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17th July 2009 | 13:09

#3709 (permalink)

augustusjeremy

Joined: Jun 2009

Posts: 65

Likes: 0

From: Somewhere out there

TCAs - groundspeed

Quote:

TCAS has no airspeed input

Maybe it has groundspeed as input.

I suppose - please correct me if i am wrong - that groundspeed is provided by the Inertial Reference Units only (not ADRs).