General resources

General

Rules of the air

Aircraft speeds

Unless for safety reasons, civil aircraft must not be operated at indicated airspeeds
greater than the following:

Airspace classification Speed
Class C 250 kt IAS below 10,000 ft AMSL
Class D 200 kt IAS – at or below 2500 ft AAL within 4 NM of the primary Class D aerodrome
250 kt IAS – in the remaining Class D airspace
Class E 250 kt IAS below 10,000 ft AMSL
Class G 250 kt IAS below 10,000 ft AMSL

 Source: AIP ENR 1.1

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