TY - GEN AU - Kirby, R S AU - Hause, L G C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1962-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.7227 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1962 TI - Siting factors for VORTAC::part I ER -