New-old-stock Magnum XL .52 RFS single-cylinder four-stroke glow engine with its original muffler, box, instruction manual, and additional factory materials shown in the photographs.

This engine is new and has never been run or installed in an aircraft. It has remained in storage for at least five years. The crankshaft rotates, the piston moves through its cycle, and the carburetor throttle operates. The engine will require the manufacturer’s complete break-in procedure before normal operation.

The Magnum XL .52 RFS was designed to provide dependable four-stroke power for sport, trainer, scale, and aerobatic model aircraft. Its .52-cubic-inch displacement made it a useful alternative to larger two-stroke engines while providing the realistic sound, good fuel economy, and broad propeller selection associated with four-stroke power.

The engine features an aluminum piston with an iron ring operating in a steel cylinder sleeve, a design intended to provide good compression, long service life, and strong power output. Its dual-needle carburetor permits separate high- and low-speed mixture adjustments for accurate fuel metering and dependable throttle operation.

Magnum’s four-stroke engines became popular with sport modelers because they offered solid performance and practical features at an affordable price. The XL .52 RFS was particularly well suited to modelers wanting traditional four-stroke operation in a moderately sized aircraft.

Condition and contents:

• New-old-stock Magnum XL .52 RFS four-stroke glow engine
• Never run or installed in an aircraft
• Crankshaft rotates and piston moves
• Carburetor throttle moves
• Original muffler included
• Original box included
• Original instruction manual included
• Additional factory materials included as shown
• Requires complete break-in before normal operation
• UPC: 032227028291

Please examine all photographs carefully, as they are part of the description. The original box and printed materials may show minor storage or handling wear from age. The sale includes only the engine, muffler, box, manual, and other materials specifically shown in the photographs.

Because this is a new-old-stock engine that has been stored for several years, the buyer should inspect the glow plug, valve clearances, carburetor, internal lubrication, fuel system, mounting hardware, and general condition before attempting to start it. Follow the original Magnum instructions for lubrication, initial startup, and break-in.