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Old 22nd August 2005 | 08:16
  #93 (permalink)  
smithgd
 
Joined: Dec 2002
Posts: 112
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From: Hampshire, UK
Question about pressure
Can anyone help me to differenciate between the following?

Absolute Pressure
Gauge Pressure

Now I think they are related by:

Absolute Pressure = Gauge Pressure + Atmospheric Pressure

So at 30,000ft the pressure is 300mb...which pressure are we talking about??

Cheers
smithgd
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