I understand the plate. I think the military rated that with the trailer loaded properly (load in the bed centered
over the axle with a little more weight to the front) Not the same trailer flipped over on top of trailer with said plate.
The M105 has a lot of weight in the front. More weight in front of the axle means more tongue weight.
I edited my post with the corrected addition of the M105 data plate.
With the load distributed directly over the bed, the weights should be within the load limits listed on the data plate.
Now for another item. I don't fully believe the weight on lunette listed on any of the data plates. I can lift 300 lbs off the ground by doing a squat directly over the lift point. I can't lift the tonge of the M105 off the ground by myself. Same goes for the M1061 trailer which I have. Weight on lunette is listed at 445 lbs, which two of us can't budge.
Back to your point, stacking two M105 trailers is not a safe thing to do if you don't have operational brakes on the trailer.
One of these days I'm going to bring a load cell home from work and get actual tonge weights for my fleet of trailers and will post results.