To each aircraft its own towbar

It shouldn’t be any surprise that airplanes of different nations made by different companies at different times have to be handled in different ways on the ground.

A peek in an FHC back room reveals a horde of unique towbars used on the planes. Each one pulls a certain aircraft (or maybe two). Interestingly, one of the smallest bars goes to the nose wheel gear of the big B-25 Mitchell. The biggest bar is for the P-47 Thunderbolt.

The most difficult to master is the towbar for the Polikarpov I-16, which features four slippery castering wheels.