If the water speed is greater by only about one-third, why does power nearly triple?
Its name alludes to Sir Malcolm Campbell's Bluebirds, the vehicles that set land and water speed records throughout the pre-World War II era.
Frictional resistance is proportional to the product of water density, area of contact with the water, square of water speed relative to the ship, and a friction coefficient.
"It's very hard to measure the water speed because it's very fast," said Dr. Takashi Yabe, a professor of mechanical engineering at the Tokyo institute and the lead author of the Applied Physics Letters article.
It tells the story of Donald Campbell's fatal attempt at the world water speed record in Bluebird in 1967, and the song itself was to inspire the recovery of the wreck of Bluebird from the depths of Coniston Water.
As well as creating sound, the mill is also collecting data from the river, including water temperature, salinity, oxygen, nitrate content, acidity, turbidity, wheel speed, battery voltage, water speed and water direction – these will all be streamed live here.
Once more making an attempt to break the water speed record, Campbell was exceeding 300 mile/h (480 km/h) on Coniston Water when his jet-propelled boat was wrecked and he was killed.
Immediately after setting a water speed record of 85.8 knots, he was fatally injured when his boat traveling at a speed of more than 86 knots broke apart, presumably after hitting a floating tree limb.
The maximum ascent rates of the C-Plane with a water speed of 0.3 m/s are 0.015 m/s when the pitch is fixed at 0° and 0.030 m/s when the pitch is fixed at 4°.
The 45-year-old died trying to break his own water speed record when the Bluebird K7 flipped and crashed.
