It's estimated that Sgt. Lee of the American Continental Army pedalled his TURTLE submarine at about 2 mph in 1776.
The fastest solar powered car is called the Sunswift IVy with a raging record breaking/holding speed of over 250 mph.
100m in 11.57 seconds
The world record for the fastest cyclist was set by Dutch cyclist, Theo Bos, who reached a speed of 133.78 km/h (83.13 mph) in 2018 at the World Human Powered Speed Challenge in Nevada, USA.
XF-84H Thunderscreech is the fastest propeller powered airplane.It can travel at a speed of 1004kmph.For more information see the related links below.
tr1700 25 Knots
The fastest record speed attained by a human on foot is 27.44 miles per hour. This speed was attained by Usain Bolt in the 100 yard dash.
The fastest speed of a human running was set by Maurice Greene, who achieved a sprint speed of 26.7 mph.
The fastest rocket-powered aircraft is the North American X-15, which achieved a top speed of Mach 6.7 (about 4,520 mph). If you are looking for the fastest aircraft that is not rocket-powered, the X-15 still holds the record as it used rocket engines to reach its high speeds.
Fastest speed on what kind of bicycle, and under which conditions? With an UCI-approved bike, anything human-powered, downhill on a MTB, descending on a road bike, on the flat solo, on the flat behind a pace vehicle?
A bike won't go anywhere, at any speed unless it has a rider, and for a human powered vehicle the rider is crucial - so the question is quite pointless. Besides, you're not telling for what kind of riding.
The fastest speed reached by a human being so far is by Usain Bolt recorded at 28.2 mph.
According to a remote control blog,the fastest rc speed boat is a C-1 boat, powered by gas, which can reach up to 200 mph. http://www.xenonproject.com/blog/worlds-fastest-rc-boat/