Marine thermal engine O.S. Engines 46 VX-M 7.45 cm3

The O.S. MAX-46 VX-M Engine: Japanese Quality for Performance

Developed by O.S. Engines, the MAX-46 VX-M is a glow engine specially designed for high-speed radio-controlled boats.

Designed for demanding pilots, it benefits from the Japanese manufacturer's extensive experience in designing high-performance glow engines.

With a displacement of 7.45 cm³ (0.46 cu.in.), this engine delivers power of up to 2.5 PS at 23,000 rpm, while accepting a range of operation between 2,500 and 28,000 rpm.

These features allow it to provide quick accelerations, excellent top speed, and great flexibility in use.

The 46 VX-M features an ABC construction (Aluminum - Brass - Chrome) ensuring excellent piston sealing, reduced wear, and long lifespan when properly maintained.

Specific Design for Model Boating

Unlike engines for radio-controlled airplanes, the VX-M is equipped with several components specifically developed for marine use.

Its water-cooled cylinder head ensures effective temperature control even during long full-throttle accelerations.

Its carburetor is designed to provide consistent fuel delivery under heavy load, while its crankshaft is designed to accommodate flexible drive, a widely used solution in competitive RC boats.

This design results in a particularly reliable engine, capable of running durably at very high speeds.

A Favorite Engine Among Enthusiasts

Even years after its production ceased, the O.S. MAX-46 VX-M remains highly sought after in the second-hand market.

Its machining quality, reliability, and availability of common consumables (bearings, gaskets, spark plugs) explain the continued interest it generates among hobbyists restoring vintage RC boats or wanting to keep an authentic Japanese engine.

Technical Specifications

• Displacement: 7.45 cm³
• Bore: 22 mm
• Stroke: 19.6 mm
• Maximum Power: 2.5 PS at 23,000 rpm
• Operating Range: 2,500 to 28,000 rpm
• Type: 2-stroke glow engine
• Technology: ABC
• Cooling: water-cooled
• Weight: 445 g
• Usage: high-speed and competition radio-controlled boats

Why Choose the O.S. MAX-46 VX-M?

• Japanese manufacturing by O.S. Engines
• Excellent power for a 7.5 cm³ displacement
• High mechanical reliability
• Smooth operation at high speeds
• Efficient water cooling
• Engine sought after by collectors and enthusiasts of vintage RC boats

The O.S. MAX-46 VX-M remains today one of the most iconic glow marine engines produced by O.S. Engines.

Its manufacturing quality, performance, and durability still make it an excellent choice for equipping or restoring a classic high-speed radio-controlled boat.