Yes Agile - it is apparent groundspeed. When you fly in an airliner at 30,000 ft the ground doesn't seem to be moving past you very fast, even though you are doing in excess of 500Kts. Come down to 3 ft and the world is hurtling past at a scary rate.
You can either look down past your toes, if your aircraft has a nice bubble or chin window, or scan out to the side to keep the apparent rate of movement across the ground the same as you get lower by gradually reducing the IAS.
aa777888 -