Compare reaction turbines
All reaction turbines
|
JT9D-7R4H1
✕
|
PW4256
✕
|
| EASA ID |
1PW030 |
1PW051 |
| Aircraft Engine Manufacturer |
Pratt & Whitney |
Pratt & Whitney |
| Aircraft Engine Type |
Turbofan |
Turbofan |
| Fuel |
Jet A |
Jet A |
| Geared Fan |
No |
No |
| Afterburner |
No |
No |
| Streams |
2 |
2 |
| Bypass Ratio |
4.8 |
4.7 |
| Overall Pressure Ratio |
26.7 |
29.3 |
| Maximum Takeoff Thrust (kN) |
249.1 |
252.4 |
| Hydrocarbon Take Off (g/kg fuel) |
0.15 |
0.11 |
| Hydrocarbon Climb Out (g/kg fuel) |
0.14 |
0.17 |
| Hydrocarbon Approach (g/kg fuel) |
0.18 |
0.25 |
| Hydrocarbon Idle (g/kg fuel) |
1.48 |
0.66 |
| Hydrocarbon Unitary Average (g/kN) |
2.7 |
1.2 |
| Hydrocarbon Unitary Characteristic (g/kN) |
3 |
1.8 |
| Hydrocarbon Unitary Characteristicto Regulatory (% of limit) |
15.5 |
9.4 |
| Hydrocarbon LTO (g) |
651 |
288 |
| Carbon Monoxide Take Off (g/kg fuel) |
0.74 |
0.08 |
| Carbon Monoxide Climb Out (g/kg fuel) |
0.63 |
0.14 |
| Carbon Monoxide Approach (g/kg fuel) |
1.39 |
0.9 |
| Carbon Monoxide Idle (g/kg fuel) |
11.63 |
11.6 |
| Carbon Monoxide Unitary Average (g/kN) |
20.4 |
14.2 |
| Carbon Monoxide Unitary Characteristic (g/kN) |
21.7 |
17.4 |
| Carbon Monoxide Unitary Characteristicto Regulatory (% of limit) |
18.4 |
14.8 |
| NOx Take Off (g/kg fuel) |
45.2 |
32.5 |
| NOx Climb Out (g/kg fuel) |
30 |
24.6 |
| NOx Approach (g/kg fuel) |
8.9 |
11.6 |
| NOx Idle (g/kg fuel) |
3.8 |
5 |
| NOx Unitary Average (g/kN) |
65.2 |
51.7 |
| NOx Unitary Characteristic (g/kN) |
68.2 |
59.9 |
| NOx Unitaryto Standard (% of limit) |
73 |
60.8 |
| NOx Unitaryto CAEP2 (% of limit) |
91.2 |
76 |
| NOx Unitaryto CAEP4 (% of limit) |
110.4 |
91 |
| NOx Unitaryto CAEP6 (% of limit) |
125.5 |
103.4 |
| NOx Unitaryto CAEP8 (% of limit) |
150 |
121.9 |
| NOx LTO (g) |
15683 |
13043 |
| Smoke Take Off (SN) |
7.6 |
14.3 |
| Smoke Max (SN) |
7.6 |
14.3 |
| Smoke Characteristic (SN) |
8.4 |
18.4 |
| Smoke Characteristicto Regulatory (% of limit) |
45.4 |
100.2 |
| Fuel Flow Take Off (kg/s) |
2.512 |
2.449 |
| Fuel Flow Climbout (kg/s) |
1.999 |
1.981 |
| Fuel Flow Approach (kg/s) |
0.7227 |
0.647 |
| Fuel Flow Idle (kg/s) |
0.2454 |
0.188 |
| Fuel LTO (kg) |
926 |
813 |
| Fuel Venting Compliant |
No |
No |
| Carbon Monoxide LTO (g) |
4938 |
3587 |
| Emissions Data Status |
C |
C |
| Engine Status |
Out of production |
Out of production |