Instrument Rating Exam · Mock exam

An RNP value of 0.3 means:

• A.The aircraft must remain within 0.3 NM of the extended runway centreline at every moment throughout
• B.The maximum allowable cross-track error at any single instant during the whole procedure is 0.3 NM
• C.The navigation system total system error must be ≤0.3 NM for 95% of flight time, with alerting if this cannot be guaranteed
• D.The navigation system provides a guaranteed absolute position accuracy of 0.3 metres at all times