Arup S-4

S-4
Role Blended wing body aircraft
National origin United States of America
Manufacturer Arup Manufacturing Corporation
Designer Dr. C.L. Snyder, Raoul Hoffman
First flight 19 March 1935
Introduction 1935
Retired bought and flown with a patched crack in its wood spar to a museam in the dallas ft worth area in the early 70s
Number built 1
Developed from Arup S-3

The Arup S-4 (Model 104) is the last in a series of round-wing aircraft from C.L. Snyder.[1]

Design and development

The S-4 was engineered by Raoul Hoffman. The test pilot was Glenn Doolittle, a cousin of Jimmy Doolittle.[2]

The S-4 used a low aspect ratio, circular planform wing with a conventional landing gear and a small rudder with attached elevator on the rear of the fuselage. The aircraft was entered through a door mounted on the bottom of the aircraft.[3]

Operational history

The S-4 prototype flew extensively in promotional demonstrations. The S-4 was emblazoned with Sears Roebuck and Company logos. The aircraft was scrapped for war materials in World War II.[4] Mabey scavenged for instru and engine but not scrapped

Variants

Aircraft on display

A replica is on display in the atrium of South Bend Airport [7]

Specifications (S-4)

Data from Janes, Popular Aviation

General characteristics


References

  1. Avrocar: Canada's flying saucer : the story of Avro Canada's secret projects.
  2. "Round aircraft designs". Retrieved 7 September 2011.
  3. Popular Aviation: 92. August 1935. Missing or empty |title= (help)
  4. "Low AR-planes". Retrieved 7 September 2011.
  5. Experimenter. December 1957. Missing or empty |title= (help)
  6. Bernard L Rice (March 1987). "Milt's Little Bird". Sport Aviation: 43.
  7. "KSBN airport". Retrieved 7 September 2011.
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