FTDK
- not sure about point 6 though.
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Ovation -
CAR 166 (2) (g) before landing, descend in a straight line starting at least 500 metres from the threshold of the landing runway and at a distance common to the ordinary course of navigation for the aircraft type;
CAR 166 (3) (e) the pilot gives way to any other aircraft established and flying in the circuit pattern at the aerodrome.
You may be able to argue that he broke the rules if he/she was not established on final by 500m from the threshold, but CAR 166 (3) is very specific that to fly a straight in approach you must give way to ALL aircraft in the circuit.
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Flying three legs of the circuit concentrates more aircraft into a smaller volume of airspace by increasing the amount of time an aircraft spends in that airspace.
Greater traffic density = increased risk of collision.
Greater predictability = decreased risk of collision.
Concise, accurate, appropriate broadcasts = decreased risk of collision.