I'm doing New Adventure Comics twice in a row to catch up, so this is the December 1937 issue.
Previously, I would have bet money that Steve Carson was a good example of the Fighter class...but with these new skills on display, maybe he's a better fit for the Detective class, which appeared in The Trophy Case v. 2 no. 6.
This page also gives us a mini-history lesson, revealing that inflatable air mattresses were around in the late '30s.
(Scans courtesy of Comic Book Archives)