The project reported-herein studied some methods for implementation of the man-machine interface of Digital Data Link for Air Traffic Control. An analysis of information transfer requirements indicated that a vocabulary or less than 200 words could yield meaningful messages for all routine ATC transactions. Keyboard configurations suitable for one-handed operation to yield alphanumeric outputs were studied and a ten-key character selection layout based upon sequential keying of the first two letters of the phonetic alphabet was developed.
Tests with experimental subjects indicated that training time was no longer and keying sroficiency at least as good as that achieved with the larger keyset suggested by ARINC.
A second order mnemonic coding scheme based upon key letters of the words of messages was proposed as a means for reducing the number of required keystrokes to generate such messages.
This report documents the complete software system developed for the Experimental Data Link System which was implemented for flight test during the Ai...
Eight two-man crews of FAA/NAFEC test pilots made four runs each in a GAT-2 simulator to evaluate four displays presenting short-message ATC commands ...
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United States Department of Transportation
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