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How The Autogyro Works (It’s In The Name)

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Mr (Chuck) Chumley-Warner Talks Science

OK, sometimes you realise that you know even less than you thought you did and the weekend I extended my personal list by one.

We went to the Branscombe Air – Car show, ostensibly to see the cars and there were some goodies. But the planes stole the show, the Mustang and the Hunter in particular. Afterwards whilst mooching along the airfield en-masse it was time to examine the light aircraft accompanied by a friend (Martine) who had made many of the exhaust systems and at least one of the airframes (well a fair chunk of it).

As I said, the clue’s in the name

Anyway quite a few of these exhaust systems were hooked to Rotax powered Autogyros. Still affected by my Heli flight earlier this year I was a tad surprised to find that the main rotor on an autogyro isn’t actually powered when in flight. It gets better, contrary to popular imaginings this serves to make them rather safe particularly if you lose power.

The video explains it as indeed does this essay.

For now, I feel an burgeoning interest. However I am troubled by the name (Calidus) of the one below. I assume it is named after the Calidus Perregrine

its hunting dive, the stoop,[5] which involves soaring to a great height and then diving steeply at speeds commonly said to be over 320 km/h (200 mph), and hitting one wing of its prey so as not to harm itself on impact (wiki)

Looks great, I want a go.



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