Why don´t these figures match up?

[ACE-OF-ACES]

Originally Posted by Crumpp

Read it Tagert. They used analog instruments and the same things homebuilders use in their garages today.

Ah, I see where you are confused!

Note all I am saying is the document does NOT agree with or support your opinion

Originally Posted by Crumpp

Not quite the sophisiticated testing regiments in use today.

Actully you may want to read the document yourself.. Or my quote above, allow me to re-post it here

AIAA-88-4512:
For airspeed indicator calibration a reciprocal low level course was flown between two accurately located landmarks (still used today).

Pay close att to the text in RED at which point you may want to re-consider or re-word your statment of "Not quite the sophisiticated testing regiments in use today"

Hope that helps! S!