Saab 37 Viggen

Specifications

1st Flight 1967

Crew: 1

Length: 16.4 m (53 ft 10 in)

Wingspan: 10.6 m (34 ft 9 in)

Height: 5.9 m (19 ft 4 in)

Wing area: 46 m2 (500 sq ft)

Empty weight: 9,500 kg (20,944 lb)

Gross weight: 16,439 kg (36,242 lb) (AJ37 17,000 kg (37,479 lb))

Max takeoff weight: 19,274 kg (42,492 lb)

Powerplant: 1 × Volvo RM8B afterburning turbofan, 72.1 kN (16,200 lbf) thrust dry, 125 kN (28,000 lbf) with afterburner

Performance

Maximum speed: 2,231 km/h (1,386 mph, 1,205 kn) at 36,100 ft (11,003 m)

Maximum speed: Mach 2.1

Ferry range: 1,820 km (1,130 mi, 980 nmi) internal fuel only

Service ceiling: 18,000 m (59,000 ft)

Rate of climb: 203 m/s (40,000 ft/min)

Armament

1 × 30 mm Oerlikon KCA cannon with 120 rounds

6 missile stations for 2 RB71 Skyflash (only JA37), 4 AIM-120 AMRAAM (JA 37D), or 6 AIM-9 Sidewinder or 4 rocket pods (135 mm, 5.4 in).

U95 ECM pod (JA 37D)

Variants

AJ 37

Primarily a single-seat ground-attack fighter aircraft (AJ: Attack-Jakt), with a secondary fighter role. RM8A powerplant. PS 37A radar.First delivery in mid-1971,108 built, with serial numbers 37001-37108. 48 airframes upgraded to AJS 37. Partially decommissioned in 1998.

SK 37

Two-seat trainer aircraft (Sk: Skol) with no radar and reduced fuel. First flight on 2 July 1970. 17 built, with delivery from June 1972, serial numbers 37801-37817. Decommissioned in 2003, 10 airframes converted to SK 37E.

SF 37

Single-seat photographic reconnaissance aircraft (SF: Spaning Foto), with radar replaced by battery of cameras in nose, with provision for additional reconnaissance pods. It made its first flight on 21 May 1973. 28 built, with deliveries from April 1977, serial numbers 37950-37977. 25 airframes upgraded to AJSF 37. Partially decommissioned in 1998.

SH 37

(SH- Spaning Hav, reconnaissance sea) Single-seat maritime reconnaissance and strike aircraft, equipped with PS-371A radar. 27 built, with delivery from June 1975, serial numbers 37901-37927. 25 airframes upgraded to AJSH 37. Partially decommissioned in 1998.

Saab 37E Eurofighter

Proposed NATO replacement of F-104 Starfighter in 1975, none built.

Saab 37X

Proposed export version offered to Norway in 1967–68, none built.

JA 37

Primarily a single-seat all-weather interceptor fighter, with a secondary attack role. Its first flight was on 27 September 1974 with the first deliveries starting in 1979, serial numbers 37301-37449. A 10 cm (4 in) stretch in the shape of a wedge wider at the bottom than on the top of AJ 37 fuselage between canard and main wing. PS 46A LD/SD radar. Partially decommissioned in 1998, some upgraded to JA 37D.

AJS/AJSF/AJSH 37

Upgrade of some AJ/SF/SH 37 between 1993 and 1998. Avionics and software upgrade. 48 AJ 37 airframes modified. 25 SH 37 airframes modified. 25 SF 37 airframes modified. Decommissioned in 2005.

JA 37C

Upgrade of older JA 37, avionics and software upgrade.

JA 37D

Upgrade of older JA 37 between 1993 and 1998, avionics and software upgrade. 35 airframes modified.

JA 37DI

JA 37D with avionics and software modified for international duties. Instruments labelled in English and feet/knots instead of meter/kmh. 20 airframes modified.

SK 37E

Electronic warfare trainer, conversion of 10 obsolete SK 37 trainers from 1998 to 2000, serial numbers 37807-37811 & 37813-37817, decommissioned in 2007.

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