Why does a plane explodes when it crashes?

What was the first self- propelled vehicle? What is the approach speed of an F16 fighter? Are all jeep wranglers four wheel drive? What type of batteries does a rc remote control helicopter use? What kind of fuel does a Black Hawk run on? How did jeep become a word? Do aircraft have gears? When was the fisrt military tank drive? What type is in Massey Ferguson 202 tractor? Who would win a tank or a jet? What were the nicknames of the Douglas jets used in Vietnam? What is the height of Massey Ferguson tractor? What does 4-Hi mean? Should the SR-71 Blackbird be brought back into service? How many tanks are there on spdc forcados terminal warri? What is the importance of Bell Aircraft? What type of sighting instruments-possibly theodolite type or gyroscopic were used on the Caproni Bomber of l92l They were not fitted during its catastrophic if non-fatal test flight Zeiss? What are some things that are about 200 feet long? Can a helicopter fly high? Are a bazooka and a missile launcher the same thing?