JT8D Engine Data
Revised 08-Feb-2001
 
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CONDITION

ENGINE

THRUST (lbs)

EPR

N1 % RPM Normal

N2 % RPM Normal

Limit 'C EGT

Normal 'C EGT

Fuel Flow (PPH)

TSFC

8th

Stage

13th

Stage

Fan

Air

Note 1

 

 

 

Note 8

Note 7

 

 

 

 

F

PSIG

F

PSIG

F

PSIG

Take-off

( 5 min)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-7, -7A

14,000

1.98

93.6

93.5

570, 580

500

8,190

0.585

426

60.7

707

204.3

201

10.2

 

-9

14,500

2.038

94.4

93.1

580

511

8,628

0.595

471

68.3

696

214.0

200

10.5

 

-11

15,000

2.085

95.6

93.8

595

524

9,300

0.620

485

70.2

711

221.2

205

11.0

 

-15

15,500

2.13

97.4

94.6

620

543

9,765

0.630

498

72.1

727

228.6

211

11.4

 

-17

16,000

2.185

96.6

93.7

650

572

9,854

0.616

508

69.2

717

226.5

214

12.0

Maximum

Continuous

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-7, -7A

12,600

1.878

89.8

91.8

535, 540

477

7,182

0.570

398

55.5

667

184.7

189

8.8

 

-9

12,600

1.885

89.2

90.7

540

474

7,182

0.570

421

59.2

642

186.3

180

8.8

 

-11

12,600

1.885

89.2

90.7

550

474

7,371

0.585

421

59.2

642

186.3

180

8.8

 

-15

13,750

1.962

91.7

91.9

580

508

8,181

0.595

451

65.1

673

203.3

191

9.9

 

-17

14,170

2.007

91.8

91.4

610

521

8,296

0.586

471

62.4

670

203.2

194

10.2

Part Power

Standard

Trim Stop

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-7, -7A

11,960

1.79

86.9

90.3

-

449

6,520

0.545

387

53.0

650

176.6

184

8.2

 

-9

12,520

1.848

88.0

90.2

-

466

6,900

0.551

420

58.9

640

185.1

179

8.8

 

-11

13,220

1.908

89.9

91.1

-

480

7,480

0.565

437

62.5

660

195.5

186

9.4

 

-15

13,920

1.972

92.0

92.1

-

510

8,000

0.575

455

65.8

679

205.6

193

9.9

 

-17

14,610

2.042

92.9

91.9

-

529

8,631

0.591

479

64.1

680

208.9

199

10.7

Maximum

Cruise

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-7, -7A

11,400

1.742

85.4

89.5

510

440

6,327

0.555

378

51.0

637

169.2

179

7.7

 

-9

11,400

1.755

85.1

88.8

510

448

6,327

0.555

394

53.8

615

169.7

169

7.7

 

-11

11,400

1.755

85.1

88.8

520

448

6,498

0.570

394

53.8

615

169.7

169

7.7

 

-15

12,400

1.836

87.6

90.0

550

483

7,192

0.580

417

58.3

630

183.7

178

8.7

 

-17

12,850

1.888

88.4

90.0

580

495

7,342

0.572

447

56.9

640

185.6

182

9.0

Data

Plate

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note 6

-7, -7A

-

1.65

82.7

88.0

-

423

-

-

-

-

-

-

-

-

 

-9

-

1.65

81.9

87.3

-

426

-

-

-

-

-

-

-

-

 

-11

-

1.65