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Feb-15-2019 07:16 PM
Feb-15-2019 06:21 PM
aftermath wrote:
Yes, the aerodynamics of a trailer makes a huge difference. That said, you can’t really judge this simply be the shape of the front. There are many factors to include here.
I towed a white box hybrid, 20ft long with a GVW of about 5000 lbs. I changed to an Airsteam, 25 ft long with a GVW of about 7000. I got the same mileage towing with the same truck, 11-12 mpg.
After a couple of years I added a bike rack to the back of the trailer and noticed a drop in mpg. Now I get 10-11 and it doesn’t matter if the bikes are on the back or not! Airstreams are designed to reduce turbulence at the back. Adding the rack sort of messed this thing up.
Good luck with your decision. My thought on all of this is that you should get the trailer you like the most. A mile here or a mile there isn’t going to make you happy or sad.
Feb-15-2019 05:55 PM
Feb-15-2019 05:19 PM
rexlion wrote:troubledwaters wrote:Yep, just what I was going to say.
Seeing as both are basically the same in the back, the frontal area is going to be the key. Max total height x max total width.
Based on alll the towing I have done and reading in rv forums, I will predict that if both have equal frontal area, slope notwithstanding, the mpg with the two will be within1/2 mpg of each other. Likely 11-12 . If you tow a Scamp or Casita, you could get more like 15-16 assuming same speed and conditions. The reason is, the egg trailers sit lower and are narrower and are rounded on all corners, all of which reduce frontal area and also somewhat ease the flow of air behind the trailer for less vacuum.
Feb-15-2019 01:53 PM
troubledwaters wrote:Yep, just what I was going to say.
Seeing as both are basically the same in the back, the frontal area is going to be the key. Max total height x max total width.
Feb-15-2019 12:16 PM