PURPOSE: To obtain an air frame launcher which allows mounting an air frame having a diameter larger than a cylindrical member that contafins a plasma generator, has a simple construction, is easy to manufacture, can be made small-sized and Iightweight and permits cutting down production costs.

CONSTITUTION: A plasma generator has an insulator 11 with a discharge chamber 18 inside, an earth electrode 15 installed in the discharge chamber 18, a central electrode 16, a fusible element 19 that is connected between the electrodes 18 and 19 and melts when energized, and a plasma forming member 24 that generates plasma when the fusible element 19 contained in the discharge chamnber 18 melts. A launching cylinder 26 is supported around the circumference of the plasma generator and an acting element 29 to increase the pressure of the plasma is contained in a housing space 28 provided at the front and in the lanching cylinder 26. An air frame 30 is integrally formed at the front end of the launching cylinder 26.