Originally Posted by DHeal
Here is something I did: I took one of my similarly-used tires and cut out a cross-section of the tread. This will give you a good idea of how much tread you have to work with and where it is located with respect to the cord. Of course, different tire brands/ratings may have different tread construction characteristics.
Had a guy bring in a -6 once for annual condition inspection with quite a bit of cord showing. I cut the tire to show him how close to "air" he was.
He now changes tires before the cord shows.
He thought "6-ply rating" meant 6 plies. Not so! Many 6-ply rated tires have only 2 plies.
Mel Asberry..DAR since last century
A&P/EAA Tech Counselor/Flight Advisor
Specializing in Amateur-Built and Light-Sport Aircraft
North Texas (8TA5)
RV-6 Flying since 1993, 172hp O-320, 3-Blade Catto (since 2003)
Legend Cub purchased 12/2017
FRIEND of the RV-1
Eagle's Nest Mentor