This is was I found on Volvo Penta site.
Jim Wynne, inventor of Volvo Penta’s aquamatic drive, is the most influential person in the motor boat industry, according to a ranking in the highly regarded British boat magazine Motor Boat & Yachting.
Thanks to a series of revolutionary technical solutions, Volvo Penta has a world-renowned reputation as one of the most innovative companies in the marine industry.
These innovations include the aquamatic drive, which was launched in 1959, and the counter-rotating duo-prop drive from the 1980s.
Volvo Penta’s position is confirmed by the British Motor Boat & Yachting magazine, which in its May issue has ranked the most influential people in motor boating in the 20th Century.
The list is topped by Jim Wynne, the man behind Volvo Penta’s aquamatic drive.
According to the magazine, the “Aquamatic drive is the 20th Century’s single most important development in small-craft technology, which made the mass production of cheap, fast, inboard sportsboats possible."