29 December 2004 Infrared countermeasure flare performance measurements using a gas gun
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Abstract
A unique and cost effective measurement facility called the Reusable Aerodynamic Flare Ejection Capability (RAFEC) has been developed at the Defence Science and Technology Organisation (DSTO), Australia. The RAFEC system involves the use of a reusable, carrier projectile that is launched from a 10 inch, nitrogen driven gas gun. The IRCM flare is loaded in the carrier projectile and the gas gun launches the carrier projectile with a known velocity of between approximately 350 to 650 knots. At a pre-determined time after firing and in the field of view of the measuring instrumentation, the flare is ejected from the carrier projectile for performance measurements to be undertaken. The temporal, spatial and spectral quantities were accomplished with the instruments fielded around the gas gun line of fire and the trajectory is derived from the spatial measurements. The data will be used for hardware in the loop simulations and modelling. Further improvements such as; (1) multiple (maximum of three) flare ejection, (2) 1”x1”x8” format flares made to the carrier projectile, and (3) design and manufacture of the puston, a new item of firing hardware to obtain lower muzzle velocities have enhanced the RAFEC capability. Thus the RAFEC system provides a more realistic IRCM performance measurement capability as it incorporates the deceleration effects experienced by the flare on deployment.
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Lakshmanan Krishnamoorthy, Lakshmanan Krishnamoorthy, Michael Stringer, Michael Stringer, Mark R. G. Taylor, Mark R. G. Taylor, S. Kollias, S. Kollias, } "Infrared countermeasure flare performance measurements using a gas gun", Proc. SPIE 5615, Technologies for Optical Countermeasures, (29 December 2004); doi: 10.1117/12.583143; https://doi.org/10.1117/12.583143
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