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...Mountain flying contents introduction techniques preparation ridge crossing weather conditions valley terrain entering a preflighting the aircraft turning pilot escape routes briefing your passengers altitude flight plan considerations density and performance getting all information helicopters talk to professionals approach landing know its limitations take off in mountains human wind workload updraughts downdraughts hypoxia turbulence other waves survival equipment rotors additional resources cloud season pointers from changeable lighting common illusions cover photo istock com antonel see caa website for civil aviation rules advisory circulars airworthiness directives forms more safety publications visit govt nz every effort is made ensure this booklet accurate up date at time of publishing but numerous changes can occur with especially regard airspace legislation readers are reminded get appropriate no matter where you fly new zealand some stage will be affected by mountainous that...