(1) Subject to the provisions of this regulation and the requirements of Part 11 of the Schedule, an aircraft in flight over Saint Lucia shall not, by means external to the aircraft, tow any article, or pick up or raise any person, animal or article, unless the certificate of airworthiness issued or rendered valid in respect of that aircraft under the law of the State in which the aircraft is registered, includes an express provision that it may be used for that purpose.