Originally Posted by
430W
While I admire someone wanting to have a go, they may want to look at the Learfan. That was a winner!
The Learfan whose first test flight took place on "December 32nd" according to the UK government...
(Apparently the contract for the subsidy required the plane to fly by the end of 1980. Technical problems delayed the flight planned for the 31st so when it flew the next day the government decided it flew on the 32nd of December 1980 and therefore would get its subsidy. Sadly it didn't help in the end.)