[Fot] Street Legal

[Bill Babcock]

Actually big turbofan engines can usually digest birds quite nicely,  
The first stage fan blends them into a nice paste and slings them to  
the outside of the fan disk and out the bypass ports. It takes a lot  
of birds to have some get into the compressor blades, and even then  
they are goo. It's just that if you get enough goo it overwhelms the  
engine. Must have been a lot of geese.

There isn't any practical way to screen a turbofan, the air intake  
rate at take off is ginormous. Air velocity at the entry point of the  
fan is 10,000 meters/sec or more. Exit velocity of a GE turbofan is  
115-130,000 meters/sec.

On Jan 19, 2009, at 8:47 AM, 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.
>
> -----Original Message-----
> From: fot-bounces at autox.team.net [mailto:fot-bounces at autox.team.net]  
> On
> Behalf Of BillDentin at aol.com
> Sent: Monday, January 19, 2009 11:41 AM
> To: Lunkercars at earthlink.net; tarch at bellsouth.net
> Cc: fot at autox.team.net
> Subject: Re: [Fot] Street Legal
>
> In a message dated 01/19/2009 12:37:19 PM Central Standard Time,
> Lunkercars at earthlink.net writes:
>
>
>> If you ever saw Bob Hoover fly his aerobatic air show in his Twin
>>> Commander > with both engines feathered, you'll get the picture.
>>
> That's sure a word picture these days.  Last week an airplane got both
> engines feathered and ended up in the Hudson.
>
> Bill (Damdinger)
>
>
>
>
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Bill Babcock
Babcock & Jenkins
Billb at bnj.com
503.936.7660
www.bnj.com

Editor
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