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#21
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Spinner strobing as a "Bird Strike Countermeasure"
Mxsmanic wrote in
: Maxwell writes: Seems I have heard the 16 cps is all that is required for movies to appear continuous. Motion pictures use 24 ips, repeated once, Blah blah, cut and paste boi does it again. Boring. Bring out a sockpuppet again! That was fuuuun! Bertie |
#22
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Spinner strobing as a "Bird Strike Countermeasure"
Mxsmanic wrote in
: Roger (K8RI) writes: At cruise RPM that effect would be completely lost. There's not a bird or human alive that can discern stroboscopic effects of more than a couple hundred cycles let alone over a 1000. Most of us can't even discern 60 cps. Birds have much better vision than human beings, and I don't believe anyone has tested their ability to discern stroboscopic effects. What using your parakeet as a wing man now in combat sim games? Bertie |
#23
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Spinner strobing as a "Bird Strike Countermeasure"
"Mxsmanic" wrote in message
... And the front fan on a turbofan is turning at around 40-50 revolutions per second, not thousands. My phonograph turns at either 33-1/3 or 45 RPM, which is just as relevant to this conversation as your mention of turbofans. |
#24
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Spinner strobing as a "Bird Strike Countermeasure"
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#25
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Spinner strobing as a "Bird Strike Countermeasure"
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#26
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Spinner strobing as a "Bird Strike Countermeasure"
I wonder about doing the candy stripe spiral on them, or painting the blades different colors... The candy stripe spiral on the spinner was a recognition thing, the Germans started doing that in the summer of '44. The Japanese did something similar thru the war years by painting the inboard leading edge of the wing yellow. Quick recognition by your comrades in a dogfight when head on... This is the first I've heard of the 1/3 and 2/3's strobe effect, I thought it was also for recognition...Maybe I'll try it on my 172... -Ryan |
#27
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Spinner strobing as a "Bird Strike Countermeasure"
U.S. TV is 60 fields/second, European is 50/second. And it takes two interlaced fields to make a frame, therefore US broadcast TV standard (NTSC) is actually only 30 frames per second. Europe's PAL and SECAM standards are both 50 interlaced fields per second, yielding 25 actual frames per second. |
#28
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Spinner strobing as a "Bird Strike Countermeasure"
"Airbus" wrote in message ... In article , says... Hence the reason an aircraft propeller will appear to be revolving slowly backwards at times. Not when being observed directly. That only happens in movies and video due to the interaction between the imaging rate and the rotation rate of the propeller. Wrong again you clueless twit. No, he is right this time. No he isn't. |
#30
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Spinner strobing as a "Bird Strike Countermeasure"
In rec.aviation.piloting Airbus wrote:
In article , says... "Airbus" wrote in message ... In article , says... Hence the reason an aircraft propeller will appear to be revolving slowly backwards at times. Not when being observed directly. That only happens in movies and video due to the interaction between the imaging rate and the rotation rate of the propeller. Wrong again you clueless twit. No, he is right this time. No he isn't. Wellllllllll.............. The world is listening . . . When observed directly under artifical light that "flickers", the most obvious being a strobe light, but there are other types of artificial lights that have flicker. -- Jim Pennino Remove .spam.sux to reply. |
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