30 hrs
David Harmon invented the speedboat in 1910. :-)
with a series of motors. a speedboat is the slowest boat in the world. go tell your parents that your speedboat experts now. i love you
1910
keynote
Working as a beach attendant for pedaloes and a speedboat when I was 13 years old (and that was a long time ago).
About 1 minute 8 seconds at a constant 10 mph.
Spirit_of_Australia
no
yes
nothing
yes yes