Quarter midget racing is a form of automobile racing. The cars are approximately one-quarter (1⁄4) the size of a full-size midget car. The adult-size midget being raced during the start of quarter midget racing used an oval track of one-fifth of a mile in length. The child's quarter midget track is one quarter that length, or 1⁄20 mile (264 feet; 80 m).
An adult-size midget in the 1940s and 1980s could reach 120 mph (190 km/h), while the single-cylinder 7 cu in (110 cc) quarter midget engine could make available a speed of 30 mph (48 km/h) in a rookie class (called novices), or one-quarter the speed of the adult car. Most of the competitive classes run speeds near 45 mph (72 km/h). Current upper-class quarter midgets can exceed 45 miles per hour, but remain safe due to the limited size of the track. Quarter midget racecars have four-wheel suspension, unlike go-karts.
The drivers are typically restricted to ages 5 to 16. Tracks are typically banked ovals one-twentieth of a mile long, and have surfaces of dirt, concrete, or asphalt.
Hi all,
I'd like to resurrect an old thread in which the original question is still yet unresolved in my mind.
Simply put, in a simple quarter car model, the tyre can never leave the ground as it is modelled as a spring attached to the ground surface.
In reality however, subject to input, the...