specificImpulseSeaLevel
P21231
predicate
Indicates the specific impulse (thrust efficiency per unit propellant flow) of a propulsion system when operating at sea-level atmospheric conditions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| specificImpulseSeaLevel canonical | 13 |
| specificImpulseAtSeaLevel | 4 |
Description generation (PDg)
The one-sentence description above was generated by prompting gpt-5.1 with the predicate name and this instruction.
Instruction
Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning. # Instructions Focus on describing the relationship, not the entities themselves. # Response Format Begin the description with \' Indicates...\'
Input
Predicate: specificImpulseSeaLevel
Generated description
Indicates the specific impulse (thrust efficiency per unit propellant flow) of a propulsion system when operating at sea-level atmospheric conditions.
Sample triples (17)
| Subject | Object |
|---|---|
| Merlin 1A | about 256 s ⓘ |
| Space Shuttle Main Engines | about 366 seconds via predicate surface "specificImpulseAtSeaLevel" ⓘ |
| Reaction Motors XLR99 | about 250 s ⓘ |
| RS-25D | about 366 seconds ⓘ |
| Merlin 1D sea-level | approximately 282 s via predicate surface "specificImpulseAtSeaLevel" ⓘ |
| Rocketdyne H-1 | about 263 s ⓘ |
| Vulcain 2 | approximately 320 s ⓘ |
|
RS-68
linked to:
RS-68 engine
|
about 365 s ⓘ |
| RD-180 | about 311 s via predicate surface "specificImpulseAtSeaLevel" ⓘ |
| Rutherford engine | about 311 s ⓘ |
| Universal Rocket Module URM-1 | about 311 s ⓘ |
| RD-191 | about 311 s ⓘ |
| F-1 engine | about 263 seconds ⓘ |
| RD-181 | approximately 311 seconds ⓘ |
| RD-0109 | about 247 s via predicate surface "specificImpulseAtSeaLevel" ⓘ |
| Rocketdyne A-7 | approximately 216 s ⓘ |
|
RS-27
linked to:
RS-27 rocket engine
|
about 255 s ⓘ |