I have always wondered how a V1 attained roll stability, as it has no ailerons or dihedral. A few years ago, I visited the museum at La Coupole, near St. Omer, and they had a V1 hanging in the reception area....and it had ailerons...strange, I thought. Then I moved around to the side and saw the cockpit...!! I spent quite a while looking at it...and the pulse jet intake immediately above it....thinking about Hanna Reitsch and her test flight in a similar craft.