Quote:
Originally Posted by Engeu1
I've read that the convergence angle can't go much beyond 16 degrees without breakaway, hence the v.g. idea.
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For prismatic bodies like a truck the angle will be a function of the horizontal length of the ramp, as a percentage of the overall length of the vehicle. There are some graphic drag tables dedicated to this relationship, developed by Buchheim et al., in Hucho. I don't have that with me or I'd give directions.
From my notes, it's on page 153, Figure 4.59
The drag is dependent upon C-Pillar shape, but you wouldn't worry about that.