Indianapolis-Marion County Revised Code § 391-501 Definitions.
Sec. 391-501. - Definitions.
As used in this article, the following terms shall have the meanings ascribed to them in this section:
Aircraft shall mean any contrivance now known, or hereafter invented, used or designed for navigation or for flight in the air; such term shall include all types of airplanes, helicopters and lighter-than-air dirigibles and balloons.
Sound-amplifying equipment shall mean any machine or device for the amplification of music, the human voice or any other noise or sound; such term shall not be construed as including warning devices on authorized emergency aircraft, or any horn, siren or other warning device used only for traffic safety purposes.
(Code 1975, § 18-40)
