Difference between revisions of "Delta-V"
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| − | '''Delta-V''' is a [[spaceflight]] term for the [[Velocity|velocity]] change needed during an [[Orbital maneuver|orbital maneuver]]. The name has its origin in mathematics, where the greek capital letter [[Delta|delta]] gets used for indicating differences of a variable, in this case "V", which is commonly used for velocities. | + | '''Delta-V'''(<math>\Delta V</math>, DV) is a [[spaceflight]] term for the [[Velocity|velocity]] change needed during an [[Orbital maneuver|orbital maneuver]]. The name has its origin in mathematics, where the greek capital letter [[Delta|delta]] gets used for indicating differences of a variable, in this case "V", which is commonly used for velocities. |
Because of the high [[Propellant|propellant]] [[Mass ratio|mass ratios]] in [[Spacecraft|spacecraft]], two maneuvers of the same '''delta-V''' have different [[Burn time|burn times]] and [[Fuel consumption|fuel consumptions]]. | Because of the high [[Propellant|propellant]] [[Mass ratio|mass ratios]] in [[Spacecraft|spacecraft]], two maneuvers of the same '''delta-V''' have different [[Burn time|burn times]] and [[Fuel consumption|fuel consumptions]]. | ||
| − | Further information | + | ==Further information== |
| + | * [[w:Delta V|Delta V]] on Wikipedia. | ||
[[Category:Glossary]] | [[Category:Glossary]] | ||
[[Category:Spaceflight]] | [[Category:Spaceflight]] | ||
{{Stub}} | {{Stub}} | ||
Revision as of 09:11, 16 July 2007
Delta-V(, DV) is a spaceflight term for the velocity change needed during an orbital maneuver. The name has its origin in mathematics, where the greek capital letter delta gets used for indicating differences of a variable, in this case "V", which is commonly used for velocities.
Because of the high propellant mass ratios in spacecraft, two maneuvers of the same delta-V have different burn times and fuel consumptions.
Further information
- Delta V on Wikipedia.