Thanks for your replies so far.
I am familiar with Pitch/attitude settings and constantly refresh my self with the numbers, however having never experienced either a blocked pitot tube or static ports I was after some more expanded views.The QRH merely has just enough rope.
In the case of the Aeroperu, they seemed to be overwhelmed by the array of bells and whistles. The same happened to the Birgenair flight that suffered a similar instrument failure. Then simulator studies were carried out and concluded that the amount of conflicting information took the better of all crews tested.
I admit its easier said than done to comment from the comfort of the armchair but it seems that basic flying skills, partial panel flying was not exercised due to the overwhelming information being thrown at them.
Lets look at what was available in terms of instruments:
Is the VSI on the 75/76 not fed by the IRS's?
Attitude, Heading,Radio Altimeter, stby compass, radar vectoring, what else was available?
How would you prioritise?