Try Cornwall model boats as the Graupner have revised their range. As suggested look for Krick and Ro Marine Good Luck

Hi Ron, Graupner bought the marine model part of Robbe a few years ago. They market a lot of Robbe boat stuff and electronics, but not all!, under the trade name 'roMarin'. Most roMarin products are also available through 'Krick' amongst others. Just look for 'roMarin'. Cheers, Doug 😎

http://www.krickshop.de/e-vendo.php?shop=krick_e&SessionId=&a=search&SearchStr=romarin

http://www.krickshop.de/e-vendo.php?shop=krick_e&a=catalog

https://www.graupner.com/

https://www.robbe.com/?___store=english&___from_store=default