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AT&T, Honeywell to launch 4G in-flight broadband system

SEATTLE, April 28 (Reuters) - AT&T Inc and Honeywell International Inc said on Monday that they have agreed to launch a high-speed 4G LTE-based in-flight connectivity service for airlines and passengers in commercial, business and general aviation in the U.S.

The system would use air-to-ground cell technology, drawing on AT&T's network and using Honeywell technology on the aircraft, officials from Honeywell said in an interview.

Gogo Inc currently provides an air-to-ground technology that is available on about 80 percent of wired commercial aircraft in the U.S.

Honeywell said the AT&T system would have greater speed and bandwidth than do existing systems and would begin operating in 2015 in the United States.

Gogo shares fell 14 percent in after-market trading, following the announcement.

(Reporting by Alwyn Scott; Editing by Steve Orlofsky)