Abbreviations and Acronyms
navigation - What are the differences between an OBS, a CDI, a Heading indicator, and an HSI? - Aviation Stack Exchange
Aviation Abbreviations - ICAO, BCAS, DGCA, IATA, FAA, AERA, AAI, AI, ACI, ATC, ATM, ATS, IAF, IATA | Edvnce
OBS - "Observation" by AcronymsAndSlang.com
& Abbreviation Guide - Aviation Today
AWC - Graphical Forecasts for Aviation
What is OBS in Aviation? - Aero Corner
Aviation Abbreviations & Contractions, Instrument Rating, Darren Smith, Flight Instructor, CFI Homepage
OBS - Observe
Aviation Acronyms & Abbreviations for Pilots | FlightDeckFriend.com
What is OBS in Aviation? - Aero Corner
Dictionary of Aviation
& Abbreviation Guide - Aviation Today
Training Manual A 319 / 320 / 321: ATA 00 Abbreviation List | PDF | Aerospace | Aviation
Airspace, Clouds, You Name it! - Blonds In Aviation
Technique - AOPA
Meteorology
6/17/21 AIM Abbreviations/Acronyms Appendix 3−3
Acronym
Aerospace Acronym and Abbreviation Guide - Avionics International
What is OBS in aviation? - Quora
