RCU member "Sound-barrier" from the Netherlands, mailed me a set of Blue Angel plans that came with a MK Blue Angel kit that his dad built many years ago. During my discussions with "Sound-barrier" about the different variants of the Blue Angel he encouraged me to add more information about them to my thread. For the next few days I’m going to post what I’ve learned so far and share various pics that have been provided to me by RCU members following my build. I do not consider myself an expert on the history of the Blue Angel so feel free to add any information you might have.

I’m going to compare the earlier MK design plans that "Sound-barrier" sent me to the later MK design plans that Ron Ellis "RCU grotto2" sent me for my build. The "Sound-barrier" plans more closely match the variant that Yoshioka flew in the World Championships.

I’m going to start with the article that was published in the October 1974 American Aircraft Modeler that was sent to me by "impactiq" on RCU. This article shows the very first Blue Angel variant that was designed and flown by Kato. The design work started in 1963 with the first prototype being flown in 1966. This first variant has the swept wing and stabs, a long nose moment and a pretty short tail moment. Note the wing fences! See image below.