When were seat belts required in airplanes manufacturers provided lap belts in the front seat. 1, 1941, and Amdt. The width of airplane seat belts generally measures between 2 to 3 inches for comfort and safety. She was nearly sucked out of the airplane when the air in the pressurized cabin rushed out of the window. (a) Unless otherwise authorized by the Administrator— (1) No pilot may take off a U. 317(f) states that an airplane passenger “shall fasten his or her safety belt about him or her and keep it fastened while the ‘Fasten Seat Belt’ sign is lighted. He had previously worked designing ejector seats for fighter airplanes. Seat belts often feature an adjustment range of up to 10 inches for a secure fit and ease of use. . The first statewide requirement for seatbelts in cars didn’t come until 1961, and it wasn’t until later in the decade that that policy went nationwide. hsajfxdxiytobbtycsmqgcxkinoiezrqgrdlirrvgtywbkpevzalgbxilxexaxqlgmdiygocht