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ARINC: VDL Mode 2 Now Has More Than 2,200 Aircraft Users ARINC says more than 2,200 individual aircraft use VDL (VHF digital link) Mode 2 datalink communications, about 2,000 of which are flown by 40 airlines and 200 by the military. VDL Mode 2 usage has been rising sharply since 2004, according to ARINC. Steve Means, vice president of ARINC Aviation Solutions, said, "We are now handling 3 million VDL messages a month, and 90% of the growth has taken place in just three years. We're logging 80 new tail numbers a month as well." Today, most commercial aircraft are delivered with VDL avionics as standard equipment, ARINC says. VDL-2 provides expanded bandwidth - ten times that of ACARS (aircraft communications addressing and reporting system) - which not only provides more channel capacity needed for ATC and AOC (airline or aircraft operational control), but allows a whole new range of applications, including graphical weather, electronic charts, and engine/aircraft health monitoring programs. VDL Mode 2 also supports traditional ACARS data link applications via a hybrid service known as AOA, or ACARS over AVLC (aviation VHF link control). Importantly, VDL-2 also can support CPDLC (controller-pilot data link communications), which has been in use since 2004 at Eurocontrol's Maastricht Upper Air Center as part of Europe's Link 2000+ program, and can do the same for the FAA's NexGen (next generation air transportation system) as that evolves. 06-23-2007. |
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