On my last 2 trailers one equipment dump, our 14 yr 5er camper, , the 235/80/16 E 's were a joke, nothing but blowouts and poor wear.
Stepped up to 14 ply rated Korean made 235/ 85/16 G 's running at 90 psi, 20 psi below their 110 psi rating all steel ply radials.
Fantastic differance.in wear and no troubles in a dozen or more years and over 100k miles.
I have seen F tires rated for pressures and speed comparable to G , do yourself one better the few $ for the heavier tire run at a lower pressure has given us great service.
Its no brainer