Mathematics of Magsails
R. M. Freeland (2015), JBIS, 68, pp.306-323
Project Icarus is a theoretical design study for an interstellar probe based on the landmark Project Daedalus study completed in 1978. The Project Icarus Terms of Reference  (ToR) specify that the probe should achieve at least some deceleration at the target system. Magnetic sails were initially proposed by Andrews and Zubrin  in 1988 as a potential aid to interstellar deceleration, and several papers have since been written on the subject. This paper presents the complete calculations for a magsail and evaluates suitability of the various approximations used to simplify the math. The resulting calculations are then used to model full deceleration of a magsail-equipped vessel vs. one that only uses a fusion engine.