Complex sentence: Roberts flew Piper Cubs, North American B-25 Mitchell bombers, Douglas C-54 Skymaster transports and North American F-86 Sabre fighter jets, and served in numerous flying, technical and command assignments.
Split into simpler sentences: Roberts flew Piper Cubs, North American B-25 Mitchell bombers, Douglas C-54 Skymaster transports and North American F-86 Sabre fighter jets. Roberts served in numerous flying, technical and command assignments.