And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
Tuesday, July 4, 2023
When You Need To Be Positive That Your Positive Traction Is Positively Positive : This one is something that really stirs up the Engineers and all the others just scratch their heads. The more you look, the crazier it gets.
Wonder why they didn't just use two drive axles and connect them with a drive shaft? Probably a good reason, maybe they get better articulation this way.
That tread pattern does not look like any U.S. milspec that I am aware of. Would suspect this is of Polish or Czech origins. From what I see there are mounting pads equidistant from the center diff shafts on either side. Need to find out what they went on.
Found it. They are made by Dutch DAF company. Trado suspension for cross country use.and was placed on Ford, GM and other brands in the mid to late 1930's and beyond. Bloody complicated.
I saw something similar on a Dodge Power Wagon at a car show this past weekend. It was totally tricked out with airbags and Wilwood disk brakes. It had a Cummins 12 valve drive train. It was over the top in fit and finish and all of the creature comforts had been transferred over from the donor vehicle.
My tandem axle trailer has the two axles set up with leaf springs connected by a rocker arm arrangement, which leaves them free to flex a lot more independently over terrain. I wonder if this would be the same
This is a walking beam setup, with much more oscillation than your tandem axle trailer would have. If you run your trailer over rough ground you'll see how easy it is to pick a tire up off the ground. That doesn't happen with a true walking beam suspntion.
Walking beam suspensions used to be the most common big truck suspensions back when guys weren't looking for a soft ride. They were great in logging applications, known for their durability and for being 'flat footed' (that is, having an ability to keep 'all four feet on the ground').
My favorite suspension of all time is/was Hendrickson Extended Leaf suspension, which had springs over walking beams. Tough as nails while at the same time not beating a guy to death on rotten old concrete slab freeways.
Elmo You ever drive a truck that had Hendrickson pad suspension? They were pretty popular in the logging industry up here in North Maine. Everything rides on air up here now.
My father drove a DAF YA 328 with this setup, almost impossible to get it stuck. Between the front wheels, and the rear wheels were free wheeling spares on either side, preventing the truck from getting high centered.
Cool. Does anyone know how it attachs to a chassis or frame?
ReplyDeleteI believe I see leaf spring perches at the end of the axle tubes just inside the trunnions.
DeleteWonder why they didn't just use two drive axles and connect them with a drive shaft? Probably a good reason, maybe they get better articulation this way.
ReplyDeleteThat tread pattern does not look like any U.S. milspec that I am aware of.
ReplyDeleteWould suspect this is of Polish or Czech origins. From what I see there are mounting pads equidistant from the center diff shafts on either side. Need to find out what they went on.
Found it. They are made by Dutch DAF company. Trado suspension for cross country use.and was placed on Ford, GM and other brands in the mid to late 1930's and beyond. Bloody complicated.
Yes, but the wheels on one side turn together (no diff between them, just a bevel gear) so a truck with that rig would be able to crawl over a lot.
DeleteI saw something similar on a Dodge Power Wagon at a car show this past weekend. It was totally tricked out with airbags and Wilwood disk brakes. It had a Cummins 12 valve drive train. It was over the top in fit and finish and all of the creature comforts had been transferred over from the donor vehicle.
ReplyDeleteAn exercise in friction loss.
ReplyDeleteMy tandem axle trailer has the two axles set up with leaf springs connected by a rocker arm arrangement, which leaves them free to flex a lot more independently over terrain. I wonder if this would be the same
ReplyDeleteThis is a walking beam setup, with much more oscillation than your tandem axle trailer would have. If you run your trailer over rough ground you'll see how easy it is to pick a tire up off the ground. That doesn't happen with a true walking beam suspntion.
DeleteWalking beam suspensions used to be the most common big truck suspensions back when guys weren't looking for a soft ride. They were great in logging applications, known for their durability and for being 'flat footed' (that is, having an ability to keep 'all four feet on the ground').
My favorite suspension of all time is/was Hendrickson Extended Leaf suspension, which had springs over walking beams. Tough as nails while at the same time not beating a guy to death on rotten old concrete slab freeways.
Elmo
DeleteYou ever drive a truck that had Hendrickson pad suspension?
They were pretty popular in the logging industry up here in North Maine.
Everything rides on air up here now.
My father drove a DAF YA 328 with this setup, almost impossible to get it stuck. Between the front wheels, and the rear wheels were free wheeling spares on either side, preventing the truck from getting high centered.
ReplyDelete