[Fot] Street Legal

[Richard Taylor]

I think you have not touched on the big numbers. You have to add the
velocity of the turbine blades turning at who-knows-what supersonic speed. 



-----Original Message-----
From: fot-bounces at autox.team.net [mailto:fot-bounces at autox.team.net] On
Behalf Of robert bownes
Sent: Monday, January 19, 2009 2:10 PM
To: J.C. Hassall; FOT
Subject: Re: [Fot] Street Legal

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 at 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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