Rob Chandler

UAV photo coverage calculator. How do I need to fly to get the picture I want?UAV based aerial photographers must know the altitude they need to fly a …

UAV/RC photo coverage calculator. How high do I need to fly to get the picture I want?Our Photo Coverage Calculator is one of those "must-have" utilit …

Get current weather (METAR/TAF/Plain text) summaries for almost any airport in the world using its ICAO designation. Airport weather forecasts aren …

Canadian railway signal interpretations and definitions (based on Canadian Rail Operating Rules - CROR).You can either select your own signal pattern …