I think rule 4 should stand as it is.......makes perfect since to me to have at least a maiden flight on an aircraft before it is flown in front of a large crowd that can be present at events........note rule 4 says nothing about a time line
now an event IMHO does not run for 24 hour periods......there is a begiining time and an ending time daily......before or after an events time is open flying......
so John drives across country with a brand new airplane...never flown......arrives at the event at the scheduled start time......sorry he can't fly that brand new airplane until the event ends later in the day...he puts a maiden flight on the airplane..has proven that the airplane can fly and now he's good with that airplane the rest of the event anytime......
same deal except John arrives at 0500 ......the scheduled start time for the event is 0800 sun up at 0600 John has 2 hrs to maiden his airplane...once done John is good to go for the entire event....
who polices this policy...no one....who enforces the policy now...no one.....it's an honor thing.....but I would hate to taxi out a big gasser start my take off roll lift off and have my airplane smash into the crowd..that would have been discovered on a maiden...would not have stopped the crash...but no crowd.....
If you buy a brand new full scale airplane from the factory...I promise it has flights on it and they make the same airplane everyday....
A maiden flight should be required