My mystery boat

That is very definitely a British Moth. We used to sail them on the river Avon near Bristol.

They also have them on the pond near Lymington.

There was one at the Dinghy show with a radical centre board. So the class association is still going!

They are very good at short tacking and sailing in light wind. Quicker than a Solo in the light stuff, but not in a blow.

Good Luck with it!

Ummm,

Must admit I did not read the whole of the thread, so did not pick up on the sail and rig not coming with the boat.

The rig is British Moth.

The hull is the general shape of a british moth, the deck layouts varied quite a bit, I remember one with an open transom and double floor, the older ones had buoyancy bags under the side decks. The rounded bow, and max beam at the shrouds is very British Moth, not aware of any other UK boat quite like that. From the photos I would not be surprised if the length was actually 11ft, the OP said it was 'said to be' something in metric. I have a theory that people make more mistakes in metric...The beam sounds about right. There is a British Moth Boat Assn website, the boats look as I remember them, but the sailors look older! (apart from the kids at Salterns near  Lymington).

In the sailing photo, is that a partly raised daggerboard? A BM would have had a pivoting centreboard with a long handle, at least originally.

It could of course be an American import, a one off or an obscure class, but I would wager a pint of our sailing club's finest ale that its 11ft long and a B'Moth.

What's a Piccolo?

Cheers!

I used to have a Minisail (aka Sprint) BTW, it was 13ft long, much narrower and had a clamp-on sliding seat, which would come undone randomly. Was tempted on ebay a month or so back....