Frontal Sq'
Is there a formula for calculating it for a curved front TT? I called Coachmen to get the frontal sq' of the 192RBS during my researching and they don't have any idea. All they could tell me is "if ...
Forum Discussion
LVJJJ wrote:
You're all worried about the wrong end of the TT. If the TT is a flatback the vacuum created by them acutally tries to suck the TT backwards, so, as I did, install an air deflector to direct the air flow down the back of the TT in order to help it detach itself from the air stream, that's where the major drag is.
Some TT's like the Trail Lites and Cruisers are rounded down at the back top, and the bottom is angled in so air coming off of the smooth bottom is deflected up at an angle helping it break out of the air stream.
Airplanes are big in the front (although streamlined) and taper to a point for a reason, even though it seems like it would be better if the point was in front for no frontal air pressure.
My old Trail Lite was like that. However, I have noticed no difference in mpg or towing between it and the Skyline Dart, which is all right angles in the rear. But the front of the Dart is rounded and the Trail Lite was flat. Maybe a trade off between the two?
