Delta-v
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SPACEFLIGHT
Orbital Mechanics
Delta-v
Delta-v acts as the invisible fuel gauge dictating every spacecraft maneuver's feasibility
7 Feb 2026
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Why is delta-v a critical factor in planning spacecraft missions?
Because it measures the exact speed change of the spacecraft during flight.
Because it quantifies the total impulse needed for maneuvers, affecting fuel and design requirements.
Because it only applies to the physical velocity changes, not fuel consumption.
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