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conflicting traffic
potentially dangerous future situation. Hence, * alert, *
resolution, * situation.
conflicting traffic With respect to one aircraft, other
traffic at or near same FL heading towards future conflict.
conformal airborne early warning This usually means a
large planar side-looking array radar on either or both
sides of the fuselage.
conformal-array aerial Electronically scanned, fits exterior
surface of vehicle.
conformal-array radar Having plurality of small or light
ES aerials covered by radomes fitting vehicle shape (eg
wing or rotor leading and trailing edges, etc).
conformal gears Having teeth whose mating profiles
conform, both sets having instantaneous centres of
curvature on same side of contact. Usually applied to
W-N gears.
conformal projection Having all angles and distances
correct at any point, but with scale changing with distance
from point.
conformal tank Removable [not necessarily jettisonable]
fuel tank shaped to fit precisely against skin of aircraft.
confusion reflector Designed to reflect strong echo to
confuse radar, proximity fuze, etc. Form of passive ECM.
conical camber 1 Applied to wing leading edge so that,
from root or intermediate station to tip, it is progressively
drooped, centreline of profile following surface of cone
with vertex at root (or at start of ** if this is some distance
along semi-span).
2 The term is also loosely applied to down-curved
wingtips.
conical flow Theory for supersonic flow over thin flat
plate having corner (apex), with flow perpendicular to
rear edge: constant pressure, velocity, density and temperature
along any radius (to infinity) from apex.
conical scanning Common search mode for radar, esp.
AI radar, in which beam is mechanically or electronically
scanned in cone extending ahead of aerial, often using
beam-switching to give az/el data.
conical sleeve Cone-shaped flexible sleeve extending
inwards into gas cell of airship from aperture for line,
providing near gas-tightness with freedom for line to
move axially through envelope.
conic apogee Apogee of satellite if all mass of primary
were at its centre.
conic perigee Perigee of satellite if all mass of primary
were at its centre.
conic sections Perpendicular to axis = circle; parallel to
axis = parabola (eccentricity 1); eccentricity less than 1 =
ellipse; eccentricity greater than 1 = hyperbola. All are
found in trajectories of bodies moving in space.
Conie Comision Nacional de Investigacion de Espacio
(Spain).
coning 1 Tunnel test in which model is rotated whilst
held at constant AOA and sideslip by rotary balance.
2 Capturing hostile aircraft in beams of several searchlights.
coning angle 1 Angle between longitudinal axis of blade
of lifting rotor and tip-path plane (assuming no blade
bending). Symbol β.
2 Incorrectly, sometimes given as average angle
between blade and plane perpendicular to axis of rotation.
3 Upward angular displacement of blades of lifting
rotor of helicopter or autogyro; caused by their lift.
conjugate Many specialised meanings in theory of
constant duty cycle
groups, complex numbers and geometry of curved
surfaces.
conjugate beam Hypothetical beam whose bending
moment assists determination of deflection of real beam.
conjugate foci In optics, interdependent distances
object/lens and lens/image.
conjunction Alignment of two heavenly bodies sharing
same celestial longitude or sidereal hour angle.
connecting rod Joins reciprocating piston to rotary
crank in piston engine, reciprocating pump, etc.
connector Standard mating end-fitting for fluid lines,
multi-core cables, co-ax. cables and similar transmission
hardware, providing automatic coupling of all circuits.
Term preferred for multipin electric *; with fluid systems
prefer “pipe coupling”.
Conops Concept[s] of operations (USN, now all-US).
conplan Contingency plan.
Conradson Standard test apparatus and procedure for
determining carbon residue left after combustion of
hydrocarbon oils, especially lubricating oils.
Con Rep Connective replenishment [carrier] (USN).
conrod Piston-engine connecting rod (colloq.).
consensus Majority vote concept in logic systems, multichannel
redundant systems etc; thus, * can command
landing flare against presumed failed channel.
Consequence assessment tool set Central program used
by Federal and local agencies in responding to domestic
emergencies, now part of ECHO (DoD).
Consol Simple long-range navaid providing PLs (within
range of two * stations, a fix) over N Atlantic. LF/MF
receiver is tuned to identified * station and operator
counts dots and dashes in repeated ‘sweep’ lasting about
30 seconds; PL is then obtained by reading off * chart.
Consolan Consol-type system radiating daisy pattern at
c300 kHz, formerly based at Nantucket (US).
console 1 Control station for major device or system,
normally arranged for seated operator.
2 Control and instrument installation for pupil navigator,
esp. when such * repeated along fuselage (but not
used for pilot station on flight deck).
3 Single bank of controls and/or instruments on flight
deck, eg roof *, left side *.
4 Station for manual input/output interface with large
system, eg air defence, ATC, EDP (1).
5 Tailored box for storage of maps, cameras and other
items, eg ‘The Cessna 210 has centre-aisle * as an option’;
misleading and ambiguous.
consolidation Period between first solo and issue of PPl
or other ab initio licence; hence * exercise, * flight.
consolute Of two or more liquids, miscible in any ratio.
constantan Alloy of copper with 10–55 per cent nickel;
resistivity essentially unchanged over wide range of
temperature.
constant-colour Philosophy for cockpit warning
systems, usually: no caption illuminated = no fault, all
buttons normal; blue = normal-temperature operation;
white = button abnormal, either from mis-select or to
rectify/suppress fault; red or amber = fault.
constant-descending approach Self-explanatory,
adopted to minimise noise over urban areas. Same as
continuous-descent.
constant duty cycle Device or system whose rate of operation
is unvarying despite variable demand; eg DME
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