Dollytrolley Posted January 6, 2017 Report Share Posted January 6, 2017 Lately I have seemed to have gotten my long johns wrapped around the axle so to speak with my thread about the methods I use to keep my odd RV combonations in some semblance of Weight and Balance. Much of my abused younger days I seemed to bumble into "enterprises" that demanded calculating and maintaining certain Weights and Balance within certain limits so calculating Weight and Balance was pretty much a daily event. Of course one of the things I Thought about retirement was that I would not be anymore Weight and Balance .......well it appears old habits die hard. As retirement allowed longer RV trips with Dolly-the-paint-horse along for the ride it appears that my RV cargo load increased by a few TONS and then a few TONS more..... So.....a odd thing about my retirement is that I seem to have fallen into a Very ODD Hobby of build-it-yourself-Truck-and-Trailer building.... Not to worry, it seems that a lot of RV folks partake of the same Odd Hobby. What gives me pause is how ......lucky....some folks seem to be able to put their thumb up in the air and seem to "guesstimate" where to move the drive axle, hitch, Smart, Drombox, etc .....without any real world calculations of the consequences...... Now I am surely pretty dirty amoung the "unwashed" as Jeff has pointed out and some of the times my "thumb-engineering" I was barely able to escape with my mangy hide.....obviously others have better "thumbs"..... As my odd RV HDT has evolved I have resorted to the old habit of calculating my RV loads mostly to try to offload the Toy hauler loads onto the Freightshaker and then evenly distribute the truck loads on the truck to mostly improve the suspension dynamics. In vehicle design the big brain geeks tend to talk about two fields of study, first is "statics" and the other is "dynamics". For the most part Weight and Balance is a "static" once our RV starts down the road we enter into the complex world of...."dynamics". What tends to make me less bold these days is recalling sitting in the back of the room full of BIG-Brain engineers hashing out the Battle of getting the vehicle "statics" correct enough so that the test vehicle "dynamics" would not kill the "test-lab-rat" (me). Now in my old age for the most part I seem to be all three geeks rolled into one....I am the "statics-geek"...I am the "dynamics-geek"....and I am still a lab-rat...... Maybe this subject is a bit like talking about how often you beat your wife but....sometimes it's best to come clean and see where we are.... Rather than posting the too many numbers in the calculations of a HDT "what-if-study" ......perhaps it might be more informative to just post some examples of....what if we change the truck wheel base from this to this.....or if we move the hitch from this location to this location ....or.....if we move Both the hitch AND axle at the same time. Maybe a few examples could be food for thought.... Drive on.......(static often becomes...dynamic...) Link to comment Share on other sites More sharing options...
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