Originally Posted by
Pilot DAR
Of course, I can do this, as the group of people will be six to ten, not a cabin of a hundred plus, with ear buds in. So similarly, a group of people paying the big bucks for a vintage ride, have a greater than pedestrian interest in the goings on of the plane, and once briefed, the emergency procedures. These people don't rise to the level of "crew", but their involvement exceeds that of "just going to visit grandma a few hundred miles away".
This is where the regulator has a role to define, review, and approve a more detailed than normal passenger briefing. The only reason that the briefing that I, and/or the flight crew of the day, give for the science flying on the DC-3's does not require "approval", is that the regulator knows it's being done correctly to begin with.