O.S. Engine OSMG1555 GT55 Compact RC Airplane Powerplant  [OSMG1555]

GT55 Power Overview for Model Aircraft

The O.S. Engine GT55 Gas Engine, model OSMG1555, is aimed at fliers who want a compact, well engineered power unit. Its layout suits a range of sport and pattern airframes where steady power and cooling matter.

Cooled Head and Integrated Case Construction

This GT55 features many deep, narrow cooling fins on the head and crankcase to help dissipate heat during extended flights. The one-piece crankcase design reduces sealing parts and keeps internal tolerances tight for consistent operation.

Forward Carburetor Benefits and Installation Notes

A front-mounted carburetor aids cooling and helps maintain even fueling under load. Reduced standoff length tightens the mounting footprint and lessens vibration. Throttle and choke linkages mount directly for a tidy installation.

IG-01 Ignition System Explained

The IG-01 Capacitive Discharge Ignition utilises a microcomputer for precise spark advance and magnetic timing sensing. It copes well with damp plugs, delivers dependable starting, and draws very little current when idle.

This engine suits pilots who want a durable gas motor with modern ignition and a layout that simplifies installation and cooling management.