PORTERFIELD MODEL 35-70/35-90

1935

Plane & Pilot

Tuesday, November 30, 1999 at 12:00 AM ET

Verified

Edited By: Omar Filipović

Key Takeaways:

The Porterfield 35-70 and 35-90 models, developed by E.E. Porterfield and produced from 1935 by Porterfield Aircraft Corp., were two-seat aircraft.
They were primarily powered by 70-hp LeBlond or 90-hp Warner Scarab Junior radial engines, with other versions utilizing 50-75 hp Continental or Lycoming engines.
Key features included an enclosed cabin with removable dual controls, a fabric-covered steel-tube fuselage, and fabric-covered spruce wing construction, achieving performance such as a 135 mph top speed and 20,000 ft ceiling.

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STANDARD DATA: Seats 2. Gross wt. 1,326. Empty wt. 823. Fuel capacity 18. Engine 90-hp Warner Scarab Junior.
PERFORMANCE: Top mph 135. Cruise mph 120. Stall mph 40. Initial climb rate 1,050. Ceiling 20,000. Range 336.

Both Porterfield models entered production in 1935 and were powered by either the 70-hp LeBlond fivecylinder or the 90-hp Warner Scarab Junior five-cylinder radial engines; thus, the numerical designations 35-70 and 35-90 apply. The Porterfield Aircraft Corp. of Kansas City, Missouri, had been founded one year, and the development work was done by E.E. Porterfield, who was formerly president of the American Eagle Aircraft Corp. Other versions of the first Porterfields were built with 50, 65, and 75-hp Continental or Lycoming engines. The enclosed cabin for two persons had dual controls, but they were quickly removable from either seat. Wing construction was two spruce spars, spruce and plywood ribs, and fabric covering. The fuselage was a fabric-covered steel-tube structure.