See "Aircraft Holding Corp." and "Murray-Willat".

The original Murray rotary started with 25 HP, it had no valves as it was a two-stroke, six-cylinder radial. It was air cooled with 146 cu. in. of displacement, very small therefore. See the photo below.

“Murray, 25 hp”

-When we observe the fragility of the cylinder located at “7 o'clock” seen from the front, it is almost a miniature work. It has less than 25 cu. in. of displacement per cylinder.

-On its way through Aircraft Holding Corp. the engines were bigger, as the “Ajax” gave 80 HP and the “Atlas” 120 HP.

-Another view of the same Murray 25 hp six-cylinder rotary two-stroke engine with supercharger and 146 cu. in. of displacement.

-They were designed by Joseph J Murray in 1911, and were manufactured by the Aircraft Holding Corp.

“Murray 25 hp”

-Another engine that we provide is the Ajax that gave 70 hp at 1,200 rpm. This also was a two-stroke, six-cylinder. It displaced 375 cu. in.

“Murray Ajax”