The 1257 cubic meters section of Santos-Dumont No. 7 - the so-called RACER. The 40 m x 7m gasbag was sabotaged by knife cuts and
did not compete at the St. Louis Meet in 1907. Powered by one Clement (Bayard) 60 h.p. motor with 4-57m propellors at both ends of
the gondola, the airship was calculated to be capable of attaining a speed of 80.5 km/h. Although very streamlined, the air pressure on
the balloon would have been enormous (4 times that of No. 6). The airship would have been very unstable and it was fortunate for
Santos-Dumont that he never flew it at full speed. At the time a filling of gas would have cost 3ooo FF; and so, as he had no further use
for it, No. 7 was scrapped.
Collection of Jean-Pierre Lauwers