f=1/2mv^2
Mass of bird = 5kilos
Velocity = 300km/hr
f=.5(5)300^2 = 225,000J
which is
53,776 Calories
165951 ft pounds force
213 BTU's
Alot any way you slice it.
Bob, who 30 years later, still remembered all that nonesense from A level
physics.
On Mon, Jan 19, 2009 at 1:59 PM, J.C. Hassall <jhassall@blacksburg.net>wrote:
> At 01:47 PM 1/19/2009, Joe Curry wrote:
>
>> You'd think that after all these years, Aircraft engineers would have
>> figured out how to prevent debris from entering the engines.
>>
>> Something like a screen that can somehow clean itslf to keep debris from
>> accumulating and restricting air flow.
>>
>> The revolving clear plastic cover that the F1 car cameras use to keep the
>> lens clear is a possibility.
>>
>> Joe C.
>>
>
> The Brits pioneered a revolving "window" in front of destroyer bridge
> windows ("portals"?, I'm an Army guy) during WWII. The perspex revolved
> fast enough to spin off water. But there's a world of difference between
> destroyer full chat and jet aircraft speeds. ISTR reading that a 10 pound
> bird packs 10K of force at 200 MPH. If I weren't so lazy I'd run the math.
>
> j
>
>
> --
> J.C. Hassall
> Blacksburg VA
> '63 TR4 in autox preparation
> 96% finished, 90% to go _______________________________________________
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