I can't believe I am going to jump back into this argument, but here goes: LT tire are apparently approved for use on all sorts of trailers, because many trailers are fitted with them from various factories. Both RV and equipment trailers. It states in the manual for my Load Trail equipment trailer as well as my Titan trailer that LT tires are suitable. And the previously mentioned Kumho 857 is a commercial, LT tire, that Kumho USA recommends for trailer use.
That's good enough for me. :)
....and hey Jack, good to hear from 'ya again ! :) I'm back home from being on the road for a few months....