Table of Contents
1.Purpose
2.Applicability
3.References
4.Background
5.TCDS-section33.7(a)
6.EngineRatings-General
7.RatedTakeoffPowerorThrust(unaugmented)-section
33.7(c)(1)(iv)
8.RatedMaximumContinuousPowerorThrust
(unaugmented)-section33.7(c)(1)(ii)
9.RotorcraftEngineOEIRatings
10.AuxiliaryPowerUnit(APU)ModeofOperation-section
33.7(c)(1)(x)
11.OperatingLimitations-General
12.Torque,RotationalSpeed(R.P.M.)andGasTemperaturefor
EachRating-section33.7(c)(1)
13.Fuel,OilandHydraulicFluidSpecification-section33.7,
Paragraphs(c)(2),(c)(3)and(c)(4)
14.TemperatureofOil,FuelandEngineSurface-section33.7,
Paragraphs(c)(5)(i),(c)(5)(iv)and(c)(5)(v)
15.PressureofFuel,OilandHydraulicFluid-section33.7,
Paragraphs(c)(6)(i),(c)(6)(ii)and(c)(6)(iv)
16.AccessoryDriveTorqueandOverhangMoment-section
33.7(c)(7)
17.ComponentLife,andtheNumberofStart-StopStressCycles
ApprovedforEachRotorDiscandSpacer-section33.7,
Paragraphs(c)(8)and(c)(12)
18.FuelandOilFiltration-section33.7,Paragraphs(c)(9)
and(c)(10)
19.BleedAir-section33.7(c)(11)
20.InletAirDistortionattheEngineInlet-section
33.7(c)(13)
21.TransientRotorShaftOverspeed,GasOvertemperature,and
EngineOvertorque-section33.7,Paragraphs(c)(14),
(c)(15),andc(16)
22.Maximumengineovertorqueforturbopropellerand
turboshaftenginesincorporatingfreepowerturbines
-section33.7,Paragraph(c)(17)
23.SelectionofEnginePowerandThrustRatings-section
33.8
APPENDIX1:ExamplesofTCDSAnnotationsforEngineRatings
andOperatingLimitationspersection33.7(c)(1)
APPENDIX2:RevisionHistoryofDefinitionsforTurbine
EngineRatings Abstract
Gives information and guidance on turbine engine compliance under part 33 of Title 14 of the Code of Federal Regulations (14 CFR), specifically section 33.7, Engine ratings and operating limitations, and 33.8, Selection of engine power and thrust ratings.
