compare computed ff5’s - mycity military · 2011. 7. 12. · f-18 hornet flight model in ff5...

Post on 30-Aug-2021

2 Views

Category:

Documents

0 Downloads

Preview:

Click to see full reader

TRANSCRIPT

F-18 Hornet Flight Model in FF5

Compare computed FF5’s

Hornet performance

with Real Life Data

RL data extracted from

A1-F18AC-NFM-210

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

50,000

55,000

60,000

0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80

Alt

(ft

)

Mach

Level Flight EnveloppeMIL & A/B Power

The maximum Mach values over

35,000ft read from Flight

Envelope diagram (p. 11-274)

seems too high compared to

those given p11-290, 294 & 297

(marked with red cross)

F-18C (F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

Supposed to fit the (1) curve

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

0

20

40

60

80

100

120

140

160

180

0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80

Tim

e (

s)

Mach

Acceleration (Max Thrust AB)

0

10,000

30,000

RL 10,000

RL 30,000

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

0

30

60

90

120

150

180

0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80

Tim

e (

s)

Mach

Acceleration (Max Thrust AB)

35,000

40,000

45,000

RL 35,000

RL 40,000

RL 45,000

F/A-18C Hornet Flight Model in FF5

Computed turn

performances

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

22.00

24.00

26.00

28.00

30.00

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

CAS (Kts)

Tu

rn R

ate

(d

eg

ree p

er

seco

nd

)

AoAMax

-600

-400

-200

0

200

400

600

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

22.00

24.00

26.00

28.00

30.00

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

CAS (Kts)

Tu

rn R

ate

(d

eg

ree

pe

r s

ec

on

d)

AoAMax

-600

-400

-200

0

200

400

600

+600

+400

+200

-600

-400

Ve

locity

Ne

ve

r Exce

ed

Max. Insant. Turn Rate = 24.7 d/s

-200Max. Sustained. Turn Rate = 17.15 d/s

Sea Level 5,000ft

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

+600

+400

+200

-600

-400

Ve

locity

Ne

ve

r Exce

ed

Max. Insant. Turn Rate = 22.77 d/s

-200Max. Sustained. Turn Rate = 15.30 d/s

2G

4G

6G

8G

2G

4G

6G

8G

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

22.00

24.00

26.00

28.00

30.00

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

CAS (Kts)

Tu

rn R

ate

(d

eg

ree p

er

seco

nd

)

AoAMax

-600

-400

-200

0

200

400

600

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

22.00

24.00

26.00

28.00

30.00

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

CAS (Kts)

Tu

rn R

ate

(d

eg

ree p

er

seco

nd

)

AoAMax

-600

-400

-200

0

200

400

600

+600

+400

+200

-600

-400

Ve

locity

Ne

ve

r Exce

ed

Max. Insant. Turn Rate = 21.0 d/s

-200 Max. Sustained. Turn Rate = 13.2 d/s

10,000ft 15,000ft

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

+400

+200

-600

-400

Ve

locity

Ne

ve

r Exce

ed

Max. Insant. Turn Rate = 19.2 d/s

-200Max. Sustained. Turn Rate = 10.4 d/s

2G

4G

6G

8G

2G

4G

6G

8G

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

22.00

24.00

26.00

28.00

30.00

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

Tu

rn R

ate

(d

eg

ree p

er

seco

nd

)

CAS (Kts)

AoAMax

-600

-400

-200

0

200

400

600

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

22.00

24.00

26.00

28.00

30.00

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

Tu

rn R

ate

(d

eg

ree p

er

seco

nd

)

CAS (Kts)

AoAMax

-600

-400

-200

0

200

400

600

+200

-600

-400

Ve

locity

Ne

ve

r Exce

ed

Max. Insant. Turn Rate = 18.1 d/s

-200

Max. Sustained. Turn Rate = 8.9 d/s

20,000ft 25,000ft

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

+200

-600

-400

Ve

locity

Ne

ve

r Exce

ed

Max. Insant. Turn Rate = 17.2 d/s

-200 Max. Sustained. Turn Rate = 8.0 d/s

2G

4G

6G

8G

2G

4G

6G

8G

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

22.00

24.00

26.00

28.00

30.00

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

Tu

rn R

ate

(d

eg

ree p

er

seco

nd

)

CAS (Kts)

AoAMax

-600

-400

-200

0

200

400

600

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

22.00

24.00

26.00

28.00

30.00

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

Tu

rn R

ate

(d

eg

ree p

er

seco

nd

)

CAS (Kts)

AoAMax

-600

-400

-200

0

200

400

600

+200

-600

-400

Ve

locity

Ne

ve

r Exce

ed

Max. Insant. Turn Rate = 15.9 d/s

-200Max. Sustained. Turn Rate = 17.15 d/s

30,000ft 35,000ft

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

+200

-600

-400

Ve

locity

Ne

ve

r Exce

ed

Max. Insant. Turn Rate = 13.2 d/s

-200Max. Sustained. Turn Rate = 5.1 d/s

2G

4G

6G

8G

2G

4G

6G

8G

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

22.00

24.00

26.00

28.00

30.00

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

Tu

rn R

ate

(d

eg

ree p

er

seco

nd

)

CAS (Kts)

AoAMax

-600

-400

-200

0

200

400

600

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

16.00

18.00

20.00

22.00

24.00

26.00

28.00

30.00

0 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800

Tu

rn R

ate

(d

eg

ree p

er

seco

nd

)

CAS (Kts)

AoAMax

-600

-400

-200

0

200

400

600

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

-600-400

Ve

locity

Ne

ve

r Exce

ed

Max. Insant. Turn Rate = 10.9 d/s

-200

Max. Sustained. Turn Rate = 3.7 d/s

-600-400

Ve

locity

Ne

ve

r Exce

ed

Max. Insant. Turn Rate = 9.7 d/s

-200

Max. Sustained. Turn Rate = 2.6 d/s

2G

4G

6G

8G

2G

4G

6G

8G

40,000ft 45,000ft

F/A-18C Hornet Flight Model in FF5

Computed Climb

performances

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

Max A/B Thrust

0

100

200

300

400

500

600

700

800

900

0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80

Excess S

pecif

ic P

ow

er

(ft/

s)

Mach

Instantaneous Climb Rate

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

Max A/B Thrust

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80

Cli

mb

An

gle

(d

eg

)

Mach

Climb Angle

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

MIL Thrust

0

100

200

300

400

0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80

Excess S

pecif

ic P

ow

er

(ft/

s)

Mach

Instantaneous Climb Rate

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

45,000

F/A 18-C(F404-GE-402)

(2) AIM-9 + (2) AIM-7

60% Fuel Remaining

GW=33,696 lb

MIL Thrust

0.00

10.00

20.00

30.00

40.00

50.00

60.00

70.00

80.00

90.00

0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80

Cli

mb

An

gle

(d

eg

)

Mach

Climb Angle

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

top related