Author Retains CopyrightCranston, Amy.2017-02-272022-07-072017-02-272022-07-0720012001https://ir.wgtn.ac.nz/handle/123456789/19791pdfen-NZhttps://www.wgtn.ac.nz/library/about-us/policies-and-strategies/copyright-for-the-researcharchiveAeronautics, Commercial--New Zealand--Safety measures.Aeronautics, Commercial--Law and legislation--New Zealand.Outdoor recreation--New Zealand.Risk assessment.TextAll rights, except those explicitly waived, are held by the Author