Build XML descriptions of aeronautical infrastructure either as AIXM 4.5 (Aeronautical Information Exchange Model) or OFMX 1 (Open FlightMaps eXchange).

A software model in Ruby for the greenhouse gas emissions of a flight

Parse public AIP (Aeronautical Information Publication) and convert the data to either AIXM (Aeronautical Information Exchange Model) or OFMX (Open FlightMaps eXchange).

Parser for NOTAM (Notice to Air Missions) messages in Ruby.

OGN (glidernet.org) broadcasts aircraft positions as APRS/APRS-IS messages. This gem hooks into this stream of data and provides the necessary classes to parse the raw message strings into meaningful objects.

Convert files in the avionics flight recorder data format (IGC) to the keyhole markup language (KML) for display in applications such as Google Earth.

Calculations for AIRAC (Aeronautical Information Regulation And Control) cycles.

This gem provides set of classes and a CLI for obtaining information like NOTAM, METAR and TAF

Magnetic variation calculation ported from FlightGear