SEWER LINE AND WIND RESISTENCE
I am new at this, I have researched here and can not find the answers. My two questions are: 1. Sewer line connected at camp ground. I have read here not to keep open the valve to the black tank. ...
Forum Discussion
Hi Douglas,
The air flowing over the nose and then over the top of the RV creates a low pressure area over the top front 1/3 to 1/2 of the vehicle. Warts and bumps in that area don't create much, if any, frontal resistance. An modern A/C unit, with its low profile and wedge front and rolled sides has minimal effect in the turbulent air in the back half of the camper's top. The areas of concern would be the frontal area and it's shape (barn door or egg shaped aerodynamic look) AND the bluff shaped rear end. The rear end is really the area of concern as speeds increase. That square back produces a very large negative pressure area behind the RV and that = drag. Faster you go...more drag...more power required...more fuel burn. Some where around 60-65 is the sweet spot where you are balancing drag, frontal resistance, rolling resistance, power, fuel burn, driving time....
The air flowing over the nose and then over the top of the RV creates a low pressure area over the top front 1/3 to 1/2 of the vehicle. Warts and bumps in that area don't create much, if any, frontal resistance. An modern A/C unit, with its low profile and wedge front and rolled sides has minimal effect in the turbulent air in the back half of the camper's top. The areas of concern would be the frontal area and it's shape (barn door or egg shaped aerodynamic look) AND the bluff shaped rear end. The rear end is really the area of concern as speeds increase. That square back produces a very large negative pressure area behind the RV and that = drag. Faster you go...more drag...more power required...more fuel burn. Some where around 60-65 is the sweet spot where you are balancing drag, frontal resistance, rolling resistance, power, fuel burn, driving time....
