from April, 1935 Aero Digest:
• Six-place high-wing monoplane. (Senior Skyrocket Model 31-50 and Senior Pacemaker Model 31-40 respectively; data on Senior Pacemaker indicated in brackets.) P. & W. Wasp “H” direct-drive engine, 550 horsepower. (Wright Whirlwind R-985-E2 engine, 420 horsepower.)
Span 50 ft. 6 in. Length overall 27 ft. 11 in. Height overall 8 ft. 6 in. Wing area 311 sq. ft. Chord 81 in.
Power loading 10.2 (12.7) lbs. per h.p. Wing loading 18 (17) lbs. per sq. ft.
Empty weight 3150 (3000) lbs. Useful load 2450 (2350) lbs. Payload 1065 (1040) lbs. Gross weight 5600 (5350) lbs.
Fuel capacity 200 (175) gal. Oil capacity 14 (12) gal.
Maximum speed 190 (165) m.p.h. Cruising speed 175 (155) m.p.h. Landing speed 54 (59) m.p.h. Service ceiling 25,000 (18,000) ft. Rate of climb 1240 (900) ft. per min. Cruising range 910-1290 (1200-1300) miles.
Fuselage: chrome moly steel tubing, welded; fairing strips of spruce; fabric covered. Wing: solid spruce spars, routed; spruce and mahogany plywood ribs; dynamically balanced ailerons; all-metal trailing edge flaps (extra). Tail group: welded moly steel tube, fin, rudder and elevators, fabric covered; wood stabilizer with spruce spars, plywood ribs, fabric covered; trim tab on trailing edge of elevators. Cantilever type landing gear equipped with 31-inch General streamlined tires, Bendix wheels and brakes; oleo shock absorber struts mounted within fuselage belly. Engine and plane controls run over ball bearing pul1eys; control bearings of cast aluminum, Alemite fitted. Oil tank is under engine cowl, with an air scoop for cooling the oil adjustable from cockpit.
Standard equipment includes Hamilton Standard propeller, Exide battery, navigation and landing lights, radio compartment.
Instruments: tachometer, oil pressure gauge, altimeter, magnetic compass, air speed indicator, rate of climb indicator, bank and turn indicator, clock, fuel gauges. Also see data in June, 1934, AERO DIGEST.