Homemade Pusher Model Propeller Race Car, 1930-1940

Tether cars, gas-powered model race cars, were popular in the 1930s and 1940s. They were raced individually while tethered to a central pivot, or against each other on a scaled-down board track. Some car designs took inspiration from model airplanes and used propellers to push the vehicles forward. Propeller pusher systems were easy to build, but they weren't very efficient.