This page is a collection of new and efficient RV and Camper concepts as well as ways to make your RV or Camper Van more efficient.
Have you got or tried an idea or design for a more efficient RV or an add-on to increase efficiency? — please send it in…
Brand New Concepts in RVs
A unique design uses a pop-top and a rear pull out to dramatically increase the inside space when the RV is parked vs when its on the road.
The pop-top reduces drag by decreasing frontal area.
Reduce Weight and Drag
The idea is to form a boat tail fairing from a one wheel trailer. It has the potential of reducing vehicle drag while at the same time increasing cargo capacity.
Much of a van’s drag comes from the flat back — air separates at the back and forms a low pressure area that contributes a lot of drag. The idea here is to basically provide a trailer that forms a boat tail fairing that would reduce the drag caused by the flat back.
The Ecomodder site is a gathering place for people who want to do mods to their vehicles that improve fuel efficiency. Hundreds of ideas for drag reduction and efficiency improvement, most of which have actually been built and tested.
Also a good source of expert advice on whether proposed changes will work.
This post from the Ecomodder Forum shows a very nicely done boat tail fairing added to a class C RV.
A first estimate of the improvement was a 30% improvement in fuel economy.
Interesting paper that shows the reduction in drag coefficient for going from a box shaped vehicle to various front end and rear end fairing treatments. Based on actual vehicle tests, an about 75% reduction in drag coefficient was achieved.
I’ve seen several of these offered.
Seems like it could be a good idea. Nice and low drag when driving and pretty roomy when camped.
This paper models the effect of weight reduction on fuel economy for a range of vehicle sizes.
Shows reduction with and without resizing of the vehicle power plant to take advantage of the weight reduction.
A rough rule of thumb for camper van size vehicles: You get about 0.5% gain in mpg per 100 lbs of weight reduction.
Really High MPG RVs
A $100 tent for the Prius allows up to 2 people to sleep in the back of the Prius.
A good video that shows how the tent sets up and how to rearrange the seats and storage for sleeping.
The only 50 mpg camper that I know of.