cylinder head – Usually removable top of piston engine cylinder containing plugs, inlet/exhaust connections and (except with sleeve valve) valves. cylinder liner – Hard abrasion-resistant lining inserted into cylinder of light alloy or other soft material.
cylinder – One unit of piston engine, or, specif., surrounding cylinder enclosing combustion space and guiding piston. cylinder block – Single unit enclosing row of liquid-cooled in-line piston engine cylinders.
cyclotron – Family of magnetic resonance particle accelerators, many extremely large. cyclotron resonance -Motion of moving charged particle in magnetic field on which is superposed alternating electric field normal to magnetic field.
cyclostrophic wind – As explained above, wind near Equator with strong circular motion, such as a tornado. Cyclotol – Specially formulated high explosive, used alone or with PBX-9500 series, to cause implosion trigger (NW).
That experienced by wind following curved isobars acting in addition to geostrophic force to give resultant wind along isobar according to Buys Ballot’s law. At Equator geostrophic force vanishes, leaving pure cyclostrophic wind.
Cycloconverter – Elegant method of generating constantfrequency a.c., by commutating six phases of h.f. [over 1,600 Hz] to very precise 400 Hz three-phase. cyclogiro – Aerodyne, never successfully achieved, lifted and propelled by pivoted blades rotating about substantially horizontal transverse axis as in paddle steamer.
Repeated application of supposed operating cycle, usually of exceptionally severe nature, under arduous environmental conditions to prove endurance or life of hardware.
Rate at which automatic gun fires, expressed in shots per minute, measured after maximum rate has been attained and not necessarily attainable except for brief periods.
Primary helicopter flight control. Usually governed by stick, similar to aeroplane control column, which in central position causes basic cyclic variation as described above by tilting stationary and rotating stars on rotor hub. Pilot demand is passed through mixing unit and output tilts fixed star in desired direction to superimpose additional cyclic variation causing disc Read more about cyclic-pitch control[…]
In most helicopters main rotor blade pitch progressively increases from minimum (a very small) angle when head-on to airstream (momentarily occupying position of wing) to maximum 180° later (when in position of wing trailing-edge-on to airstream); this makes blade fall on advancing side of rotor and rise on retreating side, effectively decreasing and increasing angle Read more about cyclic pitch[…]