Space Propulsion - IAP/TU Wien

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Space Propulsion plane change maneuver ΔV = 2 V i α sin 2 without velocity change Plane changes are expensive on a propellant basis. A 10-deg plane change in low Earth orbit would.require a velocity change of about 1.4 km/s. For a 500 kg spacecraft, this plane change would require 292 kg of propellant, if one assumes an I sp of 3100 m/s The equation shows that it is important to change planes through the smallest possible angle and at the lowest possible velocity. The lowest possible velocity occurs at the longest radius, that is, at apoapsis.
Space Propulsion Combined maneuver: ΔV 1-2 = 1.831 km/s For separate maneuvers, plane change maneuver: ΔV 1 = 0.791 km/s; circularization maneuver: ΔV 2 = 1.469 km/s; total ΔV = 2.260 km/s.
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Page 37 and 38: Space Propulsion Example 1: Simple
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Page 73 and 74: Space Propulsion Example 6: One-Axi
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Space Propulsion - IAP/TU Wien

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