MiG-21FL Service Manual – Book I Airframe & Power Plant PDF
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Declassified English-language MiG-21FL Service Manual — Book I: Airframe & Power Plant. Covers aircraft systems servicing, fueling and charging procedures, hydraulic & pneumatic systems, oxygen and nitrogen servicing, landing gear, power plant overview, fuel system layout, ground servicing precautions, maintenance safety notes and structural servicing limits. Sourced from 1966 CIA translation.
Description
MiG-21FL Service Manual – Book I Airframe & Power Plant – PDF DOWNLOAD
Description
This rare MiG-21FL Service Manual — Book I: Airframe and Power Plant is an English-language technical translation of the original Soviet maintenance manual. It was produced for engineering and intelligence reference use and includes detailed servicing, maintenance and charging procedures for the MiG-21FL fighter aircraft.
The manual focuses on ground servicing operations, aircraft systems charging, safety precautions, servicing intervals, and system functional descriptions — essential for aviation historians, aircraft technical researchers, defense documentation archivists, and Cold-War collectors.
The cover page on p.2 identifies the manual as:
“AIRCRAFT MiG-21FL – SERVICE MANUAL – BOOK I – AIRFRAME AND POWER PLANT”
The introductory section on pp.6–8 explains aircraft features, high-speed airframe structure, powerplant integration, control systems, ejection seat and service preparation requirements.
Key Sections & Technical Coverage
Book Structure (p.4)
The aircraft service manual consists of:
Book I — Airframe and Power Plant
Book II — Armament
Book III — Instruments, Radio & Oxygen Equipment
(This PDF contains Book I.)
General Aircraft Servicing (pp.9–11)
Includes instructions covering:
General servicing precautions
Cleanliness & contamination control
Ground preparation of systems
Storage & preservation servicing
Post-flight servicing guidance
Chapter I — Fueling & Charging of Aircraft Systems (pp.12–17)
Procedures include:
Fuel servicing & draining
Charging hydraulic systems
Oil servicing
Nitrogen charging of accumulators
Oxygen system charging
Service pressure tables (p.17)
Safety notes for each operation
Hydraulic & Pneumatic System Charging (pp.13–16)
Details include:
Hydraulic reservoir servicing
Removal of trapped air
System pressure charging sequence
Charging with ground test cart
Hydraulic accumulator maintenance
The charging diagram on p.20 visually illustrates the hydraulic system layout and servicing ports.
Compressed Gas / Oxygen Servicing (pp.15–17)
Covers:
Oxygen charging precautions
Cylinder pressure values
Filling sequence
Leak-check procedures
Table lists recommended charging pressures for system bottles.
Chapter II — Fuel System (pp.18–19)
Provides:
Description of fuel tank groups
Fuel transfer sequence
Booster pump operation
Emergency supply provisions
The section explains tank group arrangement across:
fuselage tanks
wing tanks
collector tank & booster system
Illustrations & Diagrams
The document includes:
Side profile MiG-21 line drawing (p.5)
Hydraulic system servicing schematic (p.20)
System functional layout references
“POOR ORIGINAL” edge stamps showing archival scan fidelity
📄 File Details
| Field | Details |
|---|---|
| Manual Name | MiG-21FL Service Manual — Book I: Airframe & Power Plant |
| Aircraft Model | Mikoyan-Gurevich MiG-21FL |
| Language | English (CIA translation) |
| Publication Date | February 1966 |
| Systems Covered | Airframe, Fuel System, Hydraulic System, Oxygen & Gas Charging, Ground Servicing |
| PDF Quality | Archival scan, legible text & diagrams, some “POOR ORIGINAL” pages |
| Pages in File | ~498 pages |
