Aircraft Holding Corp Murray-Atlas
The Murray-Atlas is a 1920s eight cylinder fixed radial, air cooled two stroke aero engine. The cylinders are clamped between the two halves of the crankcase eliminating hold down bolts.
The pistons and cylinder heads can be scraped of carbon through the exhausts without dismantling the engine.
The Murray-Atlas supercharger has variable pressure of 1.5 to 10 /b/sq.in.
A starter and propeller hub were available at extra cost.
Rating: 120 hp at 1400 rpm
Displacement: 646 cu.in
Compression ratio: 6/1
Bore: 4 3/8 in
Stroke: 5 3/8 in
Diameter: 36 in
Length: 26 in
Weight: 260 lb
Fuel consumption: not more than .065 lb/hp/hr
Oil consumption: not more than .04 lb/hp/hr
Lubrication: Force feed, 3 outlet pump; scavenger pump
Ignition: Dual Scintilla
Spark plugs: 2 per cylinder Bosch