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SAAB J29

saab29


Saab's original project for the Saab-29 had envisaged it as a conventional monoplane powered by a de Havilland Goblin turbojet, but information on German swept-wing research which became available soon after the end of hostilities in Europe (combined with development of the more powerful de Havilland Ghost turbojet) resulted in redesign to incorporate these features. As the company had no experience of the behaviour of a swept wing it was decided to use a Saab Safir lightplane to test a wing of this configuration, a reduced-scale wing with 25 degrees of sweep-back being installed and flown on this aircraft. Negotiations were initiated with de Havilland for licence-production of the Ghost turbojet in Sweden.

 

Saab-J29-2


Of cantilver shoulder-wing monoplane configuration, the Saab-29 had retractable tricycle landing gear, its powerplant mounted within the rotund fuselage, and with the pilot accommodated on an ejection seat in a pressurised cockpit.

The first of four Saab-29 prototypes was flown initially on 1 September 1948, but it was not until the spring of 1951 that the aircraft was ordered into production, being the first aircraft in its class to be production-built in Western Europe.

First flown in prototype form on 1 September 1948, the initial production model was the J29A which began to enter service with the Swedish air force (Flygvapen) during May 1951 at Norrkoping.

Powered by a single Svenska Flyg­motor RM2 turbojet engine (a licence-built version of the de Havilland Ghost) some 200 or so J29As were completed before production switched to the Saab-29B which was a multi-mission machine, the interceptor variant being known as the J29B (with increased fuel)while a specialised attack derivative A29B. The A29B being able to carry a variety of external ordnance including 250-kg (551-lb) general-purpose bombs, unguided air-to-air rockets with additional air-to-ground capabil­ity.

 

The S29C was optimized for reconnaissance tasks with the Hispano 20-mm cannon being replaced by six automatic cameras. Flown for the first time during June 1953, the S29C subsequently adopted the so-called dog-tooth’ wing leading edge which improved transonic handling characteristics.

First fitted to the Saab-29D variant, the Swedish-designed afterburner re-sulted in significantly greater power but only a few of the J29D subtype were built, it being supplanted by the J29E which was the first to feature extended-chord outer wings with the ‘dog-tooth’ leading edge as standard. Both afterburner and ‘dog-tooth’ were incorporated in the definitive J29F which flew in prototype form on 20 March 1954 and possessed dual interceptor/attack capability.

saab29f
SAAB J-29F


The type remaining in production until April 1956, by which time a total of 661 had been built. They remained in service until 1958 when their gradual replacement by the Saab-32 Lansen began.

In 1961-2 30 ex-Flygvapen J 29Fs were supplied to Austria as fighter-bomber and reconnaissance aircraft, those operating in the latter role using a detachable pod housing three Vinten cameras. The J29F was retired in 1972.

 

Saab-J29-3

 

 

 

J29A
Engine: RM2 Svenska Flygmotor / De Havilland Ghost 50 (5004 lb)
Span: 11.00m (36 ft10.25 in)
Length: 10.23m (33 ft 6.75 in)
Take off weight: 7530-8375 kg (16600-18463 lb)
Max speed: 1035 kph (643 mph)
Cruise speed: 800 kph (497 mph)
Landing speed: 220 kph (137 mph)
Range: 1200 km (750 sm)  
Max. altitude: 13700 m (44950 ft)

J/A29B
Engine: RM2 Svenska Flygmotor / De Havilland Ghost 50 (5004 lb)
Span: 11.00 m (36 ft10.25 in)
Length: 10.23 m (33 ft 6.75 in)
Take off weight: 7530-8375 kg (16600-18463 lb)
Maximum speed:    1035 kph (643 mph)
Cruising speed: 800 kph (497 mph)
Landing speed: 220 kph (137 mph)
Range: 1500 km (930 sm)
Max. altitude: 13700 m (44950 ft)

S29C

Engine: RM2 Svenska Flygmotor / De Havilland Ghost 50 (5004 lb)
Span: 11.00 m (36 ft10.25 in)
Length: 10.23 m (33 ft 6.75 in)
Take off weight: 7530-8375 kg (16600-18463 lb)
Maximum speed:    1035 kph (643 mph)
Cruising speed: 800 kph (497 mph)
Landing speed: 220 kph (137 mph)
Range: 1500 km (930 sm)
Max. altitude: 13700 m (44950 ft)

J29E
Engine: RM2 Svenska Flygmotor / De Havilland Ghost 50 (5004 lb)
Span: 11.00 m (36 ft10.25 in)
Length: 10.23 m (33 ft 6.75 in)
Take off weight: 7530-8375 kg (16600-18463 lb)
Maximum speed: 1035 kph (643 mph)
Cruising speed: 800 kph (497 mph)
Landing speed: 220 kph (137 mph)
Range: 1500 km (930 sm)
Max. altitude: 13700 m (44950 ft)

J29F

Engine: RM2B Svenska Flygmotor / De Havilland Ghost 50 with afterburner (6173 lb)
Span: 11.00 m (36 ft10.25 in)
Length: 10.23 m (33 ft 6.75 in)
Height: 3.75 m(12 ft 3.5 in)
Wing area: 24.00 sq.m (258.3 sq ft)
Wheel track: 7 ft 2 in
Take off weight: 7530-8375 kg (16600-18463 lb)
Empty wt: 4600 kg (10,141 lb)
Maximum speed: 1060 kph (659 mph) at 1500m (4,920 ft)
Landing speed: 220 kph (137 mph)
Initial ROC: 3600 m/min (11,810 fpm)
Service ceiling: 15500 m (50850 ft)
Range: 1100 km (680 sm)
Ferry range: 2700 km (1,678 sm)
Cruising speed: 800 kph (497 mph)
Armament: four 20-mm Hispano cannon, plus two Rb324 air-to-air missiles, or 24 75-mm (2.95-in) rockets, or eight 180-mm (7.09-in) or 150-mm (5.9-in) rockets, or two 250-kg (551-lb) bombs.
saab-j29-ld

Saab 29 Tunnan

 

 


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