Abstract: A decoy flare for infrared (IR) seeking missiles comprises a tubular shell with a cover member hermetically sealed to an outer front edge of the tubular shell to form a container for a pyrophoric liquid. The cover member has a central rupturing disc that ruptures at a predetermined pressure, a nozzle cap with a nozzle opening being attached to the cover member adjacent an exterior surface of that rupturing disc. Pressure applied by a mechanism to the pyrophoric liquid can rupture the rupturing disc and eject the pyrophoric liquid through the nozzle. A pre-heating chamber formed by an enclosure surrounds the nozzle opening in order to provide for more reliable ignition of the pyrophoric liquid at high altitudes and low flow rates, that enclosure having an outer surface containing a number of perforations through which air can enter the pre-heating chamber and through which pyrophoric liquid can be ejected from the chamber into the atmosphere.

Abstract: A decoy flare for infrared (IR) seeking missiles comprises a tubular outer shell with a first rupturing disc sealing a rear end of the outer shell and a cover member with a second rupturing disc sealing a front end of the outer shell. These form a sealed container for a pyrophoric liquid. A nozzle cap is attached to the cover member with a nozzle being located in front of the second rupturing disc. A piston in the container adjacent the first rupturing disc separates the pyrophoric liquid from the disc. A holder for a gas generator, a disc of energetic material, is connected in sealed relationship to the container to position the gas generator adjacent the first rupturing disc and form a gas generating chamber between the holder and that disc. That holder contains an ignition mechanism for the gas generator and a seal to prevent gases from escaping via the ignition mechanism after it is activated.

Abstract: A tracer composition with a relatively high luminous output and a moderate burn rate includes from 35 to 47% by weight magnesium; from 40 to 53% by weight strontium nitrate, from 2 to 10% by weight magnesium carbonate, from 0 to 6% by weight color intensifier; from 0 to 6% by weight retardant and from 3 to 8% by weight of a synthetic polymer binder selected from the group consisting of (i) a terpolymer of vinylidene fluoride, hexafluoropropylene and polytetrafluoroethylene and (ii) a copolymer of vinylidene fluoride and hexafluoropropylene.