Projectile

Abstract

A projectile including a jacket, a core and a stabilizer part, the stabilizer part including a shaft and a fin part fastened to the shaft at the first end of the stabilizer part, whereby in the core of the projectile is a cylindrical cavity, which is closed at least partly with a shutoff part in which shutoff part is an aperture for the shaft of the stabilizer part, whereby a piston is fastened to the second end of the shaft of the stabilizer part, which piston is disposed in a cavity for forming a space at the front end of the piston and through the shaft of the stabilizer part a channel passes into the space and in the front part of the cavity is a solid fuel, which is made to ignite by means of the powder pressure produced in conjunction with firing of the projectile.

1 . Projectile comprising a jacket, a core and a stabilizer part the stabilizer part comprising a shaft and a fin part fastened to the shaft at the first end of the stabilizer part whereby in the core of the projectile is a cylindrical cavity which is closed at least partly with a shutoff part, in which shutoff part is an aperture for the shaft of the stabilizer part, whereby a piston is fastened to the second end of the shaft of the stabilizer part, which piston is disposed in a cavity for forming a space at the front end of the piston and through the shaft of the stabilizer part a channel passes into the space in which case movement is brought about by powder pressure for pushing the stabilizer part out, wherein the front part of the cavity is solid fuel which when combusting maintains or accelerates the velocity of the projectile 
     
     
         2 . Projectile according to  claim 1 , wherein the shaft of the stabilizer part widens as it approaches the piston and at the root of the piston is larger in diameter than the aperture of the shutoff part for fastening the stabilizer part with friction to the shutoff part. 
     
     
         3 . Projectile according to  claim 1 , wherein the shaft of the stabilizer part comprises more than one part, which parts are telescopically openable and closable, and fasten to each other by means of friction in their open position. 
     
     
         4 . Projectile according to  claim 3 , wherein the fin part is fastened to one of any of the parts of the telescopic shaft 
     
     
         5 . Projectile according to  claim 3 , wherein the fin part comprises more than one part, which parts of the fin part are fastened to more than one part of the telescopic shaft. 
     
     
         6 . Projectile according to  claim 1 , wherein the fin part of the stabilizer part is shaped to bring about rotational movement of the projectile around the axis of its own longitudinal axis. 
     
     
         7 . Projectile according to  claim 1 , wherein the shutoff part is fastened to the inside surface of the cavity with threads 
     
     
         8 . Projectile according to  claim 1 , wherein that on the jacket of the projectile is at least one sealing ring, which seals the projectile against the inside surface of the barrel. 
     
     
         9 . Projectile according to  claim 1 , wherein the case is fastened to the shutoff part. 
     
     
         10 . Projectile according to  claim 1 , wherein the case is fastened to the shutoff part and to the jacket of the projectile 
     
     
         11 . Projectile according to  claim 1 , wherein the case is fastened to the jacket of the projectile 
     
     
         12 . Projectile according to  claim 1 , wherein there is beveling in the channel at its space end. 
     
     
         13 . Projectile according to  claim 1 , wherein the projectile further comprises a pressure detonator in the cavity for igniting the solid fuel 
     
     
         14 . Projectile according to  claim 1 , wherein from the space of the cavity of the projectile are two or more channels in addition to the channel, from which channels the combustion gases of the solid fuel are able to exit from the space.