’m new to the Forum looking over PCs trying to compare several of the PC models on the Ford 450 chassis….Looking to downsize after larger ones. I’m trying to calculate each vehicle’s CCC or the maximum cargo capacity of any vehicle I would purchase. In other words, what can I legally and safely put in the darn thing? But I, like most RV purchaser’s, am stymied by the lack of required numbers to do this.
GVWR= (Gross Vehicle Weight Rating) - the maximum allowable total weight rating of the chassis when the RV is loaded - including the weight of the RV itself plus engine fluids, fuel, water, driver, passengers, cargo, and trailer tongue weight. This is a chassis rating from the chassis manufacturer, not an RV rating.
GCWR (=GCVWR) = (Gross Combined Weight Rating) - GVWR plus any towed weight. GVWR and GCWR are both determined by the RV chassis manufacturer and are the weights used by authorities and insurance companies to judge weight exceedances of an RV or RV + toad after an accident.
What we don’t have:
GVW = (Gross Vehicle Weight) – The total actual weight of a fully equipped and loaded RV with driver, passengers, gas, oil, propane, water, food, clothes, camping and personal gear. GVW should not legally or safely exceed the GVWR. The prospective buyer can easily calculate all the above before buying except the empty dry weight of the unit as delivered.
DW = (Dry Weight) - The weight of the empty RV as delivered without any fluids, water, cargo, or people. This should be the actual weight of the RV when the factory delivers it to the customer after all options have been added. Ideally, each unit would be weighed after fabrication and its unique DW put on the RV nameplate by the RV manufacturer, both for liability protection to the manufacturer and safety of the owner.
CCC = (Cargo Carrying Capacity) – The maximum weight of everything you could add to the RV and still have a GVW under GVWR, i.e., the difference between GVWR and DW. Because of options, this is also unique to each RV that leaves the plant. The manufacturer should ideally also have that stamped on an RV nameplate in the factory.
Discussion on RV weights in the PC Forum to-date have not permitted a prospective owner to compare CCC between models because DW values have only been estimates and we don’t have weights of options This is one reason RV owners often overestimate CCC because DW estimates don’t accurately figure options for each unique rig. A new owner can easily get into serious over-weight situations without accurate Dry Weight data. Owners and prospective buyers both need to know the actual DW of each model as delivered with its options, slides, type of genset, etc. in order to calculate an accurate CCC. An owner can of course, find a truck scale and weigh the rig on leaving the factory, but it would be valuable for owners through the RV’s life to have the unique DW as delivered stamped on a door frame plate.
Phoenix Cruisers could also really help prospective owners by posting the DW for each basic model and added weights of each option on this Forum. Then we could do the gas, propane, water, people, and cargo assumptions and determine accurate CCC for each model we are considering. Given the unique design of PCs, I believe these published numbers would give the company a leg up in the Class B+/small to medium C market, especially for those rigs on 450 the chassis considering the very large CCC of those PCs.
If any of these above definitions don’t fit with others, I stand corrected, but at least my point is valid that owners and prospective owners all need good DW and option weights numbers to calculate our GVW to ensure it will be less than the GVWR.
Thanks a lot….I hope to see lots of you on the road some day in one of these pretty neat road machines.
Mike (northern Idaho)