Altimeter Clearance Groundspeed 
Air Facts
AUGUST 5, 2024
” Not only that, you just never know what kind of surprise ATC will spring on you when you’re picking up your IFR Clearance, so preparation is everything! Assuming the mighty Warrior can produce a groundspeed of 90 knots, you take that number, divide it by 60, and you’ll end up with 1.5. feet per minute). Multiply 1.5
Air Facts
APRIL 29, 2024
At the current groundspeed, I believed it shouldn’t be of much concern unless the cell began producing lightning. I queried ATC about when to expect the approach clearance and was informed that the Saratoga had appeared to land but the pilot hadn’t contacted ATC to close his IFR flight plan. The IAF was looming closer.
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