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pilotless aircraft
pilotless aircraft Ambiguous: aircraft whose pilot has
departed or aircraft designed to fly unmanned (arch.).
pilot opinion rating Subjective assessment of aircraft
stability and handling, measured according to Cooper
scale.
pilot parachute 1 See pilot canopy.
2 Parachute worn by pilot, eg with seat-type pack or
forming part of ejection seat.
pilot plane Auxiliary surface mounted ahead of main
surface (some definitions add ‘and free to take up position
in line with wind’).
pilot pushing Unlawfully urging aircrew to work excessive
hours.
pilot rating See pilot opinion rating.
Pilot’s Associate Artificial intelligence aid for fighter
pilots combining software, hardware and advanced
pilot/vehicle interfaces (McDonnell Douglas, Texas
Instruments).
pilot’s automatic telephone weather answering
service Weather advisory continuously available by
telephone (US).
pilot’s discretion ATC has given pilot freedom to choose
timing/place/rate of climb or descent.
pilot shop Retail outlet for readily portable items needed
by pilot or enthusiast.
pilot’s notes Handbook providing operating instructions,
helpful advice and all significant images and
numerical data for pilot of particular type or sub-type of
aircraft.
pilot’s preference kit Small bag of allowed personal
effects (NASA).
pilot’s reference eye position Assumed position of eyes of
normal pilot looking ahead (as for landing) in particular
type of aircraft, esp. in designing cockpit.
pilot’s trace Rough overlay to map made by pilot of
reconnaissance aircraft immediately after sortie showing
locations, directions, number and order of sensing runs
together with sensors used on each.
pilot’s view Working section of tunnel as seen by
notional pilot of vehicle under test.
PIM, Pim 1 Previous intended movement, of aircraft
carrier.
2 Processor in memory.
3 Platform interface module (NCCT).
Pimaws Passive IR missile-approach warning system.
PIMPF Programmable intelligent multi-purpose fuze.
PIN, p-i-n Semiconductor p-n junction diode with interleaved
layer of intrinsic semiconductor (from
‘positive-intrinsic-negative’).
pinch hitter Safety pilot, esp. one who is unlicensed, and
frequently the spouse or partner of the PIC (US colloq.).
PIND Particle impact noise detection, test carried out
by acoustically sensing foreign particles in electronic
devices.
PINE, Pine Passive infra-red night equipment.
pinger 1 Acoustic transducer array or other source of
ASW underwater signals.
2 Operating sonobuoy.
3 Crew member in charge of ASW sonics.
pingly ASW helicopter, or a crew-member thereof (UK,
colloq.).
ping-pong snow Loose aggregations similar in size to
table-tennis ball.
ping-pong test Pressure test in which air is used and
PIR
volume is filled with ping-pong balls to reduce stored
energy.
pin joint Joint between structural members where link is
pivot, thus no bending moment can be transmitted and
members of structure entirely pin-jointed must all be in
pure tension or compression.
pink and green Uniform of former USAAF (colloq.).
pinked Cut with zig-zag edge (with pinking shears);
almost universal with fabric coverings.
pinking See knocking, detonation.
pinking shears Shears or scissors which make a zig-zag
cut.
Pinlite Miniature light source of discrete-device type.
pink slip Piece of paper telling employee he/she has been
laid off (US).
pinned Of the end of a beam, fixed in space but able to
pivot in the plane of the beam [not in torsion].
pinpoint 1 Precise fix.
2 Small positively identified ground feature providing
fix.
PINS Pipeline Inspection Notification System, warns
low-flying military of low-flying GA, esp. PI(11) helicopters
and ag-aircraft.
pins 1 Palletized INS.
2 Pipeline inspection notification system (UK).
pin stowage Authorized and clearly visible attachments
for safety pins removed from ejection seat.
pint Non-SI measure of capacity, pt = (UK) 0.568261 l
568,261.0 mm 3 ; US liquid * = 0.473176 l; dry * =
0.550610 l.
pintle Word used in normal sense, as cantilever pivotpin,
in types of gun mount, esp. on underside or in
doorway of helicopters.
PIO 1 Pilot-induced oscillation(s).
2 Processor input/output.
3 Public Information Officer (UK).
PIP 1 Product-improvement programme.
2 Predicted impact point (NASA).
3 Pulse-interval processor.
4 Program initialization parameter.
5 Production investment phase.
pip Small blip on CRT, especially one used (usually as
one of series) as timing mark.
PIPA, Pipa Pulse integrating pendulous accelerometer.
Pipals Pilot-interpreted precision-approach [and]
landing system.
Piperack Advanced jammer for AI radars (RAF 192,
214 Sqns 1944).
pipper Aiming mark, typically 2-mil-diameter dot on
HUD or other sight system.
Pip pin Patented family of connecting pins having one
end headed (often with knurled drum) and other chamfered
and provided with two spring-loaded round-head
plungers 180° apart which keep pin in position; usually
steel and not normally used as permanent fixture.
PIPR Pose-invariant pattern recognition.
PIPS, Pips Pilot internet practice [not practise] service.
PIR 1 Precision instrument runway.
2 Pilot incident report.
3 Property irregularity report, dealing with
loss/damage to baggage and other pax possessions.
4 Priority intelligence requirement(s).
5 Passive IR, see next.
6 Passive IR radiometry.
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