Cessna 172 R tire pressure?

Flight_Watch

Flight_Watch

New Member
Does anyone know what the tire pressure is for a Cessna 172 R model or where I can find it?

I have searched the POH high and low and don't see anything about it.

Thanks for any help.
 
I was told a good timer pressure is 1% of the total weight, in pounds. So, if aircraft weighs 3500 pounds, then 35 PSI is a good tire pressure.

I have not seen anything in writing to confirm this, just my instructor commenting on it when the tires were low on an arrow.
 
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On the side of the tire?

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Just a note of caution, the PSI on the side of the tire is the max allowed for that tire. A lower pressure may be recomended for best performance by the A/C manufacturer.

Same rule goes for cars.
 
[ QUOTE ]
Does anyone know what the tire pressure is for a Cessna 172 R model or where I can find it?

I have searched the POH high and low and don't see anything about it.

Thanks for any help.

[/ QUOTE ]It should be in the POH. Don't look in the Systems section; look in the Section 8, Handling Servicing and Maintenance.
 
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I have searched the POH high and low and don't see anything about it.

[/ QUOTE ]Page 8-21 - Landing Gear

Nose wheel - 34 PSI
Main wheels - 28 PSI
Nose gear strut - 45 PSI (unloaded)
 
Just for fun, the minimum speed for dynamic hydroplaning in standing water is nine times the square root of the tire pressure (knots and PSI). E.g., 28 PSI -> 48 knots ground speed.
 
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Just for fun, the minimum speed for dynamic hydroplaning in standing water is nine times the square root of the tire pressure (knots and PSI). E.g., 28 PSI -> 48 knots ground speed.

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I could have sworn that was 8.7 times the square root . . .

I could be wrong, though!!
grin.gif
 
Well, after browsing around after I posted (post first, research later!). I found an automotive site that claimed 10.35. There were probably lots of assumptions about tread pattern, runway contamination, how many geese are flying overhead at the time, etc.

Or maybe somebody got funding to study the matter, but instead made-up a number and threw a rockin' party with the money.
grin.gif
 
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Or maybe somebody got funding to study the matter, but instead made-up a number and threw a rockin' party with the money.
grin.gif


[/ QUOTE ]

Yeah...that was me...
nana2.gif
 
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