Piper J-4

Imagine: Wikimedia Commons

The Piper J-4 was an American trainer and private owner aircraft that first flew in 1938, providing affordable flight training and personal flying. Measuring 6.9 meters in length with an 11-meter wingspan, it achieved 160.9 kilometers per hour and 579.4-kilometer range on single-engine power. The simple design reduced construction and operating costs. Its economy suited depression-era buyers seeking affordable aviation participation.