MAPLEWOOD, Minn., May 26 Harold Froehlich, the innovative Minnesota engineer who helped design the deep-diving mini-sub used to explore the Titanic, has died at the age of 84.
Froehlich died of heart failure in his home state of Minnesota on May 19, The New York Times reported.
Froehlich was an engineer who helped design the Alvin, a deep-diving exploratory submarine developed in the 1960s to recover hydrogen bombs for the military and later used to explore shipwrecks, including the Titanic.
Trained as an aeronautical engineer, Froehlich had led a team at General Mills in designing a submarine hull that could withstand the pressures at 6,000 feet below sea level.
The Times said the government had turned to General Mills due to Froehlich's expertise in designing strong packaging and unmanned balloons used to take air samples at high altitudes in search of evidence of Soviet nuclear testing.
Copyright 2007 by UPI
