rigors of learning how exactly to travel

General tighter needle valve fit uses an "O" band to aid maintain the performance amounts you'll need

a gas inlet that tips up permits easier gas line access for fueling and defueling

SPECIFICATIONS

• Stock Numbers: OSMG0026
• Displacement: 0.2485 cu in (4.0 cc)
• Bore: 0.7087 in (18 mm)
• Stroke: 0.63 in (16 mm)
• Practical rpm: 2,500-16,000
• Output: 0.6 hp @ 15,000 rpm
• body weight: 6.9 oz (197 g)
• suggested Props: 9x5, 9x6, 10x5