Complex sentence: After designing car engines and, more notably, the Napier Lion aero engine, Rowledge took up a similar position at Rolls-Royce Limited in 1921, where he became known as'Rg' in company shorthand.
Split into simpler sentences: After designing car engines and, more notably, the Napier Lion aero engine. In 1921 Rowledge took up a similar position at Rolls-Royce Limited, where he became know as'Rg' in company shorthand.