Even the military could choose the best-designed aircraft among three manufacturers, after all they were all Arthur's enterprises, so there was no loss for Arthur.
After the selection of sites for the Douglas and Boeing companies, the most important task was to build their own wind tunnels.
Wind tunnels are critical for the design and construction of aircraft because they can simulate the airflow around the aircraft, ensuring the design is sensible and, on that basis, creating the fastest and most stable planes.
The world's first wind tunnel was probably built by the British approximately 58 years ago; it was a wooden box with open ends, 45.7 cm × 45.7 cm in cross-section and 3.05 meters in length.
Although this wooden box was rudimentary in appearance, it successfully measured the drag experienced by objects moving through the air.
Since the birth of airplanes, the construction of wind tunnels has continually been a topic of exploration for major aircraft manufacturers.
