1933 Flying And Glider Manual

Glendale California the world's first flying train an airplane with free gliders in tow takes off at Grand Central airport getting off the ground is a ticklish job see the way that gliders are dipping but they finally rise in a three ship formation with the locomotive airplane pulling them along the idea is to tow the gliders to their destination and then cut them loose as they reach their goal here comes one lighting gracefully down to a safe landing without a hitch and sliding along to line up with the leader in a successful experiment the last ones having trouble yellow sticks over and lands on a wing but he's unhurt and makes a real grandstand finish