Why do the RAF still use QFE?

[Occasional Aviator]

Oh and C-N,

if you're advocating use of a radalt instead of a baralt for routing and instrument approaches I get the feeling you haven't really used a radalt. What radalt height would you put on the chart for the airways from Germany to Italy over the Alps for example?

Green Flash

Knowing the accuracy of the GPS height channel, I'd actually much rather that I and the guy coming the other way were deconflicted by cheap barometric instruments with known and bounded errors!

M609,

RAF pilots

manage just fine

using QNH for approaches too actually.