I picked up a copy of "The Yachting Year" Volume One, 1946, a not very rare "yachtsman's annual" edited by a certain Eric Hiscock, who went on to become quite well known in cruising circles...
And here are the new dinghies for 1946...
I think this may be one of the first references to the Firefly in print. The blurb reads as if Uffa Fox wrote it. The suggestion that the RYA approached Faireys is interesting. This was written before the discovery that the untapered alloy mast was unsuitable, of course:

Looks like Uffa was playing with a Una rig idea - note the alternative mast position?

Here we have a proto-Swordfish:
[img]http://i535.photobucket.com/albums ... .jpg[/img]
Not yet associated with Faireys...

but what became of this handsome design?

Mr Heath Robinson must have been involved in the design of the "undercarriage" that stowed in the boat and became a road trailer when wanted...


and here we have the future and the road not taken both on the same page - one of the "Yachting World 14ft Restricted Class", of which the prototype, "Merlin" was designed by Mr Holt, and two sharpies - the upper one was a design sponsored by "Yachting Monthly" for amateur construction, the YM 16ft sharpie, designed by Jack jones.:

The general tenor of the book as regards "small craft" is that there will be a lot of amateur built sharpies; this did not come to pass and whilst I can see that sharpies are awkward for sea sailing, having to be kept afloat, one wondered why they did not "take off" inland. It may be that the motor car, able to pull a light dinghy, has something to do with it.
The arrival of the GP14 may have finished off sharpies as such.