Ref: https://www.faa.gov/sites/faa.gov/files/regulations_policies/handbooks_manuals/aviation/airplane_handbook/03_afh_ch2.pdf Hand Propping General aviation aircraft can be hand-propped (manually started) due to a few key reasons: some aircraft are older and lack electric starters, others may have battery issues, and it’s also a method to check for potential hydraulic lock in the engine, according to aviation publications. While electric starters are common, hand-propping remains a … Continue reading Hand Propping