Abstract: A multiple-beam electronic scanning antenna including an array of phase-shifters (2, Dij). The N simultaneous beams are obtained in N directions by a law of excitation (fij) applied to each computed phase-shifter (Dij) by summing the phase laws &psgr;1, &psgr;2, . . . &psgr;k, . . . &psgr;N associated respectively with each 1, 2, . . . k, . . . N order direction and by applying the resultant phase-shift (&psgr;tij) to the phase-shifter, without applying the resultant amplitude modulation (&rgr;ij). The multiple-beam electronic scanning antenna especially is applicable to uniquely phase-controlled antennas in satellite or terrestrial communications requiring simultaneous communications with several variable sites.

Abstract: Support base for supporting accessories on the flexible wall of an inflatable body and an pneumatic boat fitted therewith. A mounting base (10) intended for the fixing of an accessory onto the flexible wall of an inflatable body, such as an inflatable buoyancy fender of an inflatable boat, characterized in that it includes a stack (11) of several layers of flexible material fixed one to the other and passed through by at least one fitting (16) appropriate to the fixing of the aforesaid accessory, the aforesaid mounting base being fixable to the inflatable body flexible wall, the number of layers of the stack being determined so that the thickness of the stack corresponds approximately to the height of an anchoring part of the fitting.

Abstract: An inflatable boat (1) comprising laterally two inflatable buoyancy fenders (2) connected by a bottom (13) rigid at least transversely and by an underlying hull (4) presenting an approximately V transverse section, characterised in that a flexible bottom (16), lining the rigid bottom (3) and underlying it, is fixed in a sealed way to the fenders (2) and in that the aforementioned hull (4) is rigid at least in a central longitudinal strip (6) in the shape of a V gutter and is constituted by several sections (11) assembled longitudinally end to end in a removable way and held with the help of removable fixing means (8).

Abstract: Inflatable small craft including at least one inflatable tube (1) forming two substantially parallel branches (2) meeting towards the front to form a stem (3), a bottom sheet (5) forming a V-shaped hull held taut by a longitudinal keel (6) which is interposed between a bottom (4) which is rigid in the transverse direction held along the two aforementioned branches (2) and the bottom sheet (5) which is connected to the tube (1) along the peripheral edges of the bottom (4). The craft additionally includes two auxiliary floats (7) running under the bottom (4) substantially parallel to the respective branches (2) while being offset towards the center with respect to these branches. The auxiliary floats extend close to the branches while being physically separate from them.