Defensive aids system

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DAS of HH-60H.
Merkava Mk IVm with DAS Trophy.

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[edit]


  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.