Hello @yotsuya! Nice to see you! Always good to have a fellow Excelsior fanboy around. You've put together a wonderful website documenting the changes of the model. I'm relieved to hear that our drawings are very similar, as that accuracy is something that has worried me. I look forward to taking a look at what you have - it's entirely possible I've made my nacelles slightly too long. I'll take a look at my source materials. Meanwhile, I hope you'll stick around and participate in the discussion. You clearly know the topic well.