Applicability.

§ 31.1 Applicability. (a) This part prescribes airworthiness standards for the issue of type certificates and changes to those certificates, for manned free balloons. (b) Each person who applies under Part 21 for such a certificate or change must show compliance with the applicable requirements of this part. (c) For purposes of this part— (1) A captive gas balloon is a balloon that derives its lift from a captive lighter-than-air gas; (2) A hot air balloon is a balloon that derives its lift from heated air; (3) The envelope is the enclosure in which the lifting means is contained; (4) The basket is the container, suspended beneath the envelope, for the balloon occupants; (5) The trapeze is a harness or is a seat consisting of a horizontal bar or platform suspended beneath the envelope for the balloon occupants; and (6) The design maximum weight is the maximum total weight of the balloon, less the lifting gas or air. [Doc. No. 1437, 29 FR 8258, July 1, 1964, as amended by Amdt. 31-3, 41 FR 55474, Dec. 20, 1976]