The same 2.6 horsepower as many 200-size power plants — with the dimensions and weight of a 120-size engine.
Offers a broad power band to suit a variety of models.
Because it's a pumped 4-stroke, you'll enjoy plentiful power regardless of tank position, attitude or fuel level
Instead of oil venting through the crankcase, it's re-circulated to lubricate working parts — reducing friction and wear as well as cowl cleanup.
O.S. is legendary for four-stroke superiority, tuneability, performance, technology and ease of operation. Here is another fabulous large displacement any place you can enjoy more power without the increase in size. It's easy to retrofit the 155FS-a in your giant-scale aircraft - and enjoy consistent, 200-size power now and less cleanup in the long run! The 155FS-a is a single cylinder overhead valve four cycle engine equipped with a fuel pump system. The PD-08 pump is designed for bigger models. With the 70R carburetor integrated with the pump, it ensures stable fuel delivery at all times.
