lee boards ;LNG ; kites Lets start with lee boards. They work very well and have done for a long time. However given the slab sided midship...
Hove to under rotor According to Flettner, the rotors can be spun at a similar surface rate to the wind velocity and they "dissapere to the wind"...
rotor wind CLARKEY I often thought it would be interesting to watch a wind sock as the wind went from apparent on one tack to true wind as the...
DarthCluin, Quite right , I did not mention BAchau in my reply. I should have. However the quotation you posted from Wikipedia is directly in...
UniKat video Here is the Flensberg unikat in action https://www.youtube.com/watch?v=VuobfwRo-IE
uniKat I believe the report on UniKat is In the library at the University of Flensberg. I do not think they published a public version....
CLARKEY, you are very right to question the validity of the DarthCluin, statement. In fact the ship was very efficient She achieved her "under...
fortunately so So the rationale for cheap fuel prices are either to have fracking effluent in the water or SOX in the air around our sacred...
Flettner Rotor IS A SAIL the rotor absolutely is a sail. No wind , nothing happens no matter how fast you spin the rotor. Only when wind acts...
Commercial Kites I think there was a kite used by Cargill for some time but it either was a limited trial or was not successful- either way I...
Kites are glorified spinnakers on a rope. downwind sails at best. Flettner rotors are sails ( they only produce thrust when wind acts upon them,...
Rotor company in the USA / Bremuda Just came across these guys, it looks like a collapsible flettner that goes below the deck. Dosent have the...
