{"id":14508,"date":"2025-06-07T16:25:48","date_gmt":"2025-06-07T10:55:48","guid":{"rendered":"https:\/\/ibexaviation.com\/pilot-training\/?p=14508"},"modified":"2025-06-10T12:45:25","modified_gmt":"2025-06-10T07:15:25","slug":"flight-data-recorder-cockpit-voice-recorder","status":"publish","type":"post","link":"https:\/\/ibexaviation.com\/pilot-training\/flight-data-recorder-cockpit-voice-recorder\/","title":{"rendered":"Flight Data Recorder &#8211; Cockpit Voice Recorder"},"content":{"rendered":"\n<h2>Flight Data Recorder and Cockpit Voice Recorder<\/h2>\n\n\n\n<h3>Introduction to FDR<\/h3>\n\n\n\n<ul><li>Flight data recorder preserves aircraft data for accident investigation<\/li><li>Trend analysis and trouble shooting is also done using data from FDR<\/li><li>FDR records data for 10 to 25 hours of flight data and kept in Black box<\/li><li>Black box is painted red or orange and is located in tail fin<\/li><li>The container is resistant to fire, heat, shock and water damage<\/li><li>Tail fin location reduces damage due to G forces in an accident<\/li><\/ul>\n\n\n\n<h3>Components of FDR<\/h3>\n\n\n\n<ul><li>Flight data recorder is mandatory for all aircrafts with all up weight of 5700 Kg<\/li><li>The FDR consists of four main components<ul><li>Recording system<\/li><li>Control unit on the overhead panel<\/li><li>Control unit on the pedestal<\/li><li>Data Interface and Acquisition Unit<\/li><\/ul><\/li><li>Data from DIAU is sent to the \u00e2\u20ac\u02dcAeroplane Condition Monitoring System\u00e2\u20ac\u2122<\/li><li>\u00e2\u20ac\u02dcAircraft Integrated Data System\u00e2\u20ac\u2122 can read this data for trend analysis<\/li><li>\u00e2\u20ac\u02dcAirborne Communication and Reporting System\u00e2\u20ac\u2122 transmits data to ground<\/li><\/ul>\n\n\n\n<h3>Control Panel of FDR<\/h3>\n\n\n\n<ul><li>Overhead control panel controls two systems<ul><li>Cockpit voice recorder (CVR)<\/li><li>Flight Data Recorder<\/li><\/ul><\/li><li>GND CTL switch can be selected to ON or AUTO<\/li><li>ON means that the CVR and the DFDR are energized<\/li><li>AUTO means that the CVR and the DFDR will be energized on two conditions<ul><li>On the ground with one engine running<\/li><li>In flight either with engine running or stopped<\/li><\/ul><\/li><li>EVENT button in centre pedestal marks an event for analysis<\/li><\/ul>\n\n\n\n<h3>Introduction to Cockpit Voice Recorder<\/h3>\n\n\n\n<ul><li>Cockpit voice recorder is designed to record cockpit voices for investigation<\/li><li>Automatically records the last 30 minutes of voice transmissions<\/li><li>CVR is co-located with FDR in the shock and heat proof Black Box<\/li><li>Black box has an underwater locating device transmitting ultrasonic pulses<\/li><li>CVR automatically switches itself on three conditions<ul><li>AC power is applied to the aircraft<\/li><li>Engine is running<\/li><li>Aircraft is airborne<\/li><\/ul><\/li><\/ul>\n\n\n\n<h3>Recording Channels<\/h3>\n\n\n\n<ul><li>CVR records five types of sounds<ul><li>Radio transmissions<\/li><li>Sounds in the flight deck<\/li><li>Inter-phone system<\/li><li>Aircraft voice or audio signals<\/li><li>PA system communications<\/li><\/ul><\/li><li>Press ERASE button for two seconds to erase recordings on ground<\/li><li>Possible only when engines are stopped with parking brakes on<\/li><\/ul>\n\n\n\n<h2>Share this Page<\/h2>\n","protected":false},"excerpt":{"rendered":"<p>Flight Data Recorder and Cockpit Voice Recorder Introduction to FDR Flight data recorder preserves aircraft data for accident investigation Trend analysis and trouble shooting is also done using data from FDR FDR records data for 10 to 25 hours of flight data and kept in Black box Black box is painted red or orange and is located in tail fin The container is resistant to fire, heat, shock and water damage Tail fin location reduces damage due to G forces in an accident Components of FDR Flight data recorder is&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"disable_featured_image":false},"categories":[345],"tags":[],"_links":{"self":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/posts\/14508"}],"collection":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/comments?post=14508"}],"version-history":[{"count":0,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/posts\/14508\/revisions"}],"wp:attachment":[{"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/media?parent=14508"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/categories?post=14508"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ibexaviation.com\/pilot-training\/wp-json\/wp\/v2\/tags?post=14508"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}