vanes
Examples
At these very high vacuums the effect of photon radiation pressure on the vanes can be observed in very sensitive apparatus (see Nichols radiometer ) but this is insufficient to cause rotation.
At high altitude the four B-1A prototypes could achieve up to 2.2 times the speed of sound-assisted by two flexible vanes situated under the nose that help stabilize airflow.
As the rotor orbits, the vanes trap fluid between the rotor and the casing, drawing the fluid through the pump.
Although Lazar saw the aircraft for only a moment through the front of the bus, he described it as being "very large" and having "two huge, square exhausts with vanes in them".
A pair of small vanes mounted near the nose are part of an active vibration damping system that smooths out the otherwise bumpy low-altitude ride.
A wider view of the windmill was rendered on a Leavesden soundstage set with a quarter-scale windmill, complete with rotating vanes, painted sky backdrop and special-effects fire.