Below you can view more photos of Mr. Ogawa’s engines and the O.S. factory. Click on images to enlarge.
O.S. Company Building
The office building and main factory for O.S. (Photo reproduced with permission from O.S. Engines Co. Ltd. and Hobbico Inc.)
O.S. Type-8 Engines
Approximately one week’s production run of O.S. Type-8 engines in 1942. (Photo reproduced with permission from O.S. Engines Co. Ltd. and Hobbico Inc.)
O.S. Company Building
The newer O.S. factory building in Nara, Japan. (Photo reproduced with permission from O.S. Engines Co. Ltd. and Hobbico Inc.)
O.S. Company Factory
A shot of the O.S. production line at the Nara plant. (Photo reproduced with permission from O.S. Engines Co. Ltd. and Hobbico Inc.)
Mr. Ogawa and Guests on a Locomotive
Mr. Ogawa takes his guests for a ride behind one of his locomotives. Mr. Hans Graupner and Mr. R. Robitschko of West Germany are the passengers in this photo. (Photo reproduced with permission from O.S. Engines Co. Ltd. and Hobbico Inc.)
Mr. Ogawa on his Locomotive
Mr. Ogawa running the first test on his British Railways Britannia Express locomotive. (Photo reproduced with permission from O.S. Engines Co. Ltd. and Hobbico Inc.)
Graupner-O.S. Wankel Engine
O.S. partnered with Graupner to produce the first Wankel model airplane engine in 1970. This particular engine was on loan to the Craftsmanship Museum courtesy of Joshua Vest.
Graupner-O.S. Wankel Engine
Graupner-O.S. Wankel Engine
Graupner-O.S. Wankel Engine
O.S. FS-120S-SP Supercharged Engine
This is an O.S. FS-120S-SP supercharged single-cylinder engine, which was produced in the 1990’s. (Engine donated by Jerry Nelson.)
O.S. FS-120S-SP Supercharged Engine
This is a 4-cycle, single-cylinder supercharged engine. The supercharger is a Roots type. Displacement is 1.200 cubic inches.
O.S. FS-120S-SP Supercharged Engine
The FS-120S-SP has a bore of 1.197 inches, and a stroke of 1.083 inches. The rpm range is 2,000-11,000. Max power is 2.50 bhp. Total weight without the muffler is 36.30 ounces.
O.S. FS-120S-SP Supercharged Engine
The FS-120S-SP was built for model aircraft flying pattern/aerobatics. Jerry Nelson donated this brand new engine to the Craftsmanship Museum in the original box, with all original paperwork and tools.
O.S. MAX-46AX 2-Cycle Engine
This engine from 2003 is more typical of modern O.S. production engines. It displaces 0.455 cubic inches, or 7.45 cc. The bore is 0.866″ and stroke is 0.772″. (Engine donated by Art Pesch/Hobbico.)
O.S. MAX-46AX 2-Cycle Engine
This engine runs at an rpm range from 2,000 to 17,000, and weighs 13.2 oz (375 g). The silencer assembly adds 4.02 oz.
