The computer models are accurate. I made the Ack liner computer model as a master for a Limited edition 1:20 scale desktop model and for some CFD studies for Mike. The Buddfab computer model links to the master model John and I used for the streamliner body molds.
Eric, just curious .... what are the respective volumes and surface areas?
BTW, I wanted to do a 50cc Yamaguchi liner in the '70s but no sponsors were interested in 3 cubic inches!
The Buddfab accomplishments are technically as [maybe more?] spectacular than the quest for 400 mph!
Woody