"Friedrich Ostertag" wrote in message I always
thought jets were supposed to land with about 70-80% power on, to be
prepared for a potential go-around? (Because spool-up time from idle
would be prohibitive in that case?)

Perhaps you are confusing RPM with thrust? The correlation is not linear.
Normally the RPM is between 70% to 80% on approach, but the thrust around
20% to 25%. You are correct that normally the engines are somewhat spooled
up to provide adequate acceleration if needed. Hence the reason I carried an
extra 20 knots of airspeed into the flare when using idle thrust.

D.