In 1934, Tubal Claude Ryan created a new corporation, aptly named the Ryan Aeronautical Corp., whose first design, the ST—for sport trainer—became an instant classic. As a trainer, the ST was a big improvement over its competitors.
The U.S. Army showed immediate interest in the new machine and ended up ordering an off-the-shelf ST-A for evaluation that led to the acquisition of a grand total of 1,203 PT-16, PT-20, PT-21, and PT-22 aircraft, the last of the series being delivered in 1942.
Other countries also showed a deep interest in the Ryan, and the plane sold reasonably well in South America and China; however, Ryan’s biggest export customer was the Dutch government, which ordered 108 STM-2s in 1940.
Never a cheap airplane, the surviving Ryans are now the pride and…