Rutan Grizzly

Short description: Tandem-wing STOL research aircraft

Grizzly

Rutan Grizzly at the EAA AirVenture Museum, Oshkosh. Image courtesy by TDL.

General information
Type| Tandem-wing STOL research aircraft
Manufacturer| Rutan Aircraft Factory
Designer|

Burt Rutan

Number built| 1
History
First flight| January 22, 1982

The Rutan Model 72 Grizzly is a tandem-wing STOL research aircraft designed by Burt Rutan, now preserved at the EAA AirVenture Museum, Oshkosh. The aircraft exhibited excellent short take-off and landing (STOL) capabilities.

## Contents

* 1 Design and development
* 2 Specifications
* 3 References
* 4 External links

## Design and development

This composite-construction aircraft features three lifting surfaces: A front wing with approximately half the span of the main wing and a cruciform empennage. Front and main wings are connected by a pair of struts with square cross-section which also serve as fuel tanks. Both wings carry Fowler flaps on part of their span for STOL. The fixed tail-wheel undercarriage has four low-pressure, small-diameter main-wheels, on two cantilever spring struts, with a spring mounted tail-wheel assembly. The four-seat cabin is completely enclosed with a combination of flat, squared and outward-bulged tear-drop shaped windows.

After completion of testing the Grizzly was donated to the EAA AirVenture Museum, Oshkosh in 1997.

## Specifications

Data from Jane's all the World's Aircraft 1984–85[1]

General characteristics

* Crew: 1
* Capacity: 3 passengers
* Powerplant: 1 × Lycoming O-360B 4-cylinder air-cooled horizontally-opposed piston engine, 180 hp (130 kW)
* Propellers: 2-bladed Hartzell Q-tip constant speed propeller

Performance

* Stall speed: 35 kn (40 mph, 65 km/h)

## References

1. ↑ Taylor, John W. R., ed (1984). Jane's all the World's Aircraft 1984–85 (75th ed.). London: Jane's Publishing Co.. pp. 492–493. ISBN 0-7106-0801-2.

## External links

* Aerofiles Grizzly information

* v
* t
* e

Rutan Aircraft Factory and Scaled Composites aircraft and spacecraft

Aircraft (main designs)|

* VariViggen
* VariEze
* Quickie
* Long-EZ
* Voyager
* Pond Racer
* Boomerang
* Proteus
* Model 367 BiPod
* Model 401

Aircraft (as subcontractor)|

* Adam A500
* Bell Eagle Eye
* General Motors Ultralite
* Toyota TAA-1
* Virgin Atlantic GlobalFlyer
* Williams V-Jet II
* X-47A Pegasus

Technology demonstrators|

* ARES
* ATTT
* BiPod
* Catbird
* Grizzly
* Triumph
* Model 395 (uncrewed)
* Model 396 (uncrewed)
* Vantage

Rocketcraft (as subcontractor)|

* McDonnell Douglas DC-X
* Rotary Rocket

Spaceflight program|

| Programs / Ships|

* SpaceShipOne
* White Knight One
* SpaceShipTwo
* VSS Enterprise†
* VSS Unity
* White Knight Two
* VMS Eve
* VMS Spirit of Steve Fossett
* RocketMotorTwo
* SpaceShipThree (cancelled)
* Stratolaunch Roc

|

Ansari X Prize flights|

* Tier One
* 11P
* 13P
* 14P
* 15P
* 16P
* 17P

* The Spaceship Company
* Mojave Aerospace Ventures

Notable people|

* Burt Rutan (founder)
* Doug Shane (former president)
* Michael Alsbury† (test pilot)
* Mike Melvill (vice president/general manager, test pilot)
* Brian Binnie (manager, test pilot)
* Peter Siebold (director of flight operations, test pilot)
* Paul Allen (SpaceShipOne sole investor)

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