AviationBanter - View Single Post - Spinner strobing as a "Bird Strike Countermeasure"

**Airbus** · December 5th 07, 02:10 PM posted to rec.aviation.piloting,rec.aviation.homebuilt

In article ,
says...

Airbus writes:

You're out on a limb there. There has been A LOT of testing on birds'
vision,
and they don't necessarily ask your opinion. . .

Which tests have been done?

Forget it dude - I'm not like you - will not make categorical statements
about subjects I know nothing about. I do not pretend, like you, to know what
studies may have been done. You seem to feel that somùething you do not know
(which you must admit encompasses the near totality of subjects) cannot exist.

Well, I think he made a pretty good "guess" - the GE90-115B tha powers the
777 turns (front fan) at 2550RPM, or 42.5 RPS. He probably didn't ahve to
guess much, as these facts are easily and irrefutably verified.

I obtained the facts from the engine specifications, so no guessing was
required.

I'm so impressed.
It's not the mathematical genius (dividing an RPM number by 60) that impresses
me so much - the real genius is that this guy understood WHY he had to divide
by 60 (to convert minutes to seconds). Subtle - I'm sure few will have the
intellectual presence to grasp it!