the Aviation Dictionary

STANDARD ABBREVIATIONSISYMBOLS
a -temperature
coefficient of
resistance
CO - carbon monoxide
COZ - carbon dioxide
F, - static thrust or gross thrust
F, - net thrust
G, - transconductance
H1. - hydrogen
HCl - hydrochloric acid
k - dielectric constant
Nf- RPM of a free turbine
N, - RPM of a low-pressure
compressor
N2 - RPM of a high-pressure
compressor
P - power
Pb - lead
Pb - bumer pressure
Ptz - inlet pressure
Pt4 - compressor discharge
pressure
PT, - turbine discharge pressure
R - resistance
TtZ - inlet temperature
V1 - takeoff decision speed
V2 - minimum takeoff safety
speed
X, - capacitive reactance
Z - impedance
+ - positive
- - negative
f2- ohm
O - degree
" - inch(es)
' - foot (feet)
amp - ampere
Btu - British thermal unit
C - Celsius
cal - calorie(s)
Cal - large calorie(s)
cm - centimeter
cos - cosine
cu cm - cubic centimeter(s)
cu in - cubic inch(es)
cu ft - cubic foot (feet)
cu m - cubic meter(s)
dB -decibel
deg - degree
ESHP - equivalent shaft
horsepower
f - farad
F - Fahrenheit
ft - foot (feet)
ft Ib - foot-pound
ft Ibs - foot-pounds
g - gram
gal - gallon
HP - horsepower
hr -hour
Hz - hertz
in - inch(es)
in hg - inch(es) of mercury
IPS - inches per second
k - kilo
K - Kelvin
kg - kilogram
kHz - kilohertz
km - kilometer
kM- kilomega
kw - kilowatt
kw-hr - kilowatt hour
1 - liter
lb - pound
Ibs - pounds
m - meter
mb - milibar
mf or pf - microfarad
mHz - millihertz
MHz - megahertz
mi - mile(s)
mm - millimeter
MPH - miles per hour
mv - millivolt
neg - negative
oz - ounce(s)
pf or ppf - picofarad
pos -positive
PPH - pounds per hour
PPM -parts per million
psi - pounds per square inch
PSIA - pounds per square inch
absolute pressure
PSID - pounds per square inch
differential pressure
PSIG - pounds per square inch
gauge
pt -pint
qt - quart
R - Rankine
rev - revolution(s)
RPM - revolutions per minute
sec - second
SHP - shaft horsepower
sin - sine
sq cm - square centimeter(s)
sq in - square inch(es)
sq ft - square foot (feet)
sq m - square meter
sq mi - square mile(s)
sq mil - square mil
tan - tangent
TEHP - thrust equivalent
horsepower
THP - thrust horsepower
U.S. -United States
V - volt
yd -yard
Aircraft Technical Book Company
P.O. Box 270
Tabernash, CO 80478
http://w.ACTechbooks.com