Based on the research and the subsequent Autocad line drawings by Scott Lowther over at Aerospaceprojectsreview.com, Kurt Beswick has illustrated the Northrop LAP (Low Altitude Penetrator) concept ...

It turns out that the algorithm for drawing contours given a regular array of altitude data is actually very simple. We used the algorithm known as ‘Marching Squares’ as described on Wikipedia .

Any good bike ride should have a big climb to push your fitness, and a nice descent for the joy of careening down at high speed. [Glen Akins] has been recording his altitude during his mountain bik… ...

Using the Airspeed Indicator as a Fuel Flow Meter? Mark Phelps · Thursday, January 06, 2011 Thursday, January 06, 2011 ...

Mid-Continent Instruments' 4300 series electric altitude indicator, the Lifesaver Gyro, features a self-contained battery back-up designed to provide one hour of emergency altitude reference ...