The following list of sign convention notation is recommended for adoption. Note the sign convention for most quantities is already fixed by the AIAA Recommended Practice [ AIAA92], so this is actually a list of abbreviations for typical sign conventions:
Common DAVE-ML sign convention notation
Acronym | Meaning |
---|---|
+AFT | Positive aft |
+ANR | Positive aircraft nose right |
+ANU | Positive aircraft nose up |
+CWFN | Positive clockwise from north |
+DN | Positive down |
+E | Positive eastward |
+FWD | Positive forward |
+LFT | Positive left |
+N | Positive northward |
+OUT | Positive outward |
+POS | Always positive |
+RCL | Positive right of centerline |
+RT | Positive right |
+RWD | Positive right wing down |
+TED | Positive trailing edge down |
+TEL | Positive trailing edge left |
+THR | Positive beyond threshold |
+UP | Positive up |