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Yvon,
It is a 'strobe' effect with the number of frames/sec of the camera vs. the rpm of the prop. Look at old movies that have train (old steam ) and you will find that the wheels reverse direction several times as speed changes.
Bill Schertz
KIS Cruiser #4045
----- Original Message ----- From: "Yvon Cournoyer" <geryvon@videotron.ca>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Monday, September 24, 2007 7:11 PM
Subject: [FlyRotary] VIDEO CLIP OF A TAKE-OFF WITH MY ROTARY POWERED ZENITH 200
A few days ago I made a video clip of a take off of my aircraft, as viewed from the right hand seat.
When viewing the video clip in Windows Media Player, the propeller is turning counterclockwise at take off, once at pattern altitude and the engine is increasing rpm, the propeller slowly begins to turn clockwise...
Why is that?
Can I set my camera so that the propeller will not be visible?
It was fun nevertheless...
Yvon.
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