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Limits of Classical Space Travel (Art. 6)
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The following article is available, free of charge, for download. Your consideration of the
great extent of this research is greatly appreciated.
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In 1962 Dr. Krafft Ehricke, who was one of the most authoritative
astrodynamicists of that time, carried out one of the most detailed
analytical investigations of the design of free-fall multiplanetary
trajectories ever conducted. He concluded that the effects of
planetary gravitational perturbations had to be canceled out by
using an onboard rocket engine. This procedure of canceling out
the effects of planetary gravitational perturbations was
essentially
identical to the method described by Walter Hohmann in 1925.
See page 1062 in Ehricke's investigation entitled "Interplanetary
Flights Involving Several Planets."
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To correspond with Dr. Minovitch via mail, please address your interest to:
Dr. Michael A. Minovitch
2832 St. George St.
Suite 6
Los Angeles, CA
90027
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