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. ;-)

"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...

"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

"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.

"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

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.

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.

wrote in news:5fc94b93-52e4-4ee4-8c59-d46cd92a6702
@s19g2000prg.googlegroups.com:

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.

We use them to hypnotise ground staff into loading the chemicals we spray
out at altitude...


Bertie

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

soaringpilot2 wrote in
:


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...


I asked in my shop and sure enough I was told that our spinners have the
spiral on them for bird avoidance.
We also used to turn our radar on in cavu weather for the same reason, but
now we turn it on for every flight anyway..

Bertie