Compare reaction turbines
All reaction turbines
|
PW4x56
✕
|
JT9D-7R4G2
✕
|
| EASA ID |
1PW055 |
1PW029 |
| Aircraft Engine Manufacturer |
Pratt & Whitney |
Pratt & Whitney |
| Aircraft Engine Type |
Turbofan |
Turbofan |
| Fuel |
Jet A |
Jet A |
| Geared Fan |
No |
No |
| Combustion Chamber |
Phase 3 |
|
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
4.8 |
4.8 |
| Overall Pressure Ratio |
28.37 |
26.3 |
| Maximum Takeoff Thrust (kN) |
249.1 |
243.5 |
| Hydrocarbon Take Off (g/kg fuel) |
0.08 |
0.15 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.09 |
0.14 |
| Hydrocarbon Approach (g/kg fuel) |
0.16 |
0.18 |
| Hydrocarbon Idle (g/kg fuel) |
4.75 |
1.55 |
| Hydrocarbon Unitary Average (g/kN) |
6.4 |
2.6 |
| Hydrocarbon Unitary Characteristic (g/kN) |
9.9 |
2.9 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
50.3 |
14.9 |
| Hydrocarbon LTO (g) |
1597 |
620 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.48 |
0.74 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.56 |
0.63 |
| Carbon Monoxide Approach (g/kg fuel) |
1.89 |
1.4 |
| Carbon Monoxide Idle (g/kg fuel) |
29.96 |
11.82 |
| Carbon Monoxide Unitary Average (g/kN) |
41 |
19.5 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
50.3 |
20.7 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
42.6 |
17.6 |
| NOx Take Off (g/kg fuel) |
30.44 |
41.3 |
| NOx Climb Out (g/kg fuel) |
24.24 |
29.5 |
| NOx Approach (g/kg fuel) |
11.97 |
8.8 |
| NOx Idle (g/kg fuel) |
3.93 |
3.8 |
| NOx Unitary Average (g/kN) |
49.2 |
60.5 |
| NOx Unitary Characteristic (g/kN) |
57 |
63.2 |
| NOx Unitaryto Standard (% of limit) |
59 |
68.3 |
| NOx Unitaryto CAEP2 (% of limit) |
73.7 |
85.4 |
| NOx Unitaryto CAEP4 (% of limit) |
88.6 |
103.5 |
| NOx Unitaryto CAEP6 (% of limit) |
100.6 |
117.7 |
| NOx Unitaryto CAEP8 (% of limit) |
119.2 |
140.7 |
| NOx LTO (g) |
12246 |
14253 |
| Smoke Take Off (SN) |
8.5 |
6.8 |
| Smoke Climb Out (SN) |
5.8 |
|
| Smoke Approach (SN) |
0.6 |
|
| Smoke Idle (SN) |
0 |
|
| Smoke Max (SN) |
8.5 |
6.8 |
| Smoke Characteristic (SN) |
10.9 |
7.5 |
| Smoke Characteristicto Regulatory (% of limit) |
59.4 |
40.3 |
| Fuel Flow Take Off (kg/s) |
2.351 |
2.429 |
| Fuel Flow Climbout (kg/s) |
1.912 |
1.88 |
| Fuel Flow Approach (kg/s) |
0.643 |
0.659 |
| Fuel Flow Idle (kg/s) |
0.208 |
0.2239 |
| Fuel LTO (kg) |
830 |
858 |
| Fuel Venting Compliant |
No |
No |
| Carbon Monoxide LTO (g) |
10202 |
4582 |
| Emissions Data Status |
C |
C |
| Engine Status |
Out of production |
Out of production |
| NOx Compliance Demonstration |
2.3.2 c) |
|