page_title: Granville Gee Bee R-6
section_title: Specifications (Granville Gee Bee R-6H)
hierarchical_section_title: Granville Gee Bee R-6 / Specifications (Granville Gee Bee R-6H)
caption_attribution_description: English: Catalog #: 01_00091511 Title: Gee Bee, Q.E.D. Corporation Name: Granville Brothers (Gee Bee) Designation: Q.E.D. Additional Information: USA Original configuration built for Jackie Cochran. Repository: San Diego Air and Space Museum Archive
context_page_description: The sole Granville Gee Bee R-6 International Super Sportster, named "Q.E.D." Quod Erat Demonstrandum, and later named "Conquistador del Cielo", was the last in a series of racing and touring monoplane aircraft from the Granville Brothers. The R-6H was dogged with bad luck throughout its career and had the unfortunate distinction of never finishing any race it entered.
context_section_description: Data from A legacy of speed - The Gee Bee Racers
  General characteristics
  Crew: One
  Capacity: One passenger
  Length: 27 ft 2 in (8.28 m)
  Wingspan: 34 ft 3 in (10.44 m) 
  Wing dihedral: 4.5°
  Height: 9 ft 6 in (2.90 m)
  Wing area: 212 sq ft (19.7 m²)
  Airfoil: modified NACA M-6 section
  Empty weight: 3,144 lb (1,426 kg)
  Gross weight: 6,500 lb (2,948 kg)
  Fuel capacity: 400 US gal (1,500 l; 330 imp gal)
  Oil capacity: 28 US gal (110 l; 23 imp gal)
  Undercarriage track: 90 in (2.3 m)
  Powerplant: 1 × Pratt & Whitney Hornet SD 1,690 cu in (27.7 l) 9-cylinder air-cooled radial engine, 675 hp (503 kW)
  Propellers: 2-bladed Hamilton Standard controllable pitch propeller
  Performance
  Maximum speed: 295 mph (475 km/h, 256 kn)
  Cruise speed: 260 mph (420 km/h, 230 kn)
  Wing loading: 36 lb/sq ft (180 kg/m²) at maximum weight
caption: Granville Gee Bee R-6H 3-view drawing
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