Vertical Speed Indicator
A Vertical Speed Indicator (VSI), also known as a Rate of Climb and Descent Indicator (RCDI) is an instrument which indicates the rate of climb or descent of an aircraft.…
Air Data Systems
We tested different DIY designs for Air Data Systems components. It’s a work in progress, with differents levels of completion (Send feedback here). Developed units can be considered to be general…
What is air data?
Air data is a measurement of the air mass surrounding an airplane. The two physical characteristics measured are pressure and temperature. Air data is acquired through various sensors on the…
Satellite Navigation Systems
Satellite navigation systems have become so widespread that they are almost taken for granted. However, the fact that they are so useful is leading to an expansion of available systems.…
Inertial Sensors
Inertial sensors are sensors based on inertia and relevant measuring principles. These range from Micro Electro Mechanical Systems (MEMS) inertial sensors, measuring only few mm, up to ring laser gyroscopes…
What is an inertial navigation system?
Inertial navigation systems come in all shapes and sizes. One thing they have in common though is their use of multiple inertial sensors, and some form of central processing unit…
Omega
Omega was a very long-range Very Low Frequency (VLF) navigation system and the first navigation system providing true global coverage. The system worked by generating hyperbolic lines of position (LOP) by means…
Decca Navigator System
The Decca Navigator System was a hyperbolic radio navigation system which allowed ships and aircraft to determine their position by receiving radio signals from fixed navigational beacons. The system used phase comparison of two low frequency signals…
Aircraft Instrument Landing Systems (ILS)
An ILS is used to land an aircraft when visibility is poor. This radio navigation system guides the aircraft down a slope to the touch down area on the runway.…
Long Range Aid to Navigation System (LORAN) – Aircraft Navigation
Long range aid to navigation system (LORAN) is a type of RNAV that is no longer available in the United States. It was developed during World War II, and the…


