Arup S-4

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
Number built 1
Developed from ARUP S-3

The Arup S-4 is the last in a series of round-wing aircraft from C.L. Synder.[1]

Contents

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.

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.[3]

Variants

  • Hoffman Flying Wing a design based on the Arup S-4 aircraft.[4]
  • Milt Hatfield Little Bird - similar design.[citation needed]

Aircraft on display

A replica is on display in the atrium of South Bend Airport [5]

Specifications (variant specified)

Data from Janes

General characteristics

References

  1. ^ Avrocar: Canada's flying saucer : the story of Avro Canada's secret projects. 
  2. ^ "Round aircraft designs". http://celticowboy.com/Round%20Aircraft%20Designs.htm. Retrieved 7 September 2011. 
  3. ^ "Low AR-planes". http://www.nurflugel.com/Nurflugel/n_o_d/weird_04.htm. Retrieved 7 September 2011. 
  4. ^ Experimenter. December 1957. 
  5. ^ "KSBN airport". http://jetphotos.net/viewphoto.php?id=349450&nseq=6. Retrieved 7 September 2011. 

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