motorhome aerodyamics

[freebeard]

Yes 143mph winds. check scottish weather for far north of scotland (orkney islands) been told we have 2 weeks of 90mph winds.

Well, I've driven Hwy 99 on the Oregon coast in 80mph crosswinds (in the horizontal rain), but at 140mph I'd want somnething like this:

[skyking]

Any improvement in driving experience is a huge success, IMO. Keep it up

[chefdave]

Hi
will take phots when weather breaks. have you heard about the storms bsttering uk. where i live is 90+mph winds. all mods so far are a bit rough but hope to improve them in spring time.

[chefdave]

Hi freebeard
what were you driving in 80mph winds. my dolphin is like a huge brick not the best vehicle for strong winds but more stable than my old 4wd.

[chefdave]

hi have manged to take some photos of mods before wind goes back to silly speed. had to brace myself against a wall to stop camera shake. you cannot see front air dam very well but goes from bull bar mounting points to just below number plate. hopefully in new year my mate who works with stainless steel and aluminum will do a far better job than me. feel free to comment good bad or indifferent.Aero Mods Dolphin Motorhome Photos by chefdave42 | Photobucket

[chefdave]

Aero Mods Dolphin Motorhome Slideshow by chefdave42 | Photobucket. estimated 6% improvment

[Frank Lee]

Put a sail on it and get infinity mpg.

[chefdave]

LOL why did i not think off that

[chefdave]

Rear Spoiler Idea Photo by chefdave42 | Photobucket
hi would this rear spoiler idea work on my dolphin motorhome. am planning to use plastic drain pipe or guttering to form base of spoiler then use gaffer/duct tape to cover up gaps for road testing. would it be better to angle down 12-15 degrees or keep parallel with roof line.
thanks
dave

[freebeard]

Which part are you talking about? The light gray cornice is a decorative appliqué. The stair-stepping abaft the side door will induce separation which may not reattach, transmitting base pressure up to full cross-section.

If they had mimiced the plan taper and rear edge shaping of the Prius, just scaled 100% in Y and 15% in X, that would be awesome. Flat sheet materials with curved, obtuse edges.

As for that drive on the coast—I've been trying to remember. I recall it was around Neskowin in the 80's, and the car had really good windshield wipers. So it wasn't a VW. I also drove that road in a rental Mercury Sable station wagon with 7 miles on it, on ice. I really liked the tires. OTOH, what I was telling people earlier this month: "Ice—the Great Equalizer."