Supplement Airplane Maintenance Manual
Cessna 172 with TAE 125-02-99 / -114
AMM-20-02
Rev. No:
Rev. Date:
Chapter:
Issue:
Issue Date:
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Content:
20-AMM-01-02
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06.11.2013
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25.08.2014
01.11 CONVERSION FACTORS
Table 01-1a Conversion Factors - Length
Table 01-2a Conversion Factors - Speed
Table 01-3a Conversion Factors - Pressure
Table 01-4a Conversion Factors - Force
CAUTION: The US units in this manual are only benchmarks! These con-
version factors shall be used in case of any doubt!
Unit [Abbreviation] Conversion Factor Conversion Factor
SI to US / Imperial US / Imperial to SI
Meter [m] [m] / 0.3048 = [ft]
Millimeter [mm] [mm] / 25.4 = [in]
Kilometer [km] [km] / 1.852 = [nm]
[km] / 1.609 = [sm]
Inch [in] [in] x 25.4 = [mm]
Foot [ft] [ft] x 0.3048 = [m]
Nautical mile [nm] [nm] x 1.852 = [km]
Statute mile [sm] [sm] x 1.609 = [km]
Unit [Abbreviation] Conversion Factor Conversion Factor
SI to US / Imperial US / Imperial to SI
Kilometers per hour [km/h] [km/h] / 1.852 = [kts]
[km/h] / 1.609 = [mph]
Meters per second [m/s] [m/s] / 196.85 = [fpm]
Miles per hour [mph] [mph] x 1.609 = [km/h]
Knots [kts] [kts] x 1.852 = [km/h]
Feet per minute [fpm] [fpm] / 196.85 = [m/s]
Unit [Abbreviation] Conversion Factor Conversion Factor
SI to US / Imperial US / Imperial to SI
Bar [bar] [bar] x 14.5038 = [psi]
Hectopascal [hpa]=Millibar[mbar] [hpa] / 33.864 = [inhg]
[mbar] / 33.864 = [inhg]
Pounds per square inch [psi] [psi] / 14.5038 = [bar]
Inches of mercury column [inHg] [inHg] x 33.864 = [hPa]
[inHg] x 33.864 = [mbar]
Unit [Abbreviation] Conversion Factor Conversion Factor
SI to US / Imperial US / Imperial to SI
Newton [N] [N] / 4.448 = [lb]
Decanewton [daN] [daN] / 0.4448 = [lb]
Pound [lb]
[lb] x 4.448 = [N]
[lb] x 0.4448 = [daN]