Had many a happy hour in both the rattling creaking tin torpedo and the K13- although I prefer the Blanik as there's a bit more room in it(at least in the front)
As to the funding for the glass ships, the rumour I heard was that it was dosh left over from the Falklands escapade that had to be spent. Certainly the timing fitted at the time.
10 days and then I'll be home. Just bidding for a photo scanner on ebay as I write, so look out for the pics