Accession Number : ADA557615


Title :   Rotary-Wing Brownout Mitigation: Technologies and Training (Remedes contre le phenomene de brownout sur les appareils a voilure tournante: Technologies et entrainement)


Descriptive Note : Technical rept.


Corporate Author : NATO RESEARCH AND TECHNOLOGY ORGANIZATION NEUILLY-SUR-SEINE (FRANCE)


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a557615.pdf


Report Date : Jan 2012


Pagination or Media Count : 182


Abstract : The RTO HFM-162 Rotary-Wing Brownout Mitigation Task Group was formed to examine the effects of Rotary-Wing Brownout (RWB) and whiteout on pilots during operations. Brownout is the condition developed by recirculating rotor downwash as a helicopter lands or takes off in an arid or a snowy (whiteout) environment. The dust, dirt, or snow that is developed by the downwash renders out-the-cockpit visibility severely degraded or non-existent. The resultant mishaps due to the Degraded Visual Environment (DVE) are a serious problem and partner nations report losses of aircraft and personnel. This study was undertaken to investigate the incidence and severity of the problem in partner nations, to examine and document current and planned technology developments, and to evaluate and document the brownout training procedures within NATO. To provide a true, multi-purpose helicopter sensor, the TG members envision laser radar technology integrated with a navigation forward looking infrared radar. Intuitive hovering and landing cockpit display symbology, such as that described in this report, must also be an integral part of an effective system for DVE landings.


Descriptors :   *ROTARY WING AIRCRAFT , *WHITEOUT , ACOUSTIC EQUIPMENT , DISPLAY SYSTEMS , FLIGHT , FLIGHT CONTROL SYSTEMS , LANDING , OPTICAL RADAR , RISK MANAGEMENT , SYMBOLS , THREE DIMENSIONAL , TOUCH


Subject Categories : Military Aircraft Operations
      Helicopters
      Optical Detection and Detectors
      Human Factors Engineering & Man Machine System


Distribution Statement : APPROVED FOR PUBLIC RELEASE