<VV> <WW> steam brakes

J R Read_HML hmlinc at sbcglobal.net
Thu Jul 7 22:42:15 EDT 2005


Actually, you are likely to be able to push harder than that (your own 
weight) when you consider the leverage effect of pushing your body against 
the seat back.

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Later, JR

----- Original Message ----- 
From: "Ron" <ronh at owt.com>
To: "Padgett" <pp2 at 6007.us>; <virtualvairs at corvair.org>; "James Davis" 
<jld at wk.net>
Sent: Thursday, July 07, 2005 4:02 PM
Subject: Re: <VV> <WW> steam brakes


> If you are capable of standing on one foot, you can then push on the pedal 
> with a force equal to your weight with no more effort.  Do you collapse on 
> one foot?
> RonH
>
> ----- Original Message ----- 
> From: "James Davis" <jld at wk.net>
> To: "Padgett" <pp2 at 6007.us>; <virtualvairs at corvair.org>
> Sent: Thursday, July 07, 2005 12:34 PM
> Subject: Re: <VV> <WW> steam brakes
>
>
>> With an overall mechanical and hydraulic ratio of 8.276:1, on a 1965 
>> Corvair; 1000 psi line pressure would take 121 pounds of pedal pressure. 
>> I doubt you foot is that big :-).
>> Jim Davis
>>
>> At 07:52 PM 7/6/2005, Padgett wrote:
>>
>>>>it would expand
>>>>forcefully and lock up the brake system (INCREASING rather than 
>>>>DECREASING
>>>>the volume occupied by fluids in the close brake system).
>>>
>>>Two things to keep in mind:
>>>1) the pressure when you apply the brakes easily exceeds 1,000 psi
>>>2) while  steam will try to expand when water boils, that is in constant 
>>>pressure. While water and brake fluid are both incompressible (why juice 
>>>brakes work), steam is a compressible gas like air.
>>>
>>>It might be forceful but is probably not forceful enough.
>>>
>>>Now that is purely a swag, anyone know ?
>>>
>>>Padgett
>>>
>>>
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>>
>>
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>
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