5x8 design questions

[saywhatthat]

. For the metal, the plan is 1/4 inch 2x2 square tubings for the frame

you have already lost the fight. it dose not have to be mine is bigger than yours. you could stack three full-size cars on that
I like the design you didn't get lazy and just cut one corner off

 

[DesertApprentice]

I noticed they are selling a 50 degree trailer coupler for the A-frame tongue. Does that mean 50 degree is a "preferred" angle for A-frame tongue? Any theory on what is an optimal angle of an A-frame tongue (if such a number exist)? I wonder what is the importance of the angle.
I roughly measured my design is about 54 degrees. Maybe I should consider adjusting it to be 50.
Thanks in advance!

 

[DesertApprentice]

One day into the build, i already got problem, my frame is not true square, seeking advice viewtopic.php?f=50&t=73997&p=1280903#p1280903

 

[twisted lines]

50s for me.

 

[Danimal1]

What jumps out at me is your axle placement. It's too far forward. It needs to be at about the 40/60 point on your frame (excluding the tongue).

Curious Tony, and mind you I’m a newbie here, but on a 10ft. box, is not the correct axle placement 48” from the rear for a 40/60 split? This drawing indicates 44” rear and 76” to the front. The diagram does show a slight offset of the axle to the front of the wheel center and perhaps that’s why you mentioned this? It appears however, according to this sketch that this build already favors a slightly heavier tongue load. I’ve started a new build of my own on a 5x10 and am in the early learning stage here. Sorry, think I figured it out, the sketch you posted was not his build but an example of a good 40/60 split as his is a 5x8 and you posted a 5x10.

Dan

 

[DrewsBrews]

Looks like the diagram was his example of 60/40. Spindles 44" from the back on 120" frame.

Incorrect spindle placement seems to be a common issue on offroad squaredrops for some reason. Leading to insufficient tongue weight and they have to come back later and add heavy tongue box or move more items to the front. Maybe they only think of the frame dimensions, but then add the additional overhang of the galley off the back without taking this into account. Don't know