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

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

Parser for NOTAM (Notice to Airmen) messages in Ruby.

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

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.

Magnetic variation calculation ported from FlightGear

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

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

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