Comparison of Lockheed Martin F-35 Lightning II and Saab AJ-37 Viggen

Attribute	Lockheed Martin F-35 Lightning II ×	Saab AJ-37 Viggen ×
General
Manufacturer	Lockheed Martin Aeronautics	Saab Gripen
Model	Lockheed Martin F-35 Lightning II	Saab AJ-37 Viggen
Country	United States	Sweden
Manufactured from (year)	2011	1971
Manufactured to (year)	-	2005
Type	Fighter Jets	Fighter Jets
Icao	F35	SB37
Performance
Engine	1x Pratt & Whitney F135-PW-100	1x 1 × Volvo RM 8B afterburning turbofan
Power, lbf (lbf)	43,000	28,110
Avionics	JSF Cooperative Avionics	Saab CK 37, Ericsson PS 37 X-band monopulse radar, Decca Type 72 Doppler navigation radar
Max cruise speed (km/h)	1,932	2,232
Approach speed (km/h)	463	220
Travel range (km)	2,778	2,037
Fuel economy (km/l)	0.46	0.235
Service ceiling (m)	19,812	18,288
Rate of climb (m/sec)	203.2	203.33
Take off distance (m)	168	400
Landing distance (m)	213	450
Weights
Max take off weight (kg)	31,751	22,500
Max payload (kg)	8,160	3,600
Fuel tank capacity (l)	10,448	5,701
Dimensions
Seats	1	1
Exterior length (m)	15.7	16.4
Tail height (m)	4.48	5.9
Fuselage diameter (m)	-	2.5
Wing span (m)	10.7	10.6
Wing tips	No Winglets	No Winglets