Jump to content

Hmm 1


phoenix2013

Recommended Posts

Henry, I'm willing to be your test dummy, as I am in Florida now. I still don't know what it is but I have quite a bit of confidence in any thing you decide is worthwhile. I know you think outside the box but you always seem to consider operating parameters that many manufacturers don't address or even think of, in their products. Now, what the heck is it ?? The suspense is killing me !! Charlie

Link to comment
Share on other sites

10K Pin weight, 50k capacity, ETSuper Max :lol:

 

 

I'm guessing that has something to do with the customer that requested a hitch above the normal capacities of the existing hitch selections!

 

Bingo and bingo, preliminary design concept, those are two 8,000 lb air bags for 16K total. Also thinking a 13.5K + 8K and two 13.5K bags. I thought I might have just one customer, then I got another call, apparently New Horizon built a toyhauler with a 9K pin weight when loaded. Currently pulled with a TrailerSaver (carefully), that poor TrailerSaver runs at 135 psi just to come up to level.

Link to comment
Share on other sites

 

 

 

Bingo and bingo, preliminary design concept, those are two 8,000 lb air bags for 16K total. Also thinking a 13.5K + 8K and two 13.5K bags. I thought I might have just one customer, then I got another call, apparently New Horizon built a toyhauler with a 9K pin weight when loaded. Currently pulled with a TrailerSaver (carefully), that poor TrailerSaver runs at 135 psi just to come up to level.

 

I would love to see photos of the toy hauler! Got any? Or, a link?

Link to comment
Share on other sites

 

I would love to see photos of the toy hauler! Got any? Or, a link?

 

ET%204_zpsefphxg8y.jpg

 

ET%203_zpsrmdrzvyy.jpg

 

Super%20ET%202_zps91mcvgxq.jpg

 

Interesting thing about the truck. The owner originally had a beauty of an MDT hauler, all tricked out, but the thing didn't have enough balls to deal with the NH. He found this HDT, it's old but in superb shape, 15 liter CAT with insanely low miles, they haven't even started to break it in before they sold it, he had it singled and now is waiting for the "real hitch".

Link to comment
Share on other sites

The customer told me but it slipped my mind, it was up there but did not seem to be "too exorbitant" for the ETs, The problem is the pin weight, it's over 9.000 pounds. He did tell New Horizon to put the axles that far back so that the Mini would not offload the pin, but apparently the stuff forward of the axles made a big difference when these went back.

This design would be just right with 16K of airbags, but I'm also trying to figure out how to deal with 12K pin weights. I don't think the march upwards in lengths, weights and pin weight is going to stop.

 

I watched you video, what effect did the straight pin box have on Mark's DRV? I saw the motion after we put the bumps in his ET and he told me it was a great improvement, from what I saw it was still pretty disgusting, I hate to see what it was like before.

Link to comment
Share on other sites

Theoretically yes, but you have to consider other things:

RVs are not tractor trailers, they don't flex, they can't flex with all that stuff hanging from the walls and and on the walls.

They don't carry cargo, wrapped, strapped, on the pallets and lashed to the walls. And not everyone wants to eat from paper plates only and drink from plastic cups only.

They are not built to tractor trailer industry standards expecting to travel fully loaded to to 60K hundreds of thousand of miles for years.

Most of their frames come from Lippert and for those you better have an air hitch to isolate them from the truck.

Link to comment
Share on other sites

Henry, Marc said he was going to follow up with a usage report to you. But basically the change totally resolved his issues. A big "win" on that one.

 

Very%20interresrting_zps8ibwfjug.jpg

 

I would guess that the pin weight hasn't changed much, if at all, maybe Marc can confirm that. I'm thinking that changing the distance towards the trailer axles incresed the hysteresis and introduced more damping. My other guess would be that with the extended pin box things were at resonance and moving it back disturbed the resonance and towards damping.

 

IN THE MEANTIME, DRV is still in this mode.

 

Sg%20Schultz_zpshxsklj5g.jpg

 

Had a discussion with a prospective customer, "do you know the pin weight, GVWR"? Kind of important when specifying a hitch. The sales guy was able to to provide the GVWR "guess" from so many Ks to so many Ks. Pin weight, forget it, not in any brochure, not in any sales info, regional manager didn't know either, finally after a call to the manufacturer a number was produced. Apparently there is only one engineer at the factory who can produce it, when he is found. And naturally for the size and weight of the rig it was quite low (in my not so humble opinion).

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

RVers Online University

campgroundviews.com

Our program provides accurate individual wheel weights for your RV, toad, and tow vehicle, and will help you trim the pounds if you need to.

RV Cable Grip

All the water you need...No matter where you go

Country Thunder Iowa

Nomad Internet

Rv Share

Dish For My RV.

RV Air.

Find out more or sign up for Escapees RV'ers Bootcamp.

Advertise your product or service here.

The Rvers- Now Streaming

RVTravel.com Logo



×
×
  • Create New...