Originally posted by DeepThought
By posting here I ensure I've posted in 7 threads which is more lucky than other numbers of posts I could make.
It will be fantastic if and when they finally figure out room temperature + superconductors. THAT will rewrite the entire transportation book. Till then, we have to use industrial refrigeration to keep even the high temp ones somewhat below the temperature of liquid nitrogen which is pretty cheap compared to having to use liquid helium at 3 or 4 degrees Kelvin.
Did you know there is now a US navy ship powered by superconducting motors? They are a LOT smaller, a lot more quiet and consumes about 30% less energy for the same traditional ships at the same speed.
They still have to depend on a constant supply of liquid nitrogen though.
This puppy is rated at nearly 50,000 horsepower! 39 megawatts!