In WI the state says no going back until after labor day, but not all the schools follow that rule.
I used to tell people that it was stealth paint, and it actually would be for the laser toting cops.
Glen, it is the shape, the coating and the paint to make the aircraft stealthy. The A-12/SR-71 used a special paint even back then to help reduce radar returns. The F-22 has had issues with the coating not staying on the aircraft when deployed in the mid-east.
This plane shocked everyone involved when it was found to perform significantly better than what they anticipated, loitering at 35k-40k feet with the sensors and radar on and no one knowing it was there:
