The GeeBee-R1 in the hands of a competent pilot was a thing to behold. Delmar Benjamin, who had the replica R-1 built, flew the wings off of it. His on the deck knife-edge pass the length of the runway followed up with a knife edge climb-out was something to see! But, this being said, it was all accomplished with horsepower. Of course, pilot skill also had a lot to do with it. I believe that this R-1 replica is now in the hands of the Fantasy of Flight museum in Florida [near Orlando]. Great place to visit, if you ever get the chance. Beautiful build on the R-1, Can't wait for posts.
Later,
Fred Z.