The RAD aircraft engine of 1930 was a nine cylinder air cooled radial (ATC 41) producing 115hp.
Piston
Aeromarine L-8
The L-8 eight cylinder water cooled Vee of 1918 produced 192hp@1750rpm from 737.67ci and dry weight of 556.5 lb.
Aeromarine L-6
The 1917 L-6 gave 130hp@1625rpm to 215hp@3000rpm. A six cylinder inline water cooled engine of 553.25ci.
The L-6-D and L-6-G of 1917 were “D” for Direct-drive and “G” for geared-drive with dry weights of 400-500 lb.
Aeromarine D-12
The D-12 was an 898.32ci water cooled 12 cylinder Vee producing 150hp@1400rpm. The dry weight is 750 lb.
Aeromarine B-90
The 1915 Aeromarine B-90 was a 423.2ci geared eight cylinder water cooled Vee. Cast iron cylinders were set at 90° and the propshaft was mounted on two tapered roller bearings capable of end thrust in either direction. Geared prop speed at .571.
148hp@2275rpm
166hp@2635rpm
Dry wt: 460 lb
Aeromarine B-45
The 1915 B-45 was a water cooled eight cylinder Vee. The cast aluminum cylinders were set at 45° and the geared prop speed at .571.
150hp@2275rpm
170hp@2635rpm geared
Dry wt: 420 lb
Aeromarine AR-3 / AR-5
Three cylinder aircooled radial
Aeromarine AR-3
1931
ATC 74
50hp
Aeromarine AR-3-40
ATC 119
40hp
Aeromarine AR-5
65hp
Aeromarine 90 hp / K-6
Built in 1914, a geared version was K-6. The prop speed was reduced by .571 gear ratio.
Aeromarine 90hp
Power: 85hp@1400rpm
Capacity: 449.16ci
Cylinders: 6 inline
Cooling: water
Dry weight: 430 lb
Aeromarine K-6
Power: 100hp@2000rpm
Capacity: 449.16ci
Cylinders: 6 inline
Cooling: water
Dry weight: 435 lb
Aeromarine WM
Reportedly an experiment with variable-camber wing using a De Havilland 4B. It is uncertain if it actually flew.
Engine: Liberty 12, 400 hp
Seats: 1
Aeromarine PG-1
Built by Engineering Division and Boeing in 1922 as an army ground-attack pursuit aircraft, the PG-1 had a 37mm cannon in its propshaft and lots of armor plate. Ultimately it was rejected because of pilot’s lack of forward visibility. First flying on 22 August 1922, three were built (AS64245-64247). The first PG-1 went to McCook Field as project P-240. The only pursuit aircraft with a “PG” designation, which was later transferred to the Powered Glider category. A second type of engine was tried in the PG-1; the Packard 1A of 350 hp.
Engine: Wright K-2, 330hp / Packard 1A-1237, 350hp
Wing span (upper): 40 ft 1 in
Wing span (lower): 37 ft 2 in
Length: 24 ft 6 in
Payload: 888 lb
Max speed: 130 mph
Cruise speed: 124 mph
Stall speed: 58 mph
Range: 195 sm
Ceiling: 17,000 ft
Seats: 1
