RAlt = Required Altitude. This is the number you compare to the altimeter (assuming corroct baro is in altimeter). "Height" refers to "above ground elevation" while "Altitude" refers to "above sea level". This is the ICAO phrasology used by airlines around the world.
There is a problem with this infobox, concerning multitargets. To make it easy, it would only show the ReqA relative to T>, and would make it confusing while looking at another multitarget. To make it complicated, we should need Multitarget ReqA, T>ReqA etc. I am lowering this priority for when I have more time.
1. Flight level (ie: altitude corrected to a 1013 mB pressure setting) as used for airspace above 5000 feet (where pressure is available). Should be a trivial calculation.
2. Support for TNP format airspace files (more widely supported, and arguably more logical than OpenAir.
Slight correction. At the moment the transition altitude varies throughout the UK. near us it is 6000ft. There has been a consultation to standardise at 18,000 ft for UK and Europe.
Since 2006, owned and maintained by PostFrontal S.A.S. di Giuliano Golfieri & c. - VAT ID: IT05264240960 THIS WEBSITE ONLY USES FUNCTIONAL COOKIES Privacy & Cookie Policy