The following may be allowed by special exception: The Zoning Board of Adjustment (ZBA) may approve helicopter operations for construction and survey work, where no other practical method is available to do the work, and for special events such as the visit of a dignitary, recreational events such as ski, tennis, equine or golf events, or some other events of a short-term nature. No approval for a special exception under this section shall be granted unless the ZBA makes a finding that the helicopter use will not constitute a nuisance or hazard to the Town residents and their property.