Taking off from the parking lot to deliver P 40s from the Curtis factory to the airport

 Apparently, due to wartime production Curtiss quickly outgrew its Kenmore Avenue plant, and had to think of creative ways to eliminate bottlenecks in its overtaxed production process, and limited space for storing completed airplanes. Its previous method of transporting the planes by truck couldn't keep up with wartime increased production.

 http://justacarguy.blogspot.com/2016/04/fantastic-how-disassembled-it-for.html

 Instead of train or truck, Curtiss test pilots simply flew newly minted aircraft right off the assembly line, using the parking lot of the factory as a makeshift runway, and used this opportunity as a test flight when transiting to the Buffalo Airport for final checkout and delivery.

Thanks Steve!