A320, Rule of thumb for gear down: GS*10 + Airport Elevation
Hi all,
Recently I’ve come through more and more this rule of thumb for gear down, used by many Captains on A320. Basically, look at GS multiply by 10 and add airport elevation.
E.g.
GS 180 , Airport elevation 300
1800+300 = 2100
At 2100AAL is the latest point to lower the gear.
Does anybody of you use this rule? I see it’s pretty much good, however I doubt it can really work at aiports higher than sea level...
Opinions?