As part of the Star Annual flight test the aircraft has to be dived to Vne (Never Exceed Speed).
WHY
What does it prove
In a Cub one has to be nearly vertical to get the required 106 mph on the ASI. Loads of fun, not with the aileron cables vibrating and pretty much everything else shaking.
What is the reasoning behind this seemingly bizarre rule?
Has anybody damaged / overstressed their aeroplane complying with this rule?