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GeeBee C 8 Eightster

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Manufacturer
  
Granville Brothers Aircraft

The C-8 Eightster was a single-engine airliner developed by Granville Brothers Aircraft that did not go into production.

Contents

Design and development

The C-8 was an uncompleted design for a single-engine airliner, a wire-braced low-wing monoplane with conventional landing gear and a radial engine. Entry was from a small left rear door in the fuselage. Passenger visibility came from three semi-circular windows along each side. The main landing gear was faired similar to the Gee-Bee racers.

The Granville brothers also designed a series of sportster derivatives, including the C-4 Fourster and C-6 Sixster. The C-8 was the only one to be constructed, being partially completed by the time the company went into liquidation.

Variants

Gee Bee C Sportster
Single-seat sport / racing aircraft; basis for the C family.
C-4 Fourster
Four-seater powered by a 400 hp (300 kW) Pratt & Whitney R-985 Wasp Junior, not built.
C-6 Sixster
Six-seater, not built.
C-8 Eightster
Eight-seater, to have been powered by either a Pratt & Whitney R-1690 Hornet or a 700 hp (520 kW) Wright R-1820. The prototype was partially complete at the time of Granville Brothers bankruptcy.

Specifications (C-8)

Data from

General characteristics

  • Crew: one
  • Capacity: eight
  • Length: 32 ft 11 in (10.03 m)
  • Wingspan: 47 ft 9 in (14.55 m)
  • Powerplant: 1 × Pratt & Whitney R-1690 Hornet 9-cyl. air-cooled radial piston engine, 700 hp (520 kW)
  • Propellers: 2-bladed variable pitch metal propeller
  • Performance

  • Maximum speed: 255 mph (410 km/h; 222 kn)
  • Cruise speed: 190 mph (306 km/h; 165 kn)
  • Range: 870 mi (756 nmi; 1,400 km)
  • References

    GeeBee C-8 Eightster Wikipedia