Eric has a point - this is an unusually low weight glider/trailer
combination, and thus warrants a different approach.

For the more typical glider trailer with 15m glider, though, I stick
by my suggestion to use ST radials, as they have sidewalls
specifically designed with trailers in mind. Their sidewalls are
stiffer than a passenger (P) or light truck (LT) tire, are more
flexible when cornering and backing, and are designed for extended,
non-stop towing. Note that LT tires are also designed to carry higher
loads than ST tires, so they're going in the wrong direction for a
glider trailer.

-John

On Jan 21, 12:34 am, Eric Greenwell wrote:

Assuming the 950 pounds is right... Unless you are towing this with a
Volkswagen Beetle, it seems unlikely such a light trailer will cause any
problems, regardless of the tires.

The ST inflation chart show a load rating of 850 pounds at 15 psi! This
tire is serious overkill for the weight of your trailer. Even the
smaller ST175/R13 has a 670 pound rating at 15 psi.

If it were my trailer, I'd just put on passenger car tires with a speed
rating about 20 mph higher than I planned to tow, and a 1000 or so pound
load rating, then use the correct pressure for a 600-700 pound load.