Tireman9 wrote:
kedanie wrote:
Tireman9 wrote:
kedanie wrote:
35 pages of mainly 3 posters flapping their gums and inflating their egos about what experts they are. No real information given out, just insider stuff.
What a waste!!!!!!!!!!
Keith
And your specific question is?
Yes, once again, please explain your formula!!!!!!
Simple Answer
The air volume at a given pressure carries the load.
More complex answer is that the formula L=KxP**.585xSd**1.39x(Dr+Sd)
calculates the air volume of the tire based on its dimensions (Dr is rim dia, Width "Sd" which is calculated considering the Aspect Ratio) and applies the inflation pressure P and a service factor (expected usage) K to get the load capacity L.
Do you want more detail or would that be too much info?
You really don't need to understand the formula as the results are published in the Load & Inflation tables.
The various versions of the load formula have been around for well over 50 years and accepted by vehicle industry and regulatory agencies around the world without them asking for proof of the formula as has been asked in this thread.
The reason I "demanded" the information was that I believed that most of those that were questioning the knowledge and experience of posters who were just "flapping gums" did not know the basic facts needed to provide sound answers to the question of what tire will work on my RV?
Without complete information along with the question, us gum flappers end up wasting our time repeatadly asking for the information needed to provide an informed answer. This is just how engineers and scientists work. We deal with facts.
Some facts make sense (how much load capacity is needed). Some are not really important (what is the address of the factory that made the tire).
As FE has pointed out the enemy is the RV manufacturer who provides no margin of safety when they select the lowest cost component and seldom properly informs the customer of important safety considerations (max speed) as they rush to make the sale for once the unit goes out the door they could care less about the sucker that bought the junk they slapped together and called it a "Quality" built product.
I doubt there is a single RV namufacturer that is ISO certified or that even knows what real Continuous Quality Improvement means.
Want to get the industry to change? Then simply demand that they provide enough tire, wheel and axle load capacity before you buy their product.
Keith if this doesn't provide a simple enough answer then I don't know how to give a more basic reply. You say I am too complex then to simple.
What is your specific question. If you can't explain what exact thing you do not understand then I am finished and you may have to just accept the answer is "because all the tire engineers in the world said so"
