Flight rules

VFR ( visual flight rules) VMC Visibility 5 km or more Flight level <= F150 ————————— IFR (instrument flight rules) IMC visibility less than 5 km Any flight level as IFR flight is irrespective of weather.

Conditions for RVSM Flight

RVSM Levels are from F290 to F410 ┬áboth inclusive. Requirements to fly RVSM. 1. Airspace should be approved as RVSM airspace i.e. Indian Airspace. 2. Aircraft should be approved as RVSM aircraft and should have the following equipments fully serviceable to fly RVSM Levels. A. Two primary altimetry systems. B. Read more…