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A football helmet is a type of protective headgear used mainly in gridiron football, although a structural variation has occasional use in Australian rules football. It consists of a hard plastic shell with thick padding on the inside, a face mask made of one or more plastic-coated metal bars, and a chinstrap. Each position has a different type ...
Zenith STOL CH 701. The Zenith STOL CH 701 and CH 750 are a family of light, two-place kit-built STOL aircraft designed by Canadian aeronautical engineer Chris Heintz through his Midland, Ontario, based company, Zenair. The CH 701 first flew in 1986 and the design is still in production. [ 1 ][ 2 ] The CH 750 was first introduced in 2008. [ 3 ]
Football helmets bear the logo of the team and the team colors. By the mid-1980s, the football helmet had become a complex, highly engineered piece of equipment. The inside of the helmets was lined with foam padding and plastic pods, or an inflatable layer designed to absorb the shock of impact and create as tight as fit as possible.
The first plastic football helmet came in 1940. It was invented and patented by John T. Riddell and his son John T. Riddell Jr., of the John T. Riddell Company in Chicago, a sporting goods provider. The single molded shell was stronger, lighter, longer-lasting, and did not rot the way leather does when damp. Colors could also be baked into the ...
TCU was the last school in college football to wear leather helmets, switching to hard plastic helmets in 1946. Prior to 1946, the TCU football team wore either black helmets with a purple stripe or purple helmets with a black stripe. Since the introduction of plastic, the TCU helmet has gone through a number of design changes.
The rectangular field of play used for American football games measures 100 yards (91.44 m) long between the goal lines, and 160 feet (48.8 m) (53.3 yards) wide. The field may be made of grass or artificial turf. In addition, there are two end zones on each end of the field, extending another 10 yards (9.144 m) past the goal lines to the "end ...
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