Article · Wikipedia archive · Last revised Jun 9, 2026

Defensive aids system

A defensive aide suite (DAS) is a military aircraft system which defends it from attack by surface-to-air missiles, air-to-air missiles and guided anti-aircraft artillery. A DAS typically comprises chaff, flares, and electronic countermeasures combined with radar warning receivers to detect threats. On some modern aircraft, the entire system is integrated and computer-controlled, allowing an aircraft to autonomously detect, classify and act in an optimal manner against a potential threat to its safety.

Last revised
Jun 9, 2026
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DAS of HH-60H. source ↗
Merkava Mk IVm with DAS Trophy. source ↗

A defensive aide suite (DAS) is a military aircraft system which defends it from attack by surface-to-air missiles, air-to-air missiles and guided anti-aircraft artillery. A DAS typically comprises chaff, flares, and electronic countermeasures combined with radar warning receivers to detect threats. On some modern aircraft (Lockheed Martin F-35 Lightning II), the entire system is integrated and computer-controlled, allowing an aircraft to autonomously detect, classify and act in an optimal manner against a potential threat to its safety.

A Defensive Aid Suite (DAS) system can be used in conjunction with the NGVA architecture in combat vehicles as well.1

See also

See also

References

References

  1. Kyriakos Houliotis, Panagiotis Oikonomidis, Periklis Charchalakis, Elias Stipidis. (2018). Mission-Critical Systems Design Framework / Advances in Science, Technology and Engineering Systems Journal, Vol. 3, No. 2, 128-137.