We always put the drivers side facing the wind so that we are not fighting it when we go in and out of the barn doors. Not sure what max wind speed is but we have had no problems with 20-30 mph sustained with higher gusts.
Read detailed trip reports, see photos and videos on my travel blog, luinil.com.
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Current van: 2002 Ford E350 extended body camper with Colorado Camper Van pop top and Agile Offroad 4WD conversion.