A light-up board or maybe fire
2.953 milliseconds = 0.002953 second (rounded)
the length of an airplane depends on the type of an airplane. So we cant reallyanswer your question
The Cessna 406 airplane is 11.89 meters (39.00 ft) long.
Depends on the kind of airplane.
longer then you
6 minutes
Long distances
longer then you
Short
From where.
Because as long as the airplane is nearby, you're receiving two signals from the TV station ... the direct one that you always get, plus another one reflected from the airplane. -- The distances traveled by the two signals are slightly different, and the difference between them keeps changing as the airplane moves. -- When the difference in the two path-lengths is just right so that the peaks of both signals arrive at the same time, they add together in your TV antenna, and for an instant, you get a combined signal that's slightly stronger than usual. -- When the difference in the two path-lengths is just right so that the peaks of one signal arrive together with the valleys of the other one, they cancel together in your TV antenna, and for an instant, you get a combined signal that's almost nothing, just as if the TV signal wasn't there at all. -- As long as the airplane is in a position where the direct signal and the reflection are nearly the same strength, you're watching a TV signal that's rapidly fluttering between extra-strong to very weak to extra-strong to very weak to extra-strong etc.
Try Omniwing.com. It has great instructions for a long-distance glider. Link: http://www.omniwing.com/index.html