ssful As Applied to U. S. Model WM Mail Airplane Demonstration of the Loening Lateral Pressure Equalizer By Paul G. Zimmermann, M.E. Successful tests of new type of transverse airplane control, power the pilot needs to apply to his control stick. He Engineer in Charge, Airplane Division, Aeromarine… … ning at 1725 r.p.m. with the regular club propeller 9 ft. 2 in. Skeleton of the Aeromarine iring built for the WU mail in diameter and 7 ft. 6 in. pitch. airplane Aircraft Radio Development The ship has been flown for twenty minutes at 1075 r.p.m. with the airspeed indicator showing 08 m.p.h.…
Aviation Week
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