Wow - cool; thanks for the information. So good to know and for the long flight time over the
Atlantic, 8 miles are not so bad. The military Ferranti systems from the 1970ties I restored
and have one working one mile per hour is claimed, although I guess they rarely really
where that good. You also have been pretty right, that there are lot of very different configurations
of panels if one looks at cockpit pictures on the WEB! In a PanAm manual available online I found
the following panels related to the INU kit (Claimed to be a DC10-30):
A mode selector panel:
Than a sensor display panel (with switch to select one out of three sensor units):
And what they call CDU, an unit doing navigation already with waypoints etc.:
So the search for the right panels will go on and I will check, whether the sensor pinout matches
what I have got...