Question: Albert Lee Ueltschi is considered the father of modern flight training and was once personal pilot to Juan Trippe and an associate of which famous person?
Sentence (from "Juan Trippe"): He was instrumental in numerous revolutionary advances in airline history, including the development and production of the Boeing 314 Clipper, which opened trans-Pacific airline travel, the Boeing Stratocruiser which helped to pioneer cabin pressurization, the Boeing 707 which launched the Jet Age, and the Boeing 747 which introduced the era of jumbo jets (evolved from Air Force bombers, tanker and transport design, respectively).
Relevant evidence: No