Floating Pyramids

Hovering aircraft may be more stable if top-heavy.

Pyramids and Blackhawk 631.jpg
An air-to-air rear view of a UH-60 Black Hawk (Blackhawk) air ambulance helicopter in use during the joint Exercise BRIGHT STAR '83. Visible in the background are the Great Pyramids and the city of Cairo. Joint Service Audiovisual Team

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