ATPL General Navigation (061) case studies
ATPL General Navigation (061) · Put your knowledge to work in context.
General Navigation (061) is one of the fourteen ground-examination subjects a candidate must pass on the way to an Airline Transport Pilot Licence under the EASA system, and it is also sat by candidates following other national ATPL schemes that use a similar subject list. It is aimed at pilots who already hold, or are working towards, a commercial licence and who need to demonstrate that they can navigate an aircraft to professional standards without relying solely on automation. The ATPL General Navigation (061) case studies are 5 cases and about 2,749 words.
1Mercator scale, chart measurement and the great-circle decision
During a North Atlantic flight-planning exercise you use a Mercator chart whose stated scale is 1:5,000,000 at the equator. You measure 40.0 cm between two waypoints that both lie on the 60°N parallel.
579 words, about 3 min2Deviation card, variation and an unplanned heading change
At the departure airfield the magnetic variation is 7°W. The aircraft's compass swing card gives these deviations: on compass heading 000°, 2°E; on 090°, 1°W; on 180°, 3°E; on 270°, 0°.
534 words, about 3 min3Headwind, fuel reserve and the en-route replan
You are planning a 180 NM leg on track 090°T in an aircraft with TAS 120 kt. The forecast wind is 020°/30 kt.
545 words, about 3 min4Date line, standard time and local mean time at 170°E
A flight departs Tokyo Narita, which keeps UTC+9, at 23:40 local time on 12 March. The planned flight time to Honolulu, which keeps UTC−10, is 9 hours 20 minutes.
490 words, about 2 min5RAIM outage on an RNAV route and an LNAV approach
You are flying an RNAV route with RNP 2 toward an airport that offers an LNAV approach with an RNP 0.3 lateral limit. About 60 NM from destination, the GNSS receiver annunciates that RAIM is unavailable for the next 25 minutes, although baro-aiding is available.
601 words, about 3 min