Cessna CR-3

Cessna CR-3
Role	Air racer
National origin	United States of America
Manufacturer	Cessna
Designer	Clyde Cessna, Eldon Cessna
First flight	June 11, 1933
Introduction	June 17, 1933
Retired	August 1933
Status	Crashed
Number built	1
Developed from	Cessna CR-2

The Cessna CR-3 was a follow on racing aircraft to the Cessna CR-2 that raced in the 1932 National Air Races.^[1]

Development

The CR-3 was ordered by air racer Johnny Livingston in response to the performance he saw when competing against the Cessna CR-2 in the 1932 National Air Races. The CR-3 was of shoulder-wing design.

Design

The CR-3 was a mid-wing radial engined taildragger racer with manual retractable landing gear and a tail skid. The propeller was from a clipped wing Monocoupe racer #14. The tail surface was designed to be neutral, without downforce in flight. The elevators experienced significant vibration in test flights without the wing root fairings installed.

Operational history

The CR-3 lasted 61 days, winning every event it competed in:

• Omaha Air Races at Omaha, Nebraska, June 17, 1933: First place.^[2]
• Minneapolis Air Races and Minneapolis, Minnesota, June 24, 1933: First place.
• American Air Races at Chicago, Illinois, July 1, 1933: The CR-3 first raced against Cessna CR-2 at these races. The CR-3 won the Baby Ruth Trophy at a speed of 201.42 mph (324.35 km/h).^[3] It also set a world speed record for aircraft with engines of under 500-cubic-inches′ (8.2 liters′) capacity at 237.4 mph (382.3 km/h).^{[citation needed]}
• Aero Digest Trophy race, July 4, 1933: First place.

En route to an airshow in August 1933, the CR-3 experienced a failure of both the tail skid and a landing gear weld that would not allow the gear to lock. Livingston bailed out over Columbus, Ohio and the CR-3 was destroyed in its ensuing crash.

Specifications

Data from Sport Aviation^{[citation needed]}

General characteristics

• Length: 17 ft (5.2 m)
• Wingspan: 18 ft 5 in (5.61 m)
• Height: 4 ft 6 in (1.37 m)
• Empty weight: 750 lb (340 kg)
• Powerplant: 1 × Warner Super Scarab Radial, 145 hp (108 kW)

Performance

• Maximum speed: 222 kn (255 mph, 410 km/h) demonstrated
• Stall speed: 56 kn (65 mph, 105 km/h)

See also

Related development

• Cessna GC-1
• Cessna CR-1
• Cessna CR-2

References

1. Sport Aviation. Feb 1958. {{cite journal}}: Missing or empty |title= (help)
2. "Cessna CR-3 History". Retrieved 16 April 2011.
3. "Cessna CR-3". Retrieved 16 April 2011.