Saab 37 Viggen - Variants

Variants

in chronological order

AJ 37

Primarily a single-seat ground-attack fighter aircraft, with a secondary fighter role. First delivery in 1971, serial numbers 37001-37108. RM 8A powerplant. PS 37A radar. Partially decommissioned in 1998, some upgraded to AJS 37.

SK 37

Two-seat trainer aircraft, first delivery in 1973, serial numbers 37801-37817. No radar. Decommissioned in 2003, some airframes converted to SK 37E.

SF 37

Single-seat photographic reconnaissance aircraft, first delivery in 1975, radar replaced with four cameras, serial numbers 37950-37977. Partially decommissioned in 1998, some upgraded to AJSF 37.

SH 37

Single-seat maritime reconnaissance and strike aircraft, first delivery in 1975, PS-371A radar, serial numbers 37901-37927. Partially decommissioned in 1998, some upgraded to AJSH 37.

Saab 37E Eurofighter

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

Saab 37X

Proposed export version, none built.

JA 37

Primarily a single-seat all-weather interceptor fighter, with a secondary attack role. First delivery 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. 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.

JA 37Di

Upgrade of older JA 37, avionics and software upgrade.

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.