Tire Pressure Discrepancy

[bravo]

I have just replaced a tire on my P2004 Bravo. Same brand-Air Trac, 6 ply. The manufacturer's specs show 50 psi, and their rep emphatically agreed. There are labels on the plane's struts that indicate 23 psi. A call to Tecnam didn't give a definitive statement, but a check of one of their P-92's showed 40 psi. So what am I to believe? What are the pitfalls for incorrect pressure? Same tire brand and type is on the right side. Should it be inflated to match the left tire, whatever the pressure? Thanks in advance for enlightenment.

[timb]

I bought my P2008 in 2013 and had the same 23 psi label on the strut but after two flat tires both while taxiing because of pinched inter-tubes I talked with Tecnam and they agreed the pressure should be 38-40 psi.

I think the tubes were getting pinched when turning because the tire seal was not tight enough against the rim and the tube would get caught.

Since I've kept the tires at 40 psi no more flats. I switched to a higher priced tire at one point but came back to the Air-Trac because they wore as good or better and cost much less.

[Glenn]

Sept 23, 2018 1:23:03 GMT timb said:

I bought my P2008 in 2013 and had the same 23 psi label on the strut but after two flat tires both while taxiing because of pinched inter-tubes I talked with Tecnam and they agreed the pressure should be 38-40 psi.

I think the tubes were getting pinched when turning because the tire seal was not tight enough against the rim and the tube would get caught.

Since I've kept the tires at 40 psi no more flats. I switched to a higher priced tire at one point but came back to the Air-Trac because they wore as good or better and cost much less.

Agreed.  No way is 23 PSI enough.  I run 40 and verify it every morning pre-flight.

[Ed Midgley]

I run 42psi in the mains and 32psi in the nose wheel.
Ed