How much does the R22 helicopter cost?

What fuel does a helicopter EC135 use? What is the top of a helicopter called? What Instrument System is used in military aircraft? Who invented the Armored tank? What type of engine does the stealth aircraft have? What is armament? Did oszkar asboth invent the helicopter? Do robots fly airplanes? Which type of missile container has yellow at various places on the container or box? What effect will an empty short bottle silencer have on bullet 350 cc engine? What type fuel does an MQ 9 reaper use? What parts function the helicopter? How many planes flew in each atomic bombing mission over Japan and what were their types and roles in the mission? How do you beat the helicopters in mw3 on survival? What type of motor does a spitfire have? How does bulldozer drive line work to turn? What is a better RC car a buggy or a truck? World War 2 carbines of Germany? Does the navy use airplanes? When was the B-52 stratofortress first made?