Description
A double vessel in which the boats themselves are the propeller.
Date(s)
About 1885-1889
Taxonomy Terms
Collection
Lawrence Hargrave: 'Evolution of the Flying Machine I' (1885-1889)
Description
"As far back as 1884 I put thought and labour on the evolution of the flying machine", noted Lawrence Hargrave in a letter of 9 March 1906 addressed to President and Members of The Aeronautical Society of Great Britain. From 1884 onwards Hargrave read a series of papers on his aeronautical research…