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Eurofighter vs F-15


The F-15E Strike Eagles pilot who enters combat with most aircraft energy, either in the form of height or speed, will have the small advantage in manoeuvrability, but if the combat continues this advantage will be soon lost, superiority passing to the aircraft with most latent energy.

In simple terms this means the F-15 with the most excess thrust, a measure of the aircraft’s ability to accelerate and climb. This potential is described as specific excess power (SEP), and its highest value occurs at high subsonic speeds, at the foot of the drag curve. As the airspeed increases, supersonic drag begins to appear and intake pressure recovery falls as a result of shock waves (wave drag), reducing the thrust available.

In a sustained turn, when a F-15E pilot is endeavouring to get into the best position for a gun attack, the maximum rate of turn and the minimum turn radius are achieved when the drag generated in the turn is equalised by the available thrust.

The maximum rate of turn depends either on the available lift or on the maximum g forces the airframe can stand. However, it is difficult to sustain a maximum-rate turn without losing height. Everything depends on the thrust-to-drag and lift-to-weight ratios, key factors which must be taken into account in the design of an agile air-superiority fighter’s wing.


Eurofighter Typhoon versus F-15E Strike Eagle

CATEGORY

Eurofighter Typhoon

F-15 Eagle

F-15E Strike Eagle

Unit cost in USD millions

80-125

30-50

100-105

Fuel economy in km/l

0,84

0,41

0,38

Fuel economy in NM/g

1,97

0,96

0,89

Fuel tank capacity in litres

4500

6100

5950

Fuel tank capacity in gallon

1188

1610

1571

Range on internal fuel in km

3800

2540

2250

Range on internal fuel in miles

2356

1574,8

1395

Range on internal fuel in NM

2052

1371,6

1215

Powerplant/Engines

2 × Eurojet EJ200

2 × Pratt & Whitney F100

2 × Pratt & Whitney F100-229

Dry thrust in kN

2 x 60

2 x 78

2 x 78

Dry thrust in lbf

2 x 13500

2 x 17500

2 x 17500

Afterburner in kN

2 x 89

2 x 110

2 x 129

Afterburner in lbf

2 x 20000

2 x 25000

2 x 29000

Max. Speed in Mach

2,00

2,50

2,50

Max. Speed in km/h

2450

3063

3063

Max. Speed in mph

1522

1903

1903

Minimal thrust/weight ratio

0,78

0,70

0,72

Normal thrust/weight ratio

1,18

1,07

0,93

Maximal thrust/weight ratio

1,67

1,62

1,84

Overall length in meters

15,96

19,45

19,45

Overall length in ft

52,35

63,80

63,80

Wingspan in meters

10,95

13,05

13,05

Wingspan in ft

35,92

42,80

42,80

Height in meters

5,28

5,65

5,65

Height in ft

17,32

18,53

18,53

Wing area in sq meters

51,20

57,00

57,00

Wing area in sq ft

550,91

613,32

613,32

Empty weight in kg

11150

12700

14300

Empty weight in lb

24530

27940

31460

Maximal take-off weight in kg

23500

30800

36700

Maximal take-off weight in lb

51700

67760

80740

Minimal wing-loading in kg/m2

220

236

255

Normal wing-loading in kg/m2

310

368

504

Maximal wing-loading in kg/m2

471

546

651

Rate of climb in m/sec

315

254

254

Rate of climb in ft/min

62024

50013

50013

First flight

1994

1972

1986

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