Hey arm', the AS350 we used to have (your local ems crowd) used to read up to -20 KIAS if you extended the search light. Scared the crap out of me one dark night coming out of Palm I, thought the AI had just failed. Apparently it was a know effect (for that airframe) that no one thought I needed to know!
Saw ya ugly mug in the rag the other day, must catch up sometime, drop down at the shed. MM