Hello everyone. I am buying an robbe u-47 submarine from a person , the sub is completley ready to run exept the rod that holds the stern on broke ,the person tightend it to much. I see that there is a device called a boyonet ring, can this be fitted to a sub that is already bilt? Thanks Charlie.

Yes.Alexander Engel has the parts.
Regards,
John

Charlie,

Yes, I put one on my U-47 after I had built it. Takes a bit of engineering but not too difficult. I did not buy mine from Engel but rather a German company. (most likely the same supplier that sells them to Engel) Works like a charm, too. Just make sure you use the included silicone lube. Also, I leave my sub halves disconnected when it is on the shelf. That way, the inside gets air and the seal won't stick. It does have a tendancy to stick if it has been sitting together for a length of time. ( I know, trust me)

You can find a couple of pictures in my gallery if you want to see what it looks like. Just look for the U-98 Type VII.

Pete

You can but the banjos from :

http://www.modelluboot.de/

or

http://www.precisionpattern.biz/subs/index.htm

Regards,
John