I have been wondering the same thing. I would have thought the oleo strut would have all the moving parts you would need for such a gauge, lacking only a positi

I have been wondering the same thing. I would have thought the oleo strut would have all the moving parts you would need for such a gauge, lacking only a position sensor (perhaps temerature-compensated.) Not only would you get weight, but also the center of gravity location, which can be deadly if out of limits. https://en.wikipedia.org/wiki/Air_Midwest_Flight_5481 https://en.wikipedia.org/wiki/Air_Midwest_Flight_5481 (Note that in this case, a maintenance error compounded the problem.)