When a RNP value is described as providing 95% probability of containment, does that literally mean that 95% of the time, an aircraft can be expected remain within this space? (e.g. .1NM)
Does the same apply to RNPx2 providing a 99.9% containment rate?
RNP is a required navigation performance level described by the specification of a numeric value indicating the required navigation accuracy for a specific operation, typically specified laterally in nautical miles - e.g., RNP 1 is a Required Navigation Performance of ± 1 nautical mile (95% Probability). RNP containment is specified as RNP(X) times two (i.e., RNP(X) x 2).
http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgAdvisoryCircular.nsf/1ab39b4ed563b08985256a35006d56af/bbada17da0d0bbd1862569ba006f64d0/$FILE/AC120-28D.pdf
Also, does a horizontal RNP value (e.g. .1NM) refer to .1NM left and .1NM right or .05NM left and .05NM right? (a total of .1NM)
Thanx.