Airdrop is a method of air delivery in which items including weapons, equipment, humanitarian aid or leaflets are delivered by military or civilian aircraft without landing. Developed during World War II to resupply otherwise inaccessible troops, they are themselves usually airborne troops, airdrop

The airdrop method refers to the method by which the load leaves the aircraft. There are currently three main types of airdrops used in military operations.• Automatic extraction airdrops use extraction parachutes to pull the load out of the tail of the aircraft: the parachu

The tank used for a particular fluid is selected based on the flash point of that substance. Generally in refineries, especially for liquid fuels, there are fixed roof tanks and floating roof tanks.1. Fixed roof tanks are suitable for liquids with very high flash points (such as fuel oil, water, asp