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#1
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Spinner strobing as a "Bird Strike Countermeasure"
The following thread on the Van's Air Force web site was of general enough
interest that I thought it worthwhile to bring it to the attention of other pilots: http://www.vansairforce.com/communit...ad.php?t=24147 Would be quite useful if it really worked. Of course there would still be strikes with inattentive and near-sighted birds. ;-) |
#2
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Spinner strobing as a "Bird Strike Countermeasure"
"Jim Logajan" wrote in message .. . The following thread on the Van's Air Force web site was of general enough interest that I thought it worthwhile to bring it to the attention of other pilots: http://www.vansairforce.com/communit...ad.php?t=24147 Would be quite useful if it really worked. Of course there would still be strikes with inattentive and near-sighted birds. ;-) I wonder about doing the candy stripe spiral on them, or painting the blades different colors... |
#3
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Spinner strobing as a "Bird Strike Countermeasure"
Jim Logajan wrote in
: The following thread on the Van's Air Force web site was of general enough interest that I thought it worthwhile to bring it to the attention of other pilots: http://www.vansairforce.com/communit...ad.php?t=24147 Would be quite useful if it really worked. Of course there would still be strikes with inattentive and near-sighted birds. ;-) Hmm, couldn't hurt! Bertie |
#4
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Spinner strobing as a "Bird Strike Countermeasure"
"Blueskies" wrote in
t: "Jim Logajan" wrote in message .. . The following thread on the Van's Air Force web site was of general enough interest that I thought it worthwhile to bring it to the attention of other pilots: http://www.vansairforce.com/communit...ad.php?t=24147 Would be quite useful if it really worked. Of course there would still be strikes with inattentive and near-sighted birds. ;-) I wonder about doing the candy stripe spiral on them, or painting the blades different colors... No, that woudl cause people to become hypnotised and walk into the prop. Haven't you ever watched Batman? Bertie |
#5
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Spinner strobing as a "Bird Strike Countermeasure"
"Blueskies" wrote in message t... "Jim Logajan" wrote in message .. . The following thread on the Van's Air Force web site was of general enough interest that I thought it worthwhile to bring it to the attention of other pilots: http://www.vansairforce.com/communit...ad.php?t=24147 Would be quite useful if it really worked. Of course there would still be strikes with inattentive and near-sighted birds. ;-) I wonder about doing the candy stripe spiral on them, or painting the blades different colors... There is a design used on the American Airlines (and perhaps others) high bypass engines that is reported to be effective too. Might check it out at airliners.com or something. Considering visibility difference and rotation speed, the design you are testing appears even more visible. My guess is, it will work. |
#6
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Spinner strobing as a "Bird Strike Countermeasure"
"Maxwell" wrote in message ... "Blueskies" wrote in message t... "Jim Logajan" wrote in message .. . The following thread on the Van's Air Force web site was of general enough interest that I thought it worthwhile to bring it to the attention of other pilots: http://www.vansairforce.com/communit...ad.php?t=24147 Would be quite useful if it really worked. Of course there would still be strikes with inattentive and near-sighted birds. ;-) I wonder about doing the candy stripe spiral on them, or painting the blades different colors... There is a design used on the American Airlines (and perhaps others) high bypass engines that is reported to be effective too. Might check it out at airliners.com or something. Considering visibility difference and rotation speed, the design you are testing appears even more visible. My guess is, it will work. http://tinyurl.com/2yjh2c |
#7
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Spinner strobing as a "Bird Strike Countermeasure"
On Sun, 2 Dec 2007 17:02:07 -0600, "Maxwell"
wrote: "Blueskies" wrote in message et... "Jim Logajan" wrote in message .. . The following thread on the Van's Air Force web site was of general enough interest that I thought it worthwhile to bring it to the attention of other pilots: http://www.vansairforce.com/communit...ad.php?t=24147 Would be quite useful if it really worked. Of course there would still be strikes with inattentive and near-sighted birds. ;-) I rate this things right in there with the old ultrasonic deer whistles you put in your car grill. Driving down the road was supposed to put out a noise to scare the deer. Somebody made a small fortune on those before they proved they don't work. I wonder about doing the candy stripe spiral on them, or painting the blades different colors... There is a design used on the American Airlines (and perhaps others) high bypass engines that is reported to be effective too. Might check it out at airliners.com or something. Considering visibility difference and rotation That's used to let people on the ground know if the engine is still turning. An engine coasting to a stop is nearly silent and is silent if you are out on the ramp wearing hearing protection. Roger (K8RI) speed, the design you are testing appears even more visible. My guess is, it will work. |
#8
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Spinner strobing as a "Bird Strike Countermeasure"
On Sun, 02 Dec 2007 22:09:30 -0000, Jim Logajan
wrote: The following thread on the Van's Air Force web site was of general enough interest that I thought it worthwhile to bring it to the attention of other pilots: http://www.vansairforce.com/communit...ad.php?t=24147 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. Roger (K8RI) Would be quite useful if it really worked. Of course there would still be strikes with inattentive and near-sighted birds. ;-) |
#9
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Spinner strobing as a "Bird Strike Countermeasure"
On Dec 2, 5:59 pm, "Roger (K8RI)" wrote:
On Sun, 2 Dec 2007 17:02:07 -0600, "Maxwell" wrote: That's used to let people on the ground know if the engine is still turning. An engine coasting to a stop is nearly silent and is silent if you are out on the ramp wearing hearing protection. Roger (K8RI) Incorrect. The spiral on the fan hub is a bird deterrent measure. It has nothing to do with ground personnel. |
#10
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Spinner strobing as a "Bird Strike Countermeasure"
True, but aren't we talking about 40 cps when the prop RPM is 2400?
-- Best Regards, Mike http://photoshow.comcast.net/mikenoel If any question why we died, tell them, "Because our fathers lied." - Rudyard Kipling. "Roger (K8RI)" wrote in message ... On Sun, 02 Dec 2007 22:09:30 -0000, Jim Logajan wrote: The following thread on the Van's Air Force web site was of general enough interest that I thought it worthwhile to bring it to the attention of other pilots: http://www.vansairforce.com/communit...ad.php?t=24147 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. Roger (K8RI) Would be quite useful if it really worked. Of course there would still be strikes with inattentive and near-sighted birds. ;-) |
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