In commercial aviation, what is the system where in-flight food or beverages are able to be purchases after being issue the document or electronic record by the airline?
Buy on board In commercial aviation, buy on board (BoB) is a system where in-flight food or beverages are not included in the ticket price, but are either purchased on board, or ordered in advance as an optional extra during or after booking process.
Approach plate Approach plates (or, more formally, instrument approach procedure charts) are the printed charts of instrument approach procedures that pilots use to fly instrument approaches during instrument flight rules (IFR) operations. Each country maintains their own instrument approach procedures according to International Civil Aviation Organization (ICAO) standards.