Originally Posted by
hueyracer
Upper left corner:
Is this a requirement that a fork always points into the direction of the next restaurant?
Well, I can understand your impression - was my first thought also.
But it represents actually three neddles, which, when everything is ok, look like a fork.
The "handle" of the fork is actually Nr
the "outer spikes" N2 Engine 2
the "inner spike" with a triangle N2 Engine 1
So its actually the the tripple indicator, which gives you clues which engine might be misbehaving and in which way (overspeed / underspeed / failure) ;-)