Air data inertial reference unit: Difference between revisions

Revision as of 15:31, 18 February 2023

Revision as of 21:55, 1 April 2023

Line 56:

|access-date=2008-07-14

|publisher=Boeing Aero Magazine, Issue 08

| archive-url= https://web.archive.org/web/20080612001822/http://www.boeing.com/commercial/aeromagazine/aero_08/erroneous_textonly.html| archive-date= 12 June 2008 <!--DASHBot-->| url-status= live}}</ref> Ram air pressure and static pressures used in calculating [[airspeed]] are measured by small ADMs located as close as possible to the respective [[Pitot tube|pitot]] and static pressure sensors. ADMs transmit their pressures to the ADIRUs through [[ARINC 429]] data buses.<ref>{{cite web |url=http://www51.honeywell.com/aero/common/documents/Air_Data_Module.pdf |publisher=Honeywell |title=Air Data Module |access-date=25 December 2016 |archive-date=3 March 2016 |archive-url=https://web.archive.org/web/20160303170855/http://www51.honeywell.com/aero/common/documents/Air_Data_Module.pdf |url-status=dead }}</ref>

===Inertial reference===

Line 187:

===Qantas Flight 71===

[[File:VH-QPG A330-303 Qantas SIN 02APR06 (5915938802).jpg|thumb|250x250px|VH-QPG, the aircraft involved as flight 71]]

On 27 December 2008, Qantas Flight 71 from Perth to Singapore, a different Qantas A330-300 with registration VH-QPG<ref>{{cite web |url=http://asasi.org/papers/2009/QF72%20Learmonth%20A330%20Pitch%20Events%20Presented%20by%20Mike%20Walker.pdf |title=Learmonth A330 pitch events |author =Mike Walker |access-date=2014-12-17 |archive-date=2014-12-17 |archive-url=https://web.archive.org/web/20141217192357/http://asasi.org/papers/2009/QF72%20Learmonth%20A330%20Pitch%20Events%20Presented%20by%20Mike%20Walker.pdf |url-status=dead }}</ref> was involved in an incident at 36,000 feet approximately {{convert|260|nmi|km}} north-west of Perth and {{convert|350|nmi|km}} south of [[RAAF Learmonth|Learmonth Airport]] at 1729 WST. The autopilot disconnected and the crew received an alert indicating a problem with ADIRU Number 1.<ref>{{cite press release

| title = Qantas Airbus A330 incident, 480km North West of Perth on 27 December 2008

| publisher = Australian Transport Safety Bureau