Data for JAS 39C Gripen
Length: 14.1 m
Span: 8.4 m
Height: 4.5 m
Empty weight: 5700 kg
Normal take off weight: 8500 kg in fighter configuration
Payload: 5300 kg
Fuel, internal: 3000 litres approx (my estimate based on other,
External: 3800 litres official, numbers)
Max take off weight: 14000 kg
Range: 3000 km ferry range
Max speed: M 1.15 (1400 km/h) at sea level, close to Mach 2 at altitude
Acceleration: M 0.5 to M 1.1 at low altitude in 30 s
Turn performance: 9 G sustained, G onset rate at least 6 G/s (1-9 G in 1.2 s), min -3 G,
20+ deg/s sustained, 30 deg/s instantaneous
Climb rate: <100 s from brake release to 10 km altitude
180 s approx to 14 km
Ground turn around: <10 min with a crew of six
Engine: Volvo Aero RM12 (developed from GE F404 with the changes being
at least new fan, afterburner flame holder and accessories, partly
to make it more suitable to a single engine aircraft)
Max thrust: approx 54 kN, 80.5 kN with reheat
Airflow 68 kg/s, compression ratio 27.5:1, mass 1055 kg,
overall length 4.04 m, diameter 0.884 m, inlet diameter 0.709 m
Radar: Ericsson PS-05/A pulse doppler radar
(can count anchored ships and follow road traffic at at least 90 km
and detect typical fighter sized targets at 120 km).
Total mass 156 kg, antenna assembly 25 kg, antenna diameter 0.600 m,
Max power consumption 8.2 kW (114/200V 400Hz AC) and 250 kW 28V.
Predicted MTBF: 170 hours (air operation)
Cooling air: 85g/s at 0oC, Cooling liquid: 3.5kW to be absored.
Electrical interface: MIL-STD-1553B data bus and fibre optic video
output to the display system.
Air to air scanning at 60 (at first 50) deg/s in either 2 120 deg bars,
2 60 deg bars or 4 30 deg bars. Surface mapping and search across 5 x 5 km
to 40 x 40 km with GMTI speed adjustable by the pilot.
Four basic air to air modes: Track While Search, Priority Target Tracking
gives higher quality tracking for multiple targets, Single Target Track
gives highest quality data, Air Combat Mode for short range search and
automatic target capture.
Targeting pod: Litening, with FLIR and laser designation.
Data for JAS 39A Gripen is basically the same, but with a max take off weight of 12500 kg payload is correspondingly lower at 3600 kg (about same as Viggen it is replacing).
Data for the two seaters JAS 39B and D is basically the same as above. JAS 39B corresponds to JAS 39A and JAS 39D to JAS 39C. The main differences are: Length 14.8m, no internal gun and a different empty weight.
(Back to) more on JAS 39 Gripen.
Document
created 1993, but since revised and expanded,
last updated 2001 Mar 18
by Urban Fredriksson