In the beginning, there was Formula.....
When Donald Joel Aronow, landed in Miami in 1961 after retiring from his construction business in New Jersey, he became fascinated with the local racing crowd, then dominated by Dick Bertram. Don wanted a piece of this action, so he created a company called Formula Marine in 1963 for the sole purpose of making race boats. Formula was really a loose association of people interested in race boats and was conceived more as a tax shelter than a production company. One of the people involved was a fellow named Jim Wynne. Wynne had already been racing for about three years. His first boats were Ray Hunt designs, but by '62 he was racing a boat he designed with Walt Walters called the Wyn-Mil . Wynne had a degree in Mechanical Engineering was a lead engineer at Lake X and was a patent holder for an improvement to sterndrive which he had licensed to Volvo - because Merc thought his system would never work. Jim didn't actually "invent" this improvement but we'll leave that for later.
There are two versions of the naming of Formula Marine. The first is that when Wynne and Walters were discussing the plans with Aronow, he would ask them a technical question and one of the two designers would answer, “You know, there’s a formula for that.” According to Aronow’s son, however, the name was chosen because the combination of designers Wynne and Walters with fiberglass builders Buddy Smith and Jake Trotter was the “formula” for success. I like both choices.
Jim and his partner Walt Walters designed one boat for the "formula" company. This being the famous 233 which used his sterndrive system, and was, as far as I can tell, their very first production boat design. Formula had two models at the time, the other being a 27 footer designed by Peter Guerke which was an inboard. Jim continued refining and racing the little 17 foot, single outdrive, deep V which was called the Wyn-Mil II. This was a wooden race boat, and it’s my opinion that it was never intended for fiberglass mass production. Several racing boats were constructed in England to the Wyn Mill II plans and they did very well. A plan to produce these boats by Souters in England was hatched though, it never came to fruition.
In any case, Formula Marine was becoming more of a true boat manufacturer than tax shelter/racing company and was sold to the Thunderbird Marine Company, run by Dick Genth in mid 1964. Planned expansion of the Formula model offering had included a smaller production boat. The Wyn-Mil II was used as the basis for a mold to expand the line and create the 17' Formula Jr without undue costs and in short order. The ready for production Formula Jr. was reluctantly included in the sale by Aronow to Geneth or, it would have been a deal-breaker. By late 1964, Aronow's new company, "Donzi'" had Wynne/Walters design a new little 16 to make up for the loss of the 17 sold to Geneth. The new Donzi was heavily influenced by the design of the Wyn-Mil II and Formula Jr. and changed just enough for Aronow not to be sued. The Donzi Ski-Sporter was born and racing before the end of 1964. Meanwhile, Thunderbird was busy catching up on sold backorders of the Formula 233, and they had no time to put the 17' Formula Jr. into production and on the market. This turned out to be a huge mistake as by 65, Donzi was pounding out Ski Sporters like no tomorrow and they were the hottest design in the industry. I once thought there were 1964 Jr.s, but now I'm not sure of this. There may have been one or two prototype hulls made prior to the sale to Genth but, clearly, they were not in production.
Late 1965 appears to be the actual first year of production (many as '66 models) and ironically, they came with Merc Drives and engines. As time progressed, many were sold unrigged. So, the design of the Jr in the form of the Wyn-Mil II and as a pre production model predates the Donzi 16 however, the Formula Jr. followed the Donzi 16 into the market to play catch-up... and never did. Like the 233, the Jr. still has features that show Ray Hunt's influence on Wynne/Walters early work. If you compare the strake to chine patterns of the Jr and 233, you'll see they are more Bertram than Donzi. Though the Donzi 16 was influenced by the Jr, the two boats are completely different. The Jr is also much lighter in construction than the 16. But, what I really love about the Jr. is that it is Wynne/Walters first small run-about design and a design Wynn raced in.