Propane tank transportation safety?

Atomic 4's powered the world for many years.  A great little engine.  Simple to fix, ran forever.  Production started in 1949 and 40,000 were produced with 20,000 still running.  It was the successor to the Utility Four used in WWII.   Mine ran fine.  It was the gasoline in the bilge that spooked me.

Originally posted by offgrid Just one caveat on dual tanks on the tongue, and that's tongue weight. You'll be adding 40 lbs, so be sure you have the headroom for that on your rig. I don't, which is the only reason I haven't done this yet. But as soon as I can get that 130 lbs of lead and sulfuric acid off of there its next on my list.

Yep, its a lever, you have to calculate the moments about the point of rotation, eg, the trailer axle. But nope its not 75%, its 89% for the propane on my 179. The arm (distance to trailer axle) for the hitch on my 179 is 13.1 ft and he propane tank is at 11.7 ft. 11.7/13.1 =0.89 so 40*0.89=35.6 lb.

I think two things happened:

Thanks for all the input, but gee, all I was looking for really was yes or no to the question of safety.

I didn’t know that the gauge was unreliable. Luckily the fridge runs on battery if and when the LPG tank runs dry.