What does RA stand for?

Radio Altimeter

This definition appears very rarely and is found in the following Acronym Finder categories:

Science, medicine, engineering, etc.

Other Resources:

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Reflectance at 837 Natural Melanin Ruehl N.925 (Abercrombie & Fitch brand) Earned Run Average Plus (arcane baseball statistic; used to measure pitching dominance versus the league) Irish Republican Army Postal Tax Stamp (Scott Catalogue prefix; philately) Rabbinical Assembly Radar Altimeter Radial Artery Radiallahu Anhu (companions of Prophet Mohammed) Radio Access		Radio Australia Radio Authority (UK) Radiocommunication Act Radiocommunication Assembly Radiocommunications Agency (within DTI) Radiographic Absorptiometry (bone density calculation using a hand X-ray and a small metal wedge) Radiological Assessment Radiology Assembly of Medical Group Management Association Radium Radon

Samples in periodicals archive:

BOEING ADVISES PILOTS NOT TO TRUST ALTIMETER IF THEY ARE NOT SURE Aircraft manufacturer Boeing accepted in an indirect way that the recent THY plane crash in the Netherlands stemmed from the failure in the aircraft's radio altimeter device.

TURKEY-PRESS SCAN (3)

May 4, 2009 Turkish Airlines, Boeing EASA has published a safety information bulletin alerting Boeing 737 operators of an "erroneous low range radio altimeter (LRRA) indication" that has been linked to the fatal crash of a Turkish Airlines Boeing 737-800 at Amsterdam Schiphol on 25 February.

Airline News - Europe

At a height of 1,950 feet the left radio altimeter suddenly showed a change in altitude -- from 1,950 feet to minus eight feet -- and passed this on to the automatic pilot.

US lawsuit filed over Turkish Airlines crash

As a result, the airliner flew 36 more passenger-carrying flights before maintenance crews discovered the problem was really a fault in a radio altimeter, not the autopilot, the agency said.

FAA seeks $7M fine against American Airlines

So Sanders instead went to work for the military, devising a radio altimeter in his basement.

'The Bill Gates of his time' dies at 89

data link, and radio altimeters that keep track of helicopters in the network.

Technology helps prevent mid-air mishaps

This digital system represents a step forward compared to traditional analog Radio Altimeters installed on previous aircraft.

Rockwell Collins Awarded Communication, Data Network, Landing Systems ...

Secondly, modern aircrafts are fitted with a radio altimeter, which gives aural callouts to the pilots in their headsets every 10 feet below 50 feet AGL.

Safety paramount