ATPL Navigation (Sri Lanka CAA Pilot Licence Examinations) case studies
ATPL Navigation · Put your knowledge to work in context.
The ATPL Navigation examination is one of the theoretical knowledge papers that a candidate must pass to hold an Airline Transport Pilot Licence. It is aimed at pilots working towards a professional licence, whether through an integrated course or a modular route, and it assumes a solid grasp of mathematics, physics and basic instrument work. The subject is examined in five broad areas: general navigation, radio navigation, flight planning and flight monitoring, instruments, and mass and balance. Each area rewards a different style of preparation. The ATPL Navigation case studies are 5 cases and about 2,530 words.
1Drift Correction After a Mid-Leg Fix
You are pilot flying a twin turboprop on a scheduled sector. The planned route is a straight leg of 300 NM on track 090°T.
535 words, about 3 min2RAIM Loss on an RNAV Approach
You are cleared for an RNAV (GNSS) approach to Runway 27 at a regional airport. The aircraft is at 15 NM final, 3,000 ft, groundspeed 140 kt.
537 words, about 3 min3Fuel Decision After an ATC Reroute
You are planning a twin-jet sector with the following fuel figures: taxi 120 kg, trip fuel 2,150 kg, contingency 5% of trip fuel, alternate fuel 540 kg, final reserve 30 min at 750 kg/h, and extra fuel 150 kg. The destination forecast requires an alternate.
495 words, about 2 min4Static Port Blockage During Climb
You are flying an unpressurised twin turboprop climbing through 12,000 ft in icing conditions. The altimeter has stopped at 9,800 ft, the VSI reads zero, and the airspeed indicator has dropped from 160 to 145 KIAS while pitch and power remain unchanged.
432 words, about 2 min5Aft CG Limit After Last-Minute Cargo
A twin turboprop is being loaded for a 2-hour sector. Basic empty mass is 9,200 kg at arm 6.80 m.
531 words, about 3 min