Two low‐frequency (163 kHz), continuous‐wave rocket propagation experiments were performed at Fort Churchill, Manitoba, Canada, in the summer of 1963. The analysis and results of these experiments in terms of electron density profiles are presented. The results are compared with those obtained from an AC conductivity probe flown on the same rockets and, in one instance, with Langmuir probe measurements made on another rocket at about the same time during the solar eclipse of July 20, 1963, at Fort Churchill. The analytical techniques used in the propagation experiments are based on a digital‐computer full‐wave solution of the generalized (includes Sen‐Wyller theory) equations governing plane radio‐wave propagation in the ionosphere.