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Aircraft Operations. Volume II - Construction of Visual and Instrument ...

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I-4-1-4 Procedures — <strong>Aircraft</strong> <strong>Operations</strong> — <strong>Volume</strong> <strong>II</strong><br />

23/11/06<br />

1.9 DESCENT GRADIENTS<br />

Throughout the document, optimum <strong>and</strong> maximum descent gradients are specified. The optimum is the operationally<br />

preferred descent gradient. This should only be exceeded where alternative means <strong>of</strong> satisfying obstacle clearance<br />

requirements are impracticable. The maximum gradient shall not be exceeded. (See also Section 4, Chapter 9.)<br />

Table I-4-1-1. Speeds (IAS) for procedure calculations in kilometres per hour (km/h)<br />

<strong>Aircraft</strong> category Vat<br />

Range <strong>of</strong><br />

speeds for<br />

initial approach<br />

Range <strong>of</strong><br />

final approach<br />

speeds<br />

Max speeds<br />

for visual<br />

manoeuvring<br />

(circling)<br />

Max speeds for<br />

missed approach<br />

Intermediate Final<br />

A

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