Pelle Helmer Petterson is a Swedish sailor and yacht designer. He is the son of Helmer Petterson, and studied design at the leading Pratt Institute in New York from 1955 through 1957. He is probably best known for designing the Maxi Class sailing boats, which are still among the most common sailing boats in Swedish waters. He also designed Volvo's successful sports car, the P1800, while he was a student of Pietro Frua. Petterson has three children. There is a line of sailing clothing and sports wear bearing the name Petterson, under the Brand Name Pelle P. which are designed by his daughter, Cecilia. His other daughter, Ulrika "Icka", lives in the U.S. and is married to Paul Cayard, an American yachtsman and professional sailor. 

July 31st, 1932 in Stockholm (Age 91)