All sources cited in Subject 030 Flight Performance and Planning — with current direct links (as of May 2026).
EASA — certification and operations
- CS-23 (Certification Specifications for Normal, Utility, Aerobatic and Commuter Aeroplanes) — https://www.easa.europa.eu/en/document-library/certification-specifications
- Easy Access Rules for Air Operations (Part-NCO) — https://www.easa.europa.eu/en/document-library/easy-access-rules
- NCO.OP.125 Fuel scheme; NCO.OP.135 Passenger briefing; NCO.OP.140 Alternates; NCO.OP.105 PIC pre-flight responsibilities
- EASA Practical Skill Test Standards (AMC2 FCL.235.A) — https://www.easa.europa.eu/en/document-library
Manufacturers
- AFM / POH of your aircraft — the authoritative source for performance and CG
- Lycoming Operator's Manuals — https://www.lycoming.com/content/operators-manuals
- Continental Motors Operator's Manuals — https://www.continental.aero/general-aviation/operator-information
FAA handbooks (free)
- FAA-H-8083-25 Pilot's Handbook of Aeronautical Knowledge — https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/phak
- FAA-H-8083-3 Airplane Flying Handbook — https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/airplane_handbook
ICAO
- ICAO Doc 9613 Performance-Based Navigation Manual
- ICAO Doc 7488 Manual of the ICAO Standard Atmosphere
- ICAO Annex 6 Part II International General Aviation, Aeroplanes
- ICAO Annex 4 Aeronautical Charts
Flight computers
- Pooley's CRP-5 Handbook — https://www.pooleys.com
- ASA E6B Manual — https://www.asa2fly.com
Weather and AIS
- DWD aviation weather — https://www.dwd.de/luftfahrt
- DFS AIP Germany — https://aip.dfs.de
- EAD (European AIS Database) — https://www.ead.eurocontrol.int
Specifications
- ASTM D910 (Avgas) — https://www.astm.org