Junkers Jumo 211 — Engine Manuals Collection

A curated collection of 9 unique primary-source factory documents covering the Junkers Jumo 211 — the most-produced German aircraft engine of World War II — variants A, B/D, F/J, and G/H. All documents are in German language.

A scaled-up successor to the Jumo 210, the Jumo 211 was designed by Junkers Flugzeug- und Motorenwerke AG and powered the Junkers Ju 88, Ju 87 Stuka, and Heinkel He 111. With 68,248 units produced between 1937 and 1944, it was the backbone of the Luftwaffe’s bomber fleet throughout the war.

Note: Some manuals cover multiple variants (e.g. B, D, G, H). Files are included in each relevant variant folder for easier access. The total of 9 refers to unique documents only.

Variant A — 1 Manual

• Jumo 211 A Operating Instructions
  Jumo 211 A Aircraft Engines Operating and Maintenance Instructions Manual — Betriebs- und Wartungsvorschrift (German Language)

Variant B / D — 5 Manuals

• Jumo 211 B/D Operating Instructions — 3 documents:
  – Jumo 211 B, D Aircraft Engines Operating and Maintenance Instructions Manual 1939 — Betriebs- und Wartungsvorschrift (German Language)
  – Jumo 211 B, D Aircraft Engine Operating and Maintenance Manual 1940 — Betriebsanweisung und Wartungsvorschrift (German Language)
  – Jumo 211 B and D Aircraft Engine Short Operating and Maintenance Training Instructions — Kurz-Betriebs- und Wartungs-Anweisung (German Language)
• Jumo 211 B/D Engine Subsystems
  Jumo 211 B, D, G and H Aircraft Engine Fuel Injection System Manual — Einspritzanlage (German Language)
• Jumo 211 B/D Technical Reports & Certificates
  Jumo 211 B, D, G and H Aircraft Engine Performance Diagram — Leistungsschaubild (German Language)

Variant F / J — 3 Manuals

• Jumo 211 F/J Engine Handbook
  Jumo 211 E, G Aircraft Engine Handbook Manual — Motoren-Handbuch (German Language)
• Jumo 211 F/J Propeller Systems — 2 documents:
  – VS 11 Variable-Pitch Propeller System for Jumo 211 F and J — Description, Operation and Maintenance Manual — VS 11-Verstell-Luftschrauben-Anlage (German Language)
  – VS 11 Variable-Pitch Propeller System for Jumo 211 F and J — Equipment Handbook, Geräte-Handbuch, Baureihe 3 und 6, August 1943 (German Language)

Variant G / H — 1 Manual

• Jumo 211 G/H Technical Reports & Certificates
  Jumo 211 B, D, G and H Aircraft Engine Performance Diagram — Leistungsschaubild (German Language)

Historical Background

Designed by Junkers Flugzeug- und Motorenwerke AG as a scaled-up successor to the Jumo 210, the Jumo 211 was the definitive Junkers piston engine of WWII. Its key variants:

• Jumo 211A/B/C/D — Early production models with standard cooling
• Jumo 211E — Introduced pressurized cooling system
• Jumo 211F — Strengthened crankshaft for higher power output
• Jumo 211J — Added intercooler for improved high-altitude performance

Technical Specifications

• Type: Liquid-cooled inverted V-12 piston engine
• Cylinders: 12 in 60° inverted V configuration
• Displacement: 35.0 litres (2,136 cu in)
• Bore × Stroke: 150 mm × 165 mm
• Compression Ratio: 6.5:1
• Power Output: 1,000 – 1,500 hp
• Weight: 640 – 720 kg (1,411 – 1,587 lbs) depending on variant
• Fuel: B4 grade, 87 octane aviation gasoline

Notable Engineering Features

• Direct fuel injection — early pioneer of this technology
• Two-speed supercharger for sustained high-altitude performance
• Most-produced German aero engine of World War II — 68,248 units

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