Bob Westerman has written a detailed overview of the M-38 pilot models.

From the website, Bob writes:  “NEW: 1/1/2009 In the time since this web-page was published some new photos of the Pilot Models have surfaced. The photos reveal that the pilot models were in a constant state of change as different features were implemented and tested. The new information shows that some previous assumptions are no longer valid. See the MVPA’s magazine Army Motors #126 for the latest information.”

Visit the CJ-3A.Info website to learn more about the M-38 Pilot model history.