That's much too simple. Who'd want to buy something effective, cheap,
light, and simple when we could complicate the daylights out of it?

It needs dual redundant digital signal processors. Ring laser gyros!
Pendulous integrating accelerometers with GPS-based Kalman filter
error bias estimation!. Micromachined piezoelectric pressure
sensors! Adaptive neural network threshold alarms!

If we can't turn this into a multimillion dollar project, we are not
trying hard enough!


A simple implementation would be just two pressure ports on the sides
of the nose connected together with a reed noisemaker. *In a skid or
slip, the pressure difference would set off the reed reminding the
pilot to pay attention to business.