Travel Trailer Aero mods?

[seuadr]

Originally Posted by aerohead

For commercial vehicles, and wind-averaged flow, the 'bulbous' nose has been found superior to all other shapes in subsonic flow.
The greater the radius ( up to, and including that of a semicircle ) the smaller the pressure spikes, and better turbulent boundary layer health when it comes to aft-body mods. Another insurance policy.

good to know!

i've been reading back on K form stuff and kinda thinking on an inflatable tail.

how much pressure needs to be maintained for the shape to stay relatively accurate?

i saw mentions of things like a shop vac or pump for inflating mattresses looks like air mattress pumps can produce like a half PSI of static, which is pretty good - if you have a valve thought you could pump it up and leave it instead of continually pumping assuming that a half PSI would be sufficient and you have no leakage.

just thinking out loud...

[aerohead]

Originally Posted by seuadr

good to know!

i've been reading back on K form stuff and kinda thinking on an inflatable tail.

how much pressure needs to be maintained for the shape to stay relatively accurate?

i saw mentions of things like a shop vac or pump for inflating mattresses looks like air mattress pumps can produce like a half PSI of static, which is pretty good - if you have a valve thought you could pump it up and leave it instead of continually pumping assuming that a half PSI would be sufficient and you have no leakage.

just thinking out loud...

I can't give you a number, although the folks who manufacture inflatable advertising products like the 'hot air balloons ' and 'Gorillas' would know.
I used a Bosch 12-VDC electric blower fan from a wrecked, late model VW Westfalia Campmobile.
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PS
my original proof of concept involved a discarded bean-bag chair.
I emptied out the Styro beads, cut off the blunt end of the envelope and tack- nailed the Naugahyde to a wooden frame which contained the blower fan. A simple umbilical cord ran from the tailgate, under the truck to the engine compartment, with spring-clips which just clamped onto the battery posts.
I invited Fembot-B over to the house to witness the re-invention.
She was NOT impressed! The look she gave me though was precious!

[freebeard]

Without picking out any quotes....

Connecting the two vehicular bodies is problematically fraught.

The connection should be semirigid and accommodate three axes of revolution. The only thing I can think of is those female-designed space suits, based on undergraments. Now I understand how Howard Hughes went down that rabbit hole with Jane Russell's 'needs'.

My recasting of the Bolus design put the door at the rear. And approximated The Holy Template with Armadillo-style banding.



Bluff nose but it loses the taper in elevation.