local source airtabs/vortex generators?

[AndyL]

Just curious,

Since I'm still waiting on the truck to be fixed, I have some time for RV improvements...

Anyone know a local shop that sells the air tab knockoffs or rice-esque vortex generators for a reasonable price? Can't get them here before I make the BC run if I order online... but not willing to pay 10$+ each - at the local shops I've found that sell them (when your buying nearly 40 - it suddenly matters)

[Aerobat]

http://www.aircraftspruce.com/catalog/appages/airwavevortexgen.php

[ExtraSlow]

what application is this for? You need them on the RV? Is this supposed to help fuel economy?

[AndyL]

You don't need them, but they do help reduce that huge low pressure zone behind the RV - which helps with side winds and passing trucks... help on stability more than MPG...

Leaning towards strakes on the roof and sheetmetal VGs on the sides now...