A giant phallic shape mapped flight path websites had plane spotters amused - but it turns out, it's actually completely normal.
The penis-like route was flown between 10:30 and 11pm on Wednesday by two light aircraft, both belonging to the Canterbury Areo Club.
It was noticed by internet users and several screenshots, taken from flight-tracking websites, were sent to Newshub.
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But while entertaining, it's nothing new. Newshub rang the club who explained it was an "entry hold" manoeuvre which was being practised.
It's a "regular flying pattern", a spokesperson confirmed.
Airways, a navigation service provider, went back and checked and told Newshub it's been done many times before in the Selwyn training ground.
Newshub.
