NACA photographer Ice Reearch being conducted at NACA Ames Aeronautical Laboratory on a Lockheed 12-A, NACA 97; test #4, ice on tell-tale strut in flight
NACA photographer Ice Reearch being conducted at NACA Ames Aeronautical Laboratory on a Lockheed 12-A, NACA 97; test #4, ice on tell-tale strut in flight