Hitler, his Yacht and an Enigma ...

A strange  question maybe ...

Does anyone in the group have information relating to Hitler's Yacht(s)?

A website refers to one boat called 'Grille' or 'Grasshopper' and  
another 'Ostwind' .. others?

He had several over the years but I am mainly interested in whichever  
yachts / boats he used towards the end of the war.

Reason:  An inquiry asks for information relating to a single Enigma  
rotor that is purportedly from Hitler's yacht and captured at war's  
end.  It is labeled as being from Hitler's yacht but that label means  
nothing by itself.

The item is apparently a Kriegsmarine-type Enigma rotor but  I'll  
keep the serial number out of it for the time being.

Seems wholly likely that Hitler would have suitable comm's facilities  
aboard his yacht(s).

While I ask the person involved for more information, I felt I should  
also ask here.

All information will be duly passed along and greatly received.

Regards

John Alexander