Deans do a range of raf launches under their fast launches section. They do a 1/24th fire boat within this for about A£120. I built one of these a couple of years ago. Not the best quality kit in the world but with some skill and rework makes a good model. I put a 18owatt 1100 kv brushless od 7. 2 volts and a 35mm x prop in mine and it flies. Let me know if you need any info on these boats.

HI Tom,
Hope you are well. Finally got my boat on the water at the weekend (Fleetwood Scale & Power weekend) and I was quite pleased with things, however it does keep blowing fuses so I will re-wire and see if that helps other wise I am flumoxed.
I am considering converting it to 2 props though to be more true to the original boats and wondered if you had any tips and internal/external pictures of your 46 for me to look at.
Many thanks again Tom.
Dean