IAI Westwind Business jet
IAI Westwind is a business jet that became a cornerstone of the Israeli aircraft manufacturing industry and remained in production for twenty years.
Role : Business jet
Manufacturer : Israel Aircraft Industries
First flight : 2 January 1963
Introduced : 1965
Status : Active service
Primary user : Pel-Air
Produced : 1965-1987
Number built : 442
The Westwind was originally designed in the United States by Aero Commander as a development of its twin-propeller namesake aircraft, first flying on 2 January 1963 as the Aero Commander 1121 Jet Commander.
Jet Commander production amounted to 150 aircraft in the United States and Israel before IAI undertook a series of modifications to create the 1123 Westwind. These included stretching the fuselage and increased maximum takeoff, maximum landing, and maximum zero-fuel weights, with the wing modified to incorporate double-slotted flaps and drooped leading edges and tip tanks.
IAI Westwind Variants
- 1121 Jet Commander
- Original production version, powered by two General Electric CJ610-1 engines developing 2,850 lbf (12,700 N) each; or modified with two CJ610-5 engines developing 2,950 lbf (13,100 N) each. 120 built including two prototypes.
- Slightly modified version with CJ610-1 engines. Eleven built.
- 1121B Commodore
- Version manufactured with CJ610-5 engines. Nineteen built.
- Improved version developed but not put into production; two aircraft built and subsequently converted to 1123 Westwinds.
- 1123 Westwind
- Improved version of the 1121. The cabin was stretched by 0.51m (1 ft 8in) and the aircraft was fitted with more powerful CJ610-9 engines developing 3,100 lbf (14,000 N) each and a Microturbo Saphir III auxiliary power unit (APU).36 built
- 1124 Westwind
- Greatly improved version powered by two Garrett TFE731-3-1G turbofan engines developing 3,700 lbf (16,000 N) each, APU deleted.
- 1124 Westwind I
- Name given to 1124 after introduction of Westwind II.
- 1124N Sea Scan
- Maritime surveillance aircraft.
- 1124A Westwind II
- Refined version of the 1124 built from 1980 onwards.
IAI Westwind Specifications
- Crew: Two (pilot & co-pilot)
- Capacity: Up to 10 passengers
- Length: 15.93 m (52 ft 3 in)
- Wingspan: 13.65 m (44 ft 9½ in)
- Height: 4.81 m (15 ft 9½ in)
- Wing area: 28.64 m² (308.3 ft²)
- Empty weight: 6,010 kg (13,250 lb)
- Max takeoff weight: 10,660 kg (23,500 lb)
- Powerplant: 2 × Garrett TFE731-3-1G turbofan engines, 16.46 kN (3,700 lbf) each
- Maximum speed: 868 km/h (469 knots, 539 mph) at 8,840 m (29,000 ft)
- Cruise speed: 723 km/h (390 knots, 449 mph) econ cruise, at 11,890–12,500 m (39,000–41,000 ft)
- Stall speed: 184 km/h (99 knots, 114 mph) CAS, flaps down, engines idling
- Range: 4,430 km (2,392 nmi, 2,770 mi) with maximum payload
- Service ceiling: 13,720 m (45,000 ft) (max certificated ceiling)
- Rate of climb: 25.4 m/s (5,000 ft/min)