• Airbus targets late September for A350F first flight.
• The A350F aims to challenge Boeing's dominance in the global air cargo market.
• Airbus plans to complete flight testing and deliver to customers by the end of next year.
• The program is a critical strategic push into the large-freighter segment.

This development may indicate Airbus's growing confidence in its ability to challenge Boeing's long-standing dominance in the global air cargo market. The A350F program could potentially disrupt the market, which suggests a significant shift in the competitive landscape. The success of the flight test campaign may determine whether Airbus can establish a strong foothold in heavy cargo operations.