"spaceflight engineering" acronyms and abbreviations > P

P&E: Propellant and Explosive 
PACS: Pointing and Attitude Control System 
PAD: Propellant Acquisition Device 
PADSIM: Precision Attitude Determination Simulation 
PALS: Precision Approach and Landing System 
PAMELA: Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics 
PATH: Postflight Attitude and Trajectory History 
PBV: Post Boost Vehicle 
PCIL: Pilot-Controlled Instrument Landing 
PCS: Probability of Crew Safety 
PCVL: Pilot-Controlled Visual Landing 
PDA: Propellant Drain Area 
PDP: Postinsertion Deorbit Preparation 
PDS: Pathfinder Demonstration Satellite 
PF: powered flight 
PFC: Performance Flight Certification 
PFC: Postflight Checklist 
PFC: Preliminary Flight Configuration 
PFCF: Payload Flight Control Facility 
PFCS: Primary Flight Control System 
PFL: Propulsion Field Laboratory 
PFP: Powered Flight Program 
PFRT: Preliminary Flight Rating Test 
PFS: Primary Flight Software 
PFS: Primary Flight System 
PFT: Postflight Testing 
PFTA: Payload Flight Test Article 
PhASp: Physics and Astrophysics from Spacelab 
PHP: Planetary Horizontal Platform 
PIO: pilot-induced oscillation 
PL: Postlanding 
PL: Prelaunch 
PL: Propellant Loading 
PLA: Parachute Location Aid 
PLC: Propellant Loading Console 
PLI: Propellant-Level Indicator 
PLIM: Propellant Linear Insulation Matrix 
PLPS: Propellant Loading and Pressurization System 
PLS: Personnel Launch System 
PLS: Postlanding and Safing