It is a widely held belief that the Civil Aviation Authority of New Zealand can prosecute with impunity, but the legal position is not that simple.
The Pup could be fitted with lead weights, bolted to the ventral fin. They made the aeroplane enter a spin cleanly.
I have just posted a photo of the Canterbury Aero Club Beagle 121 Pup I flew when instructing there in 1976-1977. It was part of the fleet as an aerobatic aeroplane.
I was a bush pilot for precisely one day, in January 1980. Larry Larrivee operated 3 Maules from Makarora.
One day in 2012 I had the privilege of flying New Zealand’s first, and only, Aeronca 100, a two seat, high wing monoplane with a two-cylinder engine of 36 horsepower.