Towing a mid-profile vs a full-profile 5er?
Is it easier to haul a mid vs full profile fifth wheel? We never owned one...not even a TT, so we feel intimidated about pulling period, so we want to buy one that would be the easiest for a beginner...
Forum Discussion
The terms/words full profile, mid profile, and low profile are meaningless. It's the actual measurement in inches or feet and inches both inside and out that actually count. Includes the front bedroom. Varies greatly between manufacturers and models of 5th wheels/TT's etc. We have had both high and low profile 5th wheels and could stand straight up and still have a good amount of air over my head on all of them. I'm 5'11" without shoes and about 6' with shoes on and still have plenty of air over my bean in our lowest profile 5th wheel owned.
I know for a fact that the Jayco Eagle HT model rear kitchen 5th wheel called lower profile have more than 6' of height in the front bedroom as we have been in them and sure noticed it. 147" (12'3") total exterior height over the A/C. Not even near hitting my head! Perhaps their idea is the lower profile HT models are more like other's mid profile units. Much of it has to do with the roof line design and where the AC unit is placed.
The full profile Eagle 293RKDS rear kitchen we were in has only a couple inches more height in the front bedroom and it was 155" exterior height over the A/C and had a quite different roofline design. That's 8" more of exterior height but only a couple inches more height in the bedroom walk around areas. However, a big difference in RV front aerodynamics which transfers to higher MPG's pulling the better aerodynamic design HT model.
As an automotive engineer, retired, the rolling resistance is a given constant regardless of speed driven but the air resistance squares itself over and over as speed driven higher than near 50 MPH increases. Also the suction pulling backward that's created behind the flat ended RV rear squares itself also with increasing speeds. This is the major reason why more tow vehicle engine power is required to go faster and of course that takes more fuel to produce the required power. Aerodynamics and it's effects (air flow resistance properties) is ultra important to increased fuel economy and efficiency and windage (frontal a side) effects and stability also.
I know for a fact that the Jayco Eagle HT model rear kitchen 5th wheel called lower profile have more than 6' of height in the front bedroom as we have been in them and sure noticed it. 147" (12'3") total exterior height over the A/C. Not even near hitting my head! Perhaps their idea is the lower profile HT models are more like other's mid profile units. Much of it has to do with the roof line design and where the AC unit is placed.
The full profile Eagle 293RKDS rear kitchen we were in has only a couple inches more height in the front bedroom and it was 155" exterior height over the A/C and had a quite different roofline design. That's 8" more of exterior height but only a couple inches more height in the bedroom walk around areas. However, a big difference in RV front aerodynamics which transfers to higher MPG's pulling the better aerodynamic design HT model.
As an automotive engineer, retired, the rolling resistance is a given constant regardless of speed driven but the air resistance squares itself over and over as speed driven higher than near 50 MPH increases. Also the suction pulling backward that's created behind the flat ended RV rear squares itself also with increasing speeds. This is the major reason why more tow vehicle engine power is required to go faster and of course that takes more fuel to produce the required power. Aerodynamics and it's effects (air flow resistance properties) is ultra important to increased fuel economy and efficiency and windage (frontal a side) effects and stability also.
