gums We had a "yaw string" on the T-33, and that sucker worked up to 400 knots or so. Couldn't see it at night, but in daylight it helped one to learn to coordinate rudder with aileron.
are you shure you have a side window "yaw string" on the T-33?, you had it in the middle!?!, god for control not to much side slide...
but the side window yaw string is not for the side slide he is a good AoA indicator!, and I am shure it is easy possible to enlight it at night..... just open the window like nico and hang it out ....
