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 |