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-requirements for re-weighing of aircraft
-equipment lists
- Procedures for determining helicopter mass and balance documentation; procedures for determining helicopter mass and balance documentation
-determine dry operating mass (crew, equipment etc)
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add mass of passengers and cargo (including passengers baggage (standard mass)
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add mass of fuel
- check that applicable maximum gross mass limits are not exceeded (mass within legal limits)
- Effects of overloading: higher take-off and safety speeds, longer take-off and landing distances, lower rate-of-climb, influence on range and endurance (Helicopter), decreased engine-out performance, possible structural damage in extreme cases
c) Centre of Gravity (cg)
- basic of cg calculations (load and balance documentation)
- Datum – explanation of term, location, use in cg calculation
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Moment arm – explanation of term, determination of algebraic signs, use
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Moment – explanation, moment = mass x moment arm
- Expression of distance from Datumline
- Calculation of cg (Helicopter); Calculation of cg longitudinal and lateral (including computer calculations) (Helicopter)
-Cg at empty mass
-determined when helicopter is weighed;
- recorded in helicopter documentation cg at Dry Operating Mass
-movement of cg with addition of fuel, load and Ballast
-practical methods of calculation
- computation method using either mathematical computations or specially designed slide rule
- graph method table method
- intentional relocation of passengers or cargo re remain within cg limits
3. Performance - Helicopters
a) Airworthiness - Requirements
-definitions of terms and speeds used in CARs
b) Definition of Terms
-masses
-velocities: VLE, VLO, VX, VY, Vtoss: (1) VNE ANO Vmini
直升机网 www.helicopter.cn
直升机翻译 www.aviation.cn
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