Laas

Laas may refer to:AerospaceLAAS Local Area Augmentation System
See more at Wikipedia.org...

The Local Area Augmentation System (LAAS) is an all-weather aircraft landing system based on real-time differential correction of the GPS signal. Local reference receivers send data to a central location at the airport. This data is used to formulate a correction message, which is then transmitted to users via a VHF data link. A receiver on an aircraft uses this information to correct GPS signals, which then provides a standard ILS-style display to use while flying a precision approach. The International Civil Aviation Organization (ICAO) calls this type of system a Ground Based Augmentation System (GBAS).
See more at Wikipedia.org...

(n.)
A lace. See Lace.
  

The network of airways serving aircraft operations up to but not including 18,000 feet mean sea level (MSL). (FAA4)

An automated function of the TPX42 that alerts the controller when a Mode C transponder equipped aircraft on an Instrument Flight Rules (IFR) flight plan is below a predetermined minimum safe altitude. If requested by the pilot, Low Altitude Alert System (LAAS) monitoring is also available to Visual Flight Rules (VFR) Mode C transponder equipped aircraft. (FAA4)

Low Altitude Alert System
  

(See LOW ALTITUDE ALERT SYSTEM.)