LA Series  | The standard in sport engine technology, in a unique streamlined design- More cooling fin area extends the life of the engine, and virtually eliminates engine seizures in the air
- Added "webbing" on the crankcase strengthens high-stress areas to help ensure that they stand up to the rigors of learning to fly
- Overall tighter needle valve fit utilizes an "O" ring to help maintain the performance levels you need
- A fuel inlet that points up allows for easier fuel line access for fueling and defueling
| Engine | Displacement
(cu in) | Bore
(in) | Stroke
(in) | RPM | Output
(HP@rpm) | Weight
(oz) | Recommended
Props | 10LA
(OSMG0011) | 0.107
(1.76 cc) | 0.529
(13.4 mm) | 0.488
(12.4 mm) | 2,500-18,000 | 0.27 @ 17,000 | 3.95
(112 g) | 7x4, 7x5 | 15LA
(OSMG0016) | 0.15
(2.5 cc) | 0.598
(15.2 mm) | 0.539
(13.7 mm) | 2,500-18,000 | 0.41 @ 17,000 | 4.87
(138 g) | 7x5, 7x6, 8x4, 8x5 | 25LA
(OSMG0026) | 0.2485
(4.0 cc) | 0.7087
(18 mm) | 0.63
(16 mm) | 2,500-16,000 | 0.6 @ 15,000 | 6.9
(197 g) | 9x5, 9x6, 10x5 | 46LA
(OSMG0047) | 0.467
(7.5 cc) | 0.906
(23.0 mm) | 0.724
(18.4 mm) | 2,000-16,000 | 1.2 @ 16,000 | 9.6
(270 g) | 11x6, 11x7 | 65LA
(OSMG0066) | 0.662
(10.85 cc) | 0.944
(24 mm) | 0.925
(23.5 mm) | 2,000-16,000 | 1.7 @ 16,000 | 18.0
(510 g) | 12x7, 12x8, 13x6, 13x7, 13x8 |
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Engines 
