Re: Scary trailer... thank goodness it's not mine
Painted steel trailers should be outlawed. Why a boat trailer would not be either galvanized or aluminum is beyond comprehension.
Outlawed??? Steel trailers in salt water are probably not the best, but painted steel trailers in fresh water can last a long long time and do. A neglected trailer of any material is a bad deal and the responsibility for the fitness for road duty is the driver's. I do at least a walk around inspection of any trailer I haul and annually do a more thorough inspection.The trailer in the first post has obviously been neglected and was probably used in salt water.
My previous boat was a 1976 Starcraft and the trailer under it was also a 1976. When I sold the boat 2 years ago the trailer was still in great shape. This boat was a midwest fresh water boat. My father's Starcraft is I believe a 1972 and it's steel trailer is in great shape too. Mine was a c-channel trailer and my fathers is a combination of c-channel and I-beam construction.
I am not a fan of closed section frames for any boat trailer and those are the ones I see the most problems with. A c-channel or I-beam frame steel trailer has the steel totally exposed and visible whereas a closed box often times rusts from the inside out. This is true for an aluminum trailer too. I've seen square tongue aluminum snowmobile trailers with the tongues corroded from the inside out due to the salt spray on the winter roads. The closed box frame can be a bit lighter, but the C-channel/I-beam has the advantage of being able to easily see any problems before they become a problem and also being able to rinse. Having said that, my current boat has a trailer with steel box tube structure and I was worried about it enough to buy a video inspection camera to check the condition of the inside of the frame. It looks good right now, but my plan is to build a new steel C-channel trailer for the boat in the next year or two.
Steel trailers are also easy to repair and finding someone who can do a weld repair on a steel trailer is a snap. Not so much for an aluminum trailer.
The bottom line is that your statement that all steel boat trailers should be outlawed is a bit ridiculous.