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QAI
QAI Code: “What is essential traffic regarding my
aircraft”
QAK Code: “Is there risk of collision”
QAL Code: “Are you going to land at –”
QAM 1 Code: “What is latest met.”
2 Quadrature amplitude modulation.
QAN Code: “What is surface wind”
QAO 1 Code: “What is wind at your location at
different FLs”
2 Quality assurance office (DoD).
QAR 1 Quick-access recorder.
2 Quality-assurance representative.
QA/RM Quality assurance and risk management.
Qasar Quality assurance systems analysis review (FAA
from 1971).
QAT Qualified for all three.
QATS Quarterly airline traffic statistics (OAG2).
QAVC Quiescent automatic volume control.
QB Quiet [deceased] Birdmen (US society from 1921).
QBA Code: “What is horizontal visibility at –”
QBAR Dynamic pressure.
QBB Code: “What is amount, type and height above
field of cloudbase”
QBI Code: “Is flight under IFR compulsory” Hence,
QBI conditions = bad weather. Colloquially said to mean
‘quite bloody impossible’.
QC 1 Quality control.
2 Quick change, ie from pax to cargo configuration.
3 Quiet, clean (as prefix).
4 Quality circle (usually plural).
5 Quota count (noise).
6 Quantum computing.
7 See * card.
QCA Qualifications and Curriculum Authority (UK).
QC card Quadrantal correction.
QCDA Quickened climb/dive angle.
QCDP Quality-control development programme.
QCE Quality-control engineer.
QCG Qualifiable Code Generator, embedded graphics
tool.
QCGAT Quiet, clean general-aviation turbofan.
QCI Qualified crewman instructor.
QCIP Quality-control inspection procedure.
QC1 Quota count one [quietest].
QCPSK Quadrature coherent phase-shift keying.
QCS Query control station (ECM).
QCSEE, QC-see Quiet, clean short-haul experimental
engine (NASA).
QC2, QC3 Quota count standards.
QD 1 Quantity distance (explosives).
2 Quick dump.
3 Quick disconnect.
4 Quantum diode.
QDB Quick-disconnect button.
QDG Quick-draw graphics.
QDL Code: “I intend to ask for series of bearings.”
QDM 1 Code: “Will you indicate magnetic heading for
me to steer towards you, with no wind”
2 Quick-donning mask.
QDR 1 Code: “What is my magnetic bearing from
you”
2 Quality-control deficiency report.
3 Quadrennial Defense Review (US).
QE 1 Quality engineering.
QNH
2 Qualified Entities [European nations].
q E At a cut-out corner, ratio of shear stress to that with
cut-out absent.
QEC 1 Quick engine change unit, ie ready-to-install
powerplant.
2 Quadrantal error correction, or corrector.
QEP Quality-enhancement program.
QET Quick engine test.
QFA 1 Meteorological forecast prefix.
2 The Queen’s Flight Assoc., office at RAF Benson.
QFE 1 Quiet, fuel-efficient.
2 Code: “To what should I set my altimeter to obtain
height above your location” Usually requests airfield
pressure [on large airport, at runway threshold]. Thus,
altimeter reads zero on landing there.
QFF Code: “What is present atmospheric pressure
converted to MSL at your location”
QFI Qualified flying instructor.
Q-Flow Quota flow control.
QFU Code: “What is [magnetic] direction/designation
of runway to be used”
QGH Code: “May I land using – procedure” Requests
letdown procedure using radio aids.
QH Queen’s Honorary, followed by third [possibly
fourth] letter denoting Chaplain, Dental Surgeon,
Nursing Sister, Physician, Surgeon, all military appointments
(UK).
QHI Qualified helicopter instructor.
QHNI Qualified helicopter navigation instructor.
QI Quality improvement.
Q/I Quadrature/in-phase.
Qibli Pronounced ‘keebly’, hot, dry, southerly wind (N
Africa).
QinetiQ Supposed PPP created 2001 by renaming
DERA; when US refused to share classified projects with
a PPP, 25% was split off to form DSTL. In fact by 2009
no private shares had been announced, but flotation was
still the eventual objective [office, Farnborough GU14
0LX] (UK).
QIS Quality information system.
Qitars Qualitative intratheatre airlift requirements
study.
QK Quick-flashing.
QL Ethyl-2 (di-isopropylamino) ethylmethylphosphonite,
component of VX nerve gas.
QM 1 Quartermaster; G adds -General, S -Sergeant.
2 Quality management.
3 Quantum mechanics; MA adds material analysis.
QMAC 1 Quarter-orbit magnetic altitude control.
2 Questionnaire on the method of allocating cost[s].
QMDR Quality-monitoring deficiency report.
QML Qualified manufacturers list (Nadcap).
QMMA Quantum-mechanics material analysis.
QMP Quality management plan.
QMS 1 Quarterly manning statistics.
2 Quality-management system.
QMW Code: “What is/are freezing levels”
QN Quiet nacelle.
qn Jet dynamic pressure.
QNE Code: “What will my altimeter read on landing at
– if set to 1013.2 mb” Note: answer is pressure height of
airfield. Used by all aircraft over FL180 in US.
QNH Code: “To what should I set my altimeter to read
your airfield height on arrival” Assuming ISA
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