|Sep25-09, 10:09 AM||#18|
Planes affected by earth's rotational spin
In the wider sense, taking velocity as vector quantity: the rotation-of-Earth effect does have influence on direction of motion.
In the case of the Eötvös effect: if the airship is trimmed for neutral buoyance while flying eastward, and the airshap makes a U-turn, it will have to be retrimmed. If not then the Eötvös effect will make the airship lose altitude, quite a dangerous situation.
When an airship loses altitude gravity is doing work. This illustrates that the Eötvös effect does not exclude change of energy.
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