LE-5 Specifications LE-5 Model Specifications

| LE_5_Model | LE_5 | LE_5A | LE_5B | LE_5B_2 |
|---|---|---|---|---|
| Operational Cycle | Gas Generator | Expander Bleed (Nozzle/Chamber) | Expander Bleed (Chamber) | Expander Bleed (Chamber) |
| Rated Thrust | 102.9 (23,100) | 121.5 (27,300) | 137.2 (30,800) | 144.9 (32,500) |
| Mixture Ratio | 5.5 | 5 | 5 | 5 |
| Expansion Ratio | 140 | 130 | 110 | 110 |
| Specific Impulse (Isp) | 450 | 452 | 447 | 447 |
| Chamber Pressure | 3.65 (529) | 3.98 (577) | 3.58 (519) | 3.78 (548) |
| LH2 Rotational Speed | 50000 | 51000 | 52000 | 53504 |
| LOX Rotational Speed | 16000 | 17000 | 18000 | 18560 |
| Length | 2.68 (8.84) | 2.69 (8.88) | 2.79 (9.21) | 2.79 (9.21) |
| Weight | 255 (562) | 248 (547) | 285 (628) | 290 (639) |
| Throttleable down to | no | no | 60% | 60% |