Decades ago, I used to skydive out of a small airport in Florida [1] with a dirt/grass runway, albeit a very long one, over 6000 feet. Nothing flew out of ther

Decades ago, I used to skydive out of a small airport in Florida [1] with a dirt/grass runway, albeit a very long one, over 6000 feet. Nothing flew out of there except for the jump plane and crop dusters. One day, the jumpers were surprised to see a fully equipped 737 on the dirt runway. We found out it was running trials for unpaved runway landings as an unnamed African customer had requested. [1] https://www.airnav.com/airport/X58 https://www.airnav.com/airport/X58