Well, Dysag, and others: You boys stick with your new fangled toys and I'll just go along with my old needle/ball and airspeed and hopefully, we'll all get to wherever it is we're going safely.
Took off in my 1200 cc VW powered microlight ( LSA to the USA's ) the other day, got airborne, no airspeed - yeah, pitot cover still in place. Not proud of it, but it happened. No airspeed, but not stalling either, so drop the nose a bit to increase the margin, level off, set cruise rpm, turn downwind - and don't touch anything ! Line up, reduce to approach rpm, keep the nose on the numbers - no problem.
( with a stall speed of 35 kts. and 1100 mtrs of smooth tarmac - hardly a challenge, really, once one had got over the initial shock )
Wonder what a FADEC or EICAS or FMS might have done ?
Sorry, slightly off thread I guess !