Aeronautical Terms beginning with P

P-RNAV

Precision Area Navigation (European)

Path Definition Error (PDE)

The difference between defined path and desired path at a specific point.

Path Steering Error (PSE) or Flight Technical Error (FTE)

The difference between the estimated position and the abeam point on the system-defined path.

PBN

Performance-Based Navigation

PDE

Path Definition Error

PEE

Position Estimation Error

Performance-Based Navigation (PBN)

RNAV-based on performance requirements for aircraft operating along an ATS route, on an instrument approach procedure (IAP), or in a designated airspace.

PF

Pilot Flying

PFD

Primary Flight Display

PinS

Point in Space

PNF

Pilot-Not-Flying (Pilot Monitoring)

POH

Pilot’s Operating Handbook

POI

Principal Operations Inspector

Position Estimation Error (PEE)

PEE or NSE is the difference between true position and estimated position.

Primary Flight Display (PFD)

A display that provides increased situational awareness to the pilot by replacing the traditional six instruments used for instrument flight with an easy-to-scan display that provides the horizon, airspeed, altitude, Vertical Speed (VS), trend, trim, and rate of turn among other key relevant indications.

Primary Optimum Field of View (FOV).

The vertical and horizontal visual fields relative to the design eye reference point that can be viewed with eye rotation only using foveal or central vision. The values for the horizontal (relative to the normal line of sight) are +/-15 degrees optimum, with +/-35 degrees maximum. The values for the vertical (relative to normal line of sight) are +/-15 degrees optimum, with + 40 degrees up and -20 degrees down maximum (Refer to AC 25-11( ), Electronic Flight Displays). The primary FOV definition should be broad enough to include the center radio stack on 14 CFR part 23 airplanes with “classic”, analog basic ‘T’ instrumentation. For rotorcraft, reference the visibility requirements defined in AC 27-1( ), Certification of Normal Category Rotorcraft, and AC 29-2( ), Certification of Transport Category Rotorcraft.

PSE

Path Steering Error