shall not be greater than the mass at which the requirements of the appropriate chapter can be complied with for the flight to be undertaken. Allowance may be made for expected reductions in mass as the flight proceeds and for fuel jettisoning.
(b)  
The approved performance data contained in the AFM shall be used to determine compliance with the requirements of the appropriate chapter, supplemented as necessary with other data as prescribed in the relevant chapter. The operator shall specify other data in the operations manual. When applying the factors prescribed in the appropriate chapter, account may be taken of any operational factors already incorporated in the AFM performance data to avoid double application of factors.

(c)  
Due account shall be taken of aeroplane configuration, environmental conditions and the operation of systems that have an adverse effect on performance.

(d)  
For performance purposes, a damp runway, other than a grass runway, may be considered to be dry.

(e)  
The operator shall take account of charting accuracy when assessing the take-off requirements of the applicable chapters. 

Chapter 2 — Performance class A

CAT.POL.A.200 General
(a)  
The approved performance data in the AFM shall be supplemented as necessary with other data if the approved performance data in the AFM is insufficient in respect of items such as:

(1)  
accounting for reasonably expected adverse operating conditions such as take-off and landing on contaminated runways; and

(2)  
consideration of engine failure in all flight phases.

(b)  
For wet and contaminated runways, performance data determined in accordance with applicable standards on certification of large aeroplanes or equivalent shall be used.

(c)  
The use of other data referred to in (a) and equivalent requirements referred to in (b) shall be specified in the operations manual.

CAT.POL.A.205 Take-off
(a)  
The take-off mass shall not exceed the maximum take-off mass specified in the AFM for the pressure altitude and the ambient temperature at the aerodrome of departure.  

(b)  
The following requirements shall be met when determining the maximum permitted take-off mass:

(1)  
the accelerate-stop distance shall not exceed the accelerate-stop distance available (ASDA);

(2)  
the take-off distance shall not exceed the take-off distance available, with a clearway distance not exceeding half of the take-off run available (TORA);

(3)  
the take-off run shall not exceed the TORA;

(4)  
a single value of V1 shall be used for the rejected and continued take-off; and

(5)  
on a wet or contaminated runway, the take-off mass shall not exceed that permitted for a take-off on a dry runway under the same conditions.
　
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本文鏈接地址：Annexes to the draft Commission Regulation on ‘Air Operations - OPS’(95)