Rutan Voyager

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Model 76 Voyager

Voyager returning from its flight

Type Record plane
Manufacturer Rutan Aircraft Factory
Designed by Burt Rutan
Maiden flight 22 June 1984
Introduced 1984
Retired 1987
Number built 1

The Model 76 Voyager was the first aircraft to fly around the world without stopping or refueling. It was piloted by Dick Rutan and Jeana Yeager, who took off from Edwards Air Force Base's 15,000 foot (4,600 m) runway in the Mojave Desert on December 14, 1986. Their flight ended successfully 9 days, 3 minutes and 44 seconds later, on December 23. They flew westerly 26,366 statute miles (42,432 km; the FAI accredited distance is 40,212 km)[1] at an average altitude of 11,000 feet (3.4 km). This broke a previous record set by a United States Air Force crew piloting a Boeing B-52 that flew 12,532 miles (20,168 km) in 1962.

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[edit] Record flight

Voyager's takeoff took place at 8:01 AM local time. As the plane accelerated, the tips of the wings, which were heavily loaded with fuel, were damaged as they scraped against the runway (see photo below), ultimately causing pieces to break off at the ends. The aircraft accelerated very slowly and needed approximately 14,200 feet (4.3 km) of the runway to gain enough speed to lift from the ground, the wings arching up dramatically just before take-off. During the flight, the two pilots had to deal with extremely cramped quarters. To reduce stress, the two intended to fly the plane in three-hour shifts, but this did not prove to be very successful and they became extremely fatigued.

The damaged left wingtip of Voyager
The damaged left wingtip of Voyager

The plane also continuously reminded the pilots of its fragility. They had to maneuver around bad weather numerous times, most perilously around the 600 mile (1,000 km) wide Typhoon Marge. Libya denied access to the country's airspace, forcing precious fuel to be used. As they neared California to land, a fuel pump failed and had to be replaced with its twin pumping fuel from the other side of the aircraft. The plane safely came back to Earth, touching down at 8:06 AM at the same airfield. The average speed for the flight was 116 miles per hour (187 km/h).

[edit] Aircraft development

Voyager on display in the National Air and Space Museum
Voyager on display in the National Air and Space Museum

The aircraft was first imagined by Jeana Yeager, Dick and his brother Burt Rutan as they were at lunch in 1981. Like many other inventions, the initial idea was first sketched out on the back of a napkin. The Voyager was built mainly by a group of volunteers working under both the Rutan Aircraft Factory and an organization set up under the name Voyager Aircraft (it was not, as is sometimes believed, built by Scaled Composites).[2] The airframe, largely made of fiberglass, carbon fiber, and Kevlar, weighed 939 pounds (426 kg) when empty[3] . However, when it was fully loaded before the historic flight, it weighed 9,694.5 pounds (4397.3 kg). The aircraft had an estimated lift to drag ratio (L/D) of 27 [4].

Voyager had front and rear propellers, powered by separate engines. The rear engine, a water-cooled Teledyne Continental IOL-200, was planned to be operated throughout the flight. The front engine, an air-cooled Teledyne Continental O-240, was operated to provide additional power for takeoff and the initial part of the flight at heavy weights. Voyager was built in Mojave, California, over a period of 5 years. It is now on display at the Smithsonian Institution's National Air and Space Museum in Washington, DC.

[edit] Specifications

Data from Smithsonian National Air and Space Museum

General characteristics

  • Crew: Two pilots
  • Length: 29 ft 2 in (8.9 m)
  • Wingspan: 110 ft 8 in (33.8 m)
  • Height: 10 ft 3 in (3.1 m)
  • Empty weight: 2250 lb (1020.6 kg)
  • Gross weight: 9694.5 lb (4397.4 kg)
  • Powerplant: 1 × Teledyne Continental 0-240, 130 hp ( kW)
1 × Teledyne Continental IOL-200, 110 hp ( kW)

Performance

  • Maximum speed: 121.99 mph (196 km/h)
  • Range: 24,986 miles (42,212 km)
  • Endurance: 216 hours

[edit] See also

[edit] References

  1. ^ Official FAI database. Retrieved on 2007-09-05.
  2. ^ Scaled Composites' Voyager web page
  3. ^ Smithsonian National Air and Space Museum
  4. ^ David Noland, "Steve Fossett and Burt Rutan's Ultimate Solo: Behind the Scenes," Popular Mechanics, Feb. 2005 (web version)