Section 3
SEC. 3. Subsections (g) and (i) (2b and 2c), section nine, Chapter four of the same Act, are hereby amended to read as follows: "(g) Height over congested, and other areas.—Exclusive of taking off from or landing on an established landing field, airport, or on property designated for that purpose by the owner, and except as otherwise permitted by section fourteen aircraft shall not be flown: "(i) Acrobatic flying. "(2) No person shall acrobatically fly an aircraft— "(b) Over any open-air assembly of persons or below two thousand feet in height over any established civil airway, or within one thousand feet horizontally thereof. "(c) Any acrobatic maneuvers performed over any other place shall be concluded at a height greater than one thousand five hundred feet."