have essentially standard galley design. However, first-class galleys would have more stowage space per customer due to the requirement for stowage of more articles for customer convenience, usually a choice of food items, and also additional requirements for crockery and glassware. For example, the eighteen passengers on a BA 747 could be supplied with a total of 237 glasses.
As it is the airlines who determine which standard of insert they will use for their their galleys,a particular aircraft type, such as a Boeing 747-400, could have different galley systems according to the client needs. This has posed some problems for airlines who buy second-hand aircraft. For example, one small national airline operates three Lockheed Tristars purchased from three different airlines. Unfortunately, all three used different standards for their trolleys. As