I've been way over due to post some of Dave's stuff.
Summing it up. This ran in the "In the Wind "section preceding the center spread.
I'd been digging Dave's stuff since I first saw those tiny images of posters in the Roth ads. Choppers were mysterious machines so, I used to squint at those ads, trying to figure out just what the hell was going on.
In the Wind On Friday Night. This classic art was in the same issue (8/72), as the Bandit post below. Could be up the coast by Malibu or Ventura.
I like his early works the best. While not as detailed as his later work, there's a feeling and directness to them that just nails it.