[Tzfat]

Nonsense. Every craft flying in the atmosphere is part of the moving airmass. The atmosphere moves WITH the earth's rotation. Otherwise you would be subject to that same "1000 mph" effect yourself (too funny).

Only the case of of a craft outside of the atmosphere has effect like you are describing (ultimately, it must be outside the geosynchronous distance). The only effect on distance for aircraft in the way you describe it is winds at altitude. The "perfect circle" only exists in zero wind - and most certainly NOT in relation to earth's rotation. Like I asked, do you find it easier to walk WITH the earth's rotation? Seriously?

[Smokin' Joe]

Thanks, but you could have saved yourself some typing by reading down thread. Seriously ...or not.

[USAF80]

If you are walking in an aircraft towards the nose your speed would be walk+500MPH. Your apparent speed would be 500MPH+