on the figure for the cells 2 and rectangular ones for the chimney 3 the cells 2 and the chimney 3 open on the outside at one end of the launcher located on the top through an upper plate 4 which may correspond to a deck of a surface marine vessel doors 5 and 6 close the cells 2 and the chimney 3 at rest and clear them by opening around hinges 7 and 8 the launcher further comprises a lower plenum chamber 9 the ceiling of which is formed by a base plate 10 to which the remainder of the structure 1 is connected and which is provided with apertures at the location of the cells 2 and of the chimney 3 to provide passage for the combustion gases from those cells into the latter fig2 shows a possible arrangement of both of these launchers on a same support giving the possibility of firing up to sixteen missiles the launchers are placed side by side with the chimneys 3 in alignment by their main extension direction a small gap separating them a comparative diagram of the invention is illustrated in fig3 the same number of sixteen cells is used for the same number of two launchers 11 here the launchers 11 have a square shape and the cells 12 are placed at its periphery three on each side or also four at the angles of the square and four between two neighboring angles a single chimney 13 placed in the centre of the square is again found between the four cells 12 at the middle of the sides unlike the prior design the chimney 13 is not elongated but circular a.