Lear Jet 23/24/25/28/29
- CountryUnited States of America
- TypeLight corporate jets
- Powerplants23 - Two 12.7kN (2850lb) General Electric CJ610-4 turbojets. 25D/29 - Two 13.1kN (2950lb) CJ610-8As.
- Performance23 - Max speed 860km/h (465kt), max cruising speed 850km/h (460kt), economical cruising speed 817km/h (440kt). Range with max fuel and reserves 2660km (1436nm). 25D - Cruising speed 860km/h (465kt). Range with four passengers and reserves 2663km (1438nm). 29 - Max speed 883km/h (477kt), max cruising speed 836km/h (452kt), economical cruising speed 756km/h (408kt). Service ceiling 51,000ft. Range with four passengers, max fuel and reserves 2550km (1376nm).
- Weights23 - Empty 2974kg (6550lb), max takeoff 5675kg (12,500lb). 25D - Empty equipped 3465kg (7640lb), max takeoff 6805kg (15,000lb). 29 - Empty 3730kg (8224lb), max takeoff 6805kg (15,000lb).
- Dimentions23 - Wing span 10.84m (35ft 8in), length 13.18m (43ft 3in), height 3.73m (12ft 3in). Wing area 21.5m2 (231.77sq ft). 25D - Same except for length 14.50m (47ft 7in). 29 - Same as 25 except for wing span 13.35m (43ft 10in). Wing area 24.6m2 (264.5sq ft).
- Capacity23/24 - Flightcrew of two. Max seating in main cabin for six, typical seating for four. 25/28 - Flightcrew of two. Main cabin seating for up to eight passengers. 29 - Flightcrew of two and seating for six passengers.
- Production740 turbojet powered Lear Jets built, comprising 105 23s, 258 24s, 368 25s; five 28s and four 29s. In late 2002 34 23s, 211 24s, 314 25s, five 28s and four 29s were in service worldwide.
One of the world's biggest, quickest, top rated and well known arrangement of business streams, the Learjet family started with the first six to eight seat Lear Jet 23 which first flew on October 7 1963.
The 23 began in Switzerland, where William P. Lear had structured the Swiss-American Aviation Corporation (SAAC) in 1960 to produce a twin-fly fast official flying machine, the SAAC-23. This air ship was outlined and brought about by Dr.eng. Hans-Luzius Studer, who at one time had created the FFA P-16 contender. The flight science and numerous different qualities of the 23 were assumed control from the P-16. Despite the fact that it was initially wanted to produce in any event the initial 25 Lear Jets in Switzerland, creation was exchanged to the United States, where Lear had established Lear Jet Corporation.
The minor Model 23 spearheaded a completely new market portion for the light business streams, and demonstrated extremely fruitful. The principal generation 23 was conveyed in October 1964, yet was supplanted by the enhanced Model 24 in 1966 after 105 had been manufactured. The 24, which presented uprated motors and various subtle element changes, first flew in February 1966 and was conveyed from the center of that year. Improvements of the 24 incorporated the 24d, E and F, presenting changes, for example, expanded weights, pushes, and range.
The Learjet 25 presented a 1.27m (4ft 2in) fuselage stretch permitting seating for up to eight travelers and was first flown on August 12 1966, and, in the same way as the 24, various ensuing advancements were manufactured, including the B, C, and D.
In 1966 the name of the producer changed to Lear Jet Industries, and in January 1970 Gates Rubber Company, who had purchased a controlling investment, changed the name once more, to Gates Learjet Corporation.
The unsuccessful Gates Learjet 28 and 29 Longhorns are focused around the 25 yet presented another expanded compass wing fitted with winglets, which enhanced fuel effectiveness and general execution, especially payload extend and mileage. The Longhorn 28 seats up to eight travelers, the comparative measurements Longhorn 29 gives up two seats for additional extent. Creation of the family stopped in 1982.
Learjets are known for their tight accomodation. Max inside lodge width is only 1.50m (4ft 11in), max stature 1.32m (4ft 4in).
Pictures of Lear Jet 23/24/25/28/29
