1. No one is mixing metric and imperial here. All planes use knots, nautical miles, and feet. No one is measuring altitude in meters in one location and then fe

1. No one is mixing metric and imperial here. All planes use knots, nautical miles, and feet. No one is measuring altitude in meters in one location and then feet in another. 2. I guess we should just use metric for every application even when it doesn't make sense to do so then.