The three main contenders for the US Air Force's (USAF's) fighter trainer replacement programme (T-X) are collating and preparing all of their flight data ahead of the submission deadline that is due in the coming days. Boeing, Leonardo DRS, and Lockheed Martin have each been briefing their T-X products at the Paris Air Show, days before the flight test data on the BTX, T-100, and T-50A respectively must be handed into the USAF on 28 June.
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