On a daily basis, the RSAF’s Advanced Medium Range Air-to-Air Missiles (AMRAAMs) are put on standby and exposed to the local humid environment. Over the years, cracks emerged on the radome of the missile. The extensive checks conducted by DSTA and the manufacturer revealed that moisture absorption by the radome due to the local climate had caused the radome to expand to a point where it cracked.

The manufacturer’s proposed solution was to place the exposed missiles back to their humidity-controlled container once every six months. This solution, however, was unable to eliminate the moisture absorption entirely. Furthermore, it put a logistical strain on the RSAF to track and rotate the missiles.

A DSTA team devised a creative way to alleviate moisture absorption by designing an airtight radome cover with desiccant that not only absorbs moisture but also seals the AMRAAM from local climate conditions when the missiles are put on standby. Through the use of these covers, the missiles will only need to be rotated on an annual basis. This saves the RSAF an estimated 100 man-hours per year. Besides the savings in manpower, operational readiness is also enhanced significantly.

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