Philip Dalton

Lt. Philip Dalton (April 1, 1903 – July 25, 1941 ) was a United States military scientist, pilot and engineer. Dalton is best known for his invention of several slide-rule analog flight computers, the most famous being the E6B.

Dalton was born in Scotia, New York, to William and Ida Dalton.

He studied engineering at Cornell University's College of Engineering, where he joined the ROTC. Upon graduation, he received a commission as a lieutenant of field artillery in the United States Army Reserve. He continued his studies at Princeton University, where he received a master's degree in physics, and Harvard, after which he resigned his Army commission and joined the United States Naval Reserve. He received his wings at NAS Pensacola, and flew scout planes on the cruiser Northampton. By this time, Dalton's devices were in widespread use by all aviation branches of the US and British military services.