National Geographic : 1944 Aug
"That Doesn't Look Like a Barn!" Says Long Ears, Balking at His First Plane Ride Even airborne soldiers need pack mules. In specially prepared bamboo stalls, six mules were carried in this transport plane, three ingliders. After practicing at the India base, the mules usually became accustomed to air travel. One kicked a hole in the side of a glider at 8,000 feet-highest mule kick ever recorded (page 134).