Maybe the legs were to provide support because when it was tipped the entire load would go on the back axle and cause mischief to the suspension. Much the same as some beavertails and machinery trailers have drop down support legs at the back for use while loading. A WAG.
CORRECT LANG, as the Swishman says "you can have a beer from your very fridge
I thought I had said that earlier
The reason the trailer is the way it is ?
We had these weird bridge laws for loading so to load to the maximum the the
load had to be spread out over a long distance
And this was one of the many ways that were devised to over come the issue and stay fully with in the law
Kirky that used to be on here got very angry with me once about this photo because he couldn't quite cotton on to the reason why
The reason is simple for the legs, its like tipping a trailer with the load stuck up the front of the tipper and when the trailer reaches a certain height the load slides in hurry and makes the trailer very unstable and likely to to tip over
Winding the legs down means the trailer cant rock so stability is restored and it is safe again
Some people refuse to see this for some reason
Anyway I have tried to explain the reasons why to the best of my ability
Paul