Isn't the idea similar to that already used by the user defined Decision Height gauges? If so it would allow for the geographical variations in TH, of which Bones spake.
Gerry Winskill FrankTurley@xxxxxxx wrote:
In a message dated 14/11/2006 10:20:40 GMT Standard Time, bones@xxxxxxx writes:Transition Level won't be a variable because it varies from country to country and can vary within areas within a country (like the UK).If you are flying any posh aircraft with built in altitude alert -the one that dings at you as you approach 1000ft to go to target altitude - a crafty dodge is to dial in 1000ft above TA rather than your cleared level. When it dongs reset altimeters to 1013.25 and dial in your cleared level.bonesEr, if it were a variable then presumably one could change it, unlike the constant it appears to be? My planned gauge would warn the pilot as TL was hit in either direction, up or down. Frank T.