AbstractAdescriptionis given of a proposed versatile navigator's aid (NAV‐AID) made possible by recent advances in calculator technology. The NAV‐AID is a portable microdigital computer which, when used withThe Nautical Almanac, solves Celestial, Loran and Omega position fixing problems. Additionally, the NAV‐AID contains a Deduced Reckoning computer as well as the capability to perform a variety of standard piloting techniques. Subroutines enable the navigator to calculate useful course line parameters and to handle sextant altitude and Omega skywave corrections. Other course and fix‐related quantities are accessible through an Auxiliary Data Mode. An Inverse Mode allows Celestial, Loran and Omega data to be predicted, and a Calculator Mode aids in external computations. Anticipated specifications ar