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Learjet 25

By Wikipedia,
the free encyclopedia,

http://en.wikipedia.org/wiki/Learjet_25

Learjet 25
NASA Learjet 25
Role Business jet
Manufacturer Learjet
First flight August 12, 1966
Introduced November 1967
Primary users Private
Military
NASA

The Learjet 25 is an American ten seat (two crew and eight passengers) twin-engined, high speed business jet aircraft. Manufactured by Learjet as a stretched version of the Learjet 24.

Development

The first Model 25 flew on August 12, 1966, and the first delivery was in November 1967.

The Learjet 25 is similar to the Model 24 but is 1.27 m (4 ft 2 in) longer, allowing for three additional passengers. In 1970 the Learjet 25B was produced along with the Learjet 25C in the same year.

The aircraft has two General Electric CJ610-6 (or CJ610-8) turbojet engines. Baggage is stowed in a compartment at the rear of the cabin.

Operations

The cabin interior can be converted to several different configurations to allow for cargo and medevacs. Due to the ease of converting the cabin the Learjet 25 has found a niche as a medevac aircraft. This is achieved by removing the starboard seating to allow for a stretcher, mounting oxygen bottles and Intravenous drip equipment. The two flight crew are then supplemented by either a doctor or flight nurse or both. The Model 25C also has an optional two bed sleeping compartment.

Despite being used at lower altitudes and equipped with small landing gear, the Learjet can land on gravel runways if it is fitted with a special "gravel kit". It is possible for gravel from an improperly packed gravel runway to be sucked into the engines causing "Foreign object damage", thus the need for the kit.


Learjet 25D. It flies lifeguard (medevac) missions out of Centennial Airport
Learjet 25D. It flies lifeguard (medevac) missions out of Centennial Airport

Learjet 25 (C-GBFP) registered to Adlair Aviation at Cambridge Bay Airport, Nunavut, Canada. This aircraft is fully equipped for medevac flights.
Learjet 25 (C-GBFP) registered to Adlair Aviation at Cambridge Bay Airport, Nunavut, Canada. This aircraft is fully equipped for medevac flights.

Another view of Learjet 25D
Another view of Learjet 25D

In 1974 the Peruvian Air Force purchased two 25Bs with a belly pod that contained an aerial survey camera.

Variants

The ICAO designator as used in flight plans for all Learjet 25 models is LJ25.

Learjet 25A

FAA certified on October 10, 1967.

Learjet 25B

Improved version. FAA certified on September 4, 1970.

Learjet 25C

Improved version with greater fuel capacity. FAA certified on September 4, 1970.

Learjet 25D

Longe-range version.

Learjet 26

Unofficial designation of a Model 25 which was equipped with Garret AiResearch TFE731-2 turbofan engines for a developmental flight test program. The aircraft, N26GL, first flew with the engines on May 19, 1971. The success of the flights led to the development of the Model 35.

Learjet 25G

Introduced September 23, 1980. During a series of demonstration flights lasting from June 9 to 18, 1982, the 25G broke a number of long-distance speed and fuel consumption records.

Operators

Military operators

 Argentina
 Bolivia
 Ecuador
 Mexico
 Peru
 United States
 Yugoslavia

Specifications (Learjet 25B)

General characteristics

  • Crew: Two pilots
  • Capacity: 8 passengers
  • Length: 47 ft 7 in (14.5 m)
  • Wingspan: 35 ft 7 in (10.84 m)
  • Height: 12 ft 3 (3.73 m)
  • Wing area: 231.77 ft² (21.53 m²)
  • Empty weight: 8,223 lb (3,730 kg)
  • Loaded weight: 7,755 lb (3,517 kg)
  • Max takeoff weight: 15,500 lb (6,803 kg)
  • Powerplant:General Electric CJ610-6 or CJ610-8 turbojets

Performance

External links

See also

Related content

Related development

  • Rocketplane XP — a heavily modified LearJet 25 reconfigured as a suborbital spaceplane by Rocketplane Limited, Inc.

Related lists

List of aircraft





Text from Wikipedia is available under the Creative Commons Attribution/Share-Alike License; additional terms may apply.


Published - July 2009














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