> if the airspeed indicator is accurate, and you know you're heading, all you need is an accurate clock to determine absolute position Airspeed gives speed relative to the air, not the ground. To compute ground speed,…
> if the airspeed indicator is accurate, and you know you're heading, all you need is an accurate clock to determine absolute position Airspeed gives speed relative to the air, not the ground. To compute ground speed,…