Bill---
According to Hunn's old otbd book the first Speedi-twin was made in1927 and just 8 hp, 1928 up to 16 hp and 20 hp in 1929. The later one's were 22 hp starting in 1930. Bernie Van Osdale had a book published last year and he has sme history of boat racing in it. It has a lot of nice pics and he said racing started in 1906 but it looks like it really got going in 1927/28. His book covers the years 1927 to 1959 and like I said he has a lot of real nice pics in it.
I'm surprised none of the other ANTIQUES answered your question before now.
Bruce
Bookmarks