| Definition | A small spaceship for personal use. |
| OED requirements | antedating 1934 |
| Earliest cite | 'Don A. Stuart' (John W. Campbell), 'Twilight' |
| Comment | Ralf Brown located a cite in an electronic text of Alan Dean Foster's 1973 "Bloodhype", and David Dyer-Bennet verified it in a paper copy. Fred Galvin submitted a 1950 cite from H. Beam Piper's "Last Enemy". Fred Galvin submitted a 1948 cite from Murray Leinster's "Planet of Sand". Fred Galvin submitted a cite from a 1957 reprint of Robert A. Heinlein's 1956 "Double Star"; Mike Christie verified it in the first publication. Fred Galvin submitted a 1941 cite from J. Harvey Haggard's "Derelicts of Uranus". Fred Galvin submitted a cite from a reprint of A.E. van Vogt's "Vault of the Beast"; Mike Christie verified it in the 1940 first appearance. Fred Galvin submitted a cite from a 1971 reprint of "Twilight" by John W. Campbell Jr, which Mike Christie verified this in its first publication (Astounding Stories, November 1934, as by Don A. Stuart) |
| Last modified | 9 December, 2009 |
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| 1934 ‘D. Stuart’ Twilight in Astounding Stories Nov. 52/1 | Three ships. One must have been fifty feet long and fifteen in diameter. It was a yacht, a space yacht, probably. |
| 1940 A. E. van Vogt Vault of Beast in Astounding Sci.-Fiction Aug. 60/1 | He has commanded his own space yacht; he knows more about the mathematical end of the work than our whole staff put together; and that is no reflection on our staff. He knows the hardships connected with space flying, and believes that it is exactly what he needs. |
| 1950 H. B. Piper Last Enemy in Astounding Sci. Fiction Aug. 56/2 | Brarnend of Zorda has a private space yacht; he'll get us to Venus. |