jump jet

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A jet aircraft capable of vertical takeoffs and landings.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun informal, military A jet airplane with fixed wings that is capable of vertical takeoff and landing as well as hovering, and, in some cases, also capable of becoming airborne in a conventional manner by gaining airspeed on a runaway.