Hi
Big Ada HFM as Ralph said was a small company from the 80/90s, it was set up by Harvey Frederick Middleton so H.F.M.
He had many types of boats in his range and as has been said all were vac Formed, it could be said that Harvey started the Club 500, as he did two fast electric boat in the same box, so that the farther and son/daughter could race each other.
At one point I helped Harvey out by building and sailing his models at the shows in the south for him.
I have two ORSV and the second Type 7, I would like to add the Thames Barge to my small collection.
Fred