The Universal Atomic 4 is a fourcylinder, 64.46 cubic-inch, 30 hp (22 kW) gasoline engine created from the Universal Motor Company between 1947 and 1984 to be used as auxiliary power on sailboats. Over 40,000 of the engines were created throughout that time, with approximately 20,000 still used now. This "workhorse" engine dominated the enlarging sailboat market starting in the '60s, and between the years of 1965 and 1975 these were installed on up-to 80% of new sailboats in the 25 40 foot (7.6 12 meter) range. Their longevity and dependability is confirmed by the undeniable fact that a large number of sailors still rely in the motor, even several decades following the Universal Motor Company discontinued manufacturing.
History and Lineage
The Atomic 4 is descended from an earlier Universal Motor Company design known as the Utility Four, that was used commonly in WWII from the U.S. Navy and allies to power the lifeboats for those boats, barges, and tankers of several navies and merchant marine fleets. The Utility Four was replaced by the 4 in 1947.
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