For instance, if air would be blown downward from an object onto a loadcell, so that the object flies at a given height, the measurement of the air stream over the sensor should be giving the value of the supported weight. Now, is it possible that the measurement of a high frequency loadcell would be lowered in the case where the flying object is now moving at 100 km/h over the sensor?
They might be different. Loadcells are able to measure for in only one direction (Commonly normal forces). However, air flow of an object passing thorough a sensor may induce different force patterns such as normal, shear, or even vortex like forces.
No static weight will be more...as hoovercraft moves there will be aerodynamic forces acting on the body which will reduce the vertical force.
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