O.S. Engine OSMG1426 25LA-S Control-Line Engine  [OSMG1426]

O.S. Engine 25LA-S
Price:
USD$0.00
Brand:
O.S. Engine
Model:
OSMG1426
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Experience the O.S. Engine 25LA-S: A Control-Line Marvel

The O.S. Engine 25LA-S, also known by its model number OSMG1426, is a testament to the brand's commitment to innovation in the world of control-line engines. Designed for both power and affordability, this engine has become a favorite among RC hobbyists who appreciate reliable performance.

Why the 25LA-S Stands Out

One of the key features of the 25LA-S is its venturi design, which replaces the traditional carburetor. This ensures the engine runs at a consistent speed, making it ideal for control-line flying where precision is paramount. The inclusion of a remote-mounted needle valve, positioned at the rear for safety, allows for easy adjustments while protecting against impacts.

Built for Durability and Performance

Constructed with a heavy-duty one-piece crankcase reinforced with webbing, the 25LA-S is designed to withstand high-stress conditions. The engine also features bronze bushings that reduce friction, enhancing operational efficiency. A flat prop washer and a longer crankshaft provide additional threading for secure propeller attachment, while the squared heat sink head and increased fin area improve cooling and extend the engine's lifespan.

Specifications

  • Displacement: 0.249 cu in (4.07 cc)
  • Bore: 0.709 in (18.0 mm)
  • Stroke: 0.630 in (16.0 mm)
  • Practical RPM: 2,000-16,000
  • Output: 0.6 hp @ 15,000 rpm
  • Weight: 6.54 oz (185.5 g)
  • Recommended Props: 9x6, 10x

The O.S. Engine 25LA-S is perfect for control-line pilots seeking a reliable and affordable engine. Its robust construction and thoughtful design make it suitable for both beginners looking to enhance their skills and experienced flyers who demand consistency and performance.

Yes, the consistent speed and durable construction make it suitable for beginners.
It uses standard glow fuel, commonly available at hobby shops.
The venturi design maintains a constant speed, crucial for control-line flying.
Recommended prop sizes include 9x6 and 10x for optimal performance.

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