Glyn,
Thanks for the picture and information - do you seriously tell me there were other ships in the USN?
I'm sure that you will give us the info on your stability idea as it develops - my friends Blockade Runner is beautiful (and well made) but hideously tender - I am trying to get him to fit a simple drop keel just so that he can get some time on the water.
Please take this as a "Permanent invitation to inform and declaration of pre-approval of your Ideas" type of reply
I believe that weight is always one of the elements in narrow-ship stability - gel cells and nicd (Nimh) are fairly heavy, but lipos and li-ion cells are seriously light for their capacity. I realise that publication requires pretty standard running gear, but its amazing how many peeps who build a GG design are ex-aeromodellers with flight gear and lipos.
I'm running my Hellkitten on brushless and li-ion cells (ex laptop) with reversing on a third channel - experiences will follow in a brushless thread
andrew