Originally Posted by
Herod
You learn something every day. I trained on the JP in 65/66, and knew about the nose light (although I believed it was steady). I had no idea of the UUPI. I guess no point in overloading the studes brains!!
I don’t know when the UUPI was introduced, but it was around when I was instructing in the early ‘70s. I’m pretty sure the nose light flashed as there could have been potential for confusion with a steady white front and back.
Some versions of the Mirage also transmitted a superimposed tone in the circuit but I don’t know what the purpose of it was.
YS