BMW VI Aircraft Engine — Operating Instructions & Technical Publications

A curated archive of original manufacturer documentation for the BMW VI, the legendary 45.8–46.9L liquid-cooled V12 piston engine that powered the interwar German aviation build-up and its licensed derivatives across the Soviet Union and Japan. This living collection brings together primary-source operating instructions and technical publications across all major production series.

Select your variant below to access the documentation set for your specific engine series.

📦 Collection Contents by Variant

Variant: Series 3–4 — 1 Manual

• BMW VI 3-4 Operating Instructions
  BMW VI, Series 3 and 4, aircraft engine — Description and Operating Instructions Manual
  Beschreibung und Betriebsanleitung Reihe 3 und 4 — German Language

Variant: Series 6–7 — 1 Manual

• BMW VI 6-7 Operating Instructions
  BMW VI, Series 6 and 7, aircraft engine — Description and Operating Instructions Manual
  Beschreibung und Betriebsanleitung Reihe 6 und 7 — German Language

Variant: Series 8–9 — 2 Manuals

• BMW VI 8-9 Operating Instructions
  BMW VI, Series 8 and 9, aircraft engine — Description and Operating Instructions Manual
  Beschreibung und Betriebsanleitung Reihe 8 und 9 — German Language
• BMW VI 6-7 Operating Instructions (included)
  BMW VI, Series 6 and 7, aircraft engine — Description and Operating Instructions Manual
  Beschreibung und Betriebsanleitung — German Language

Non-Variant Supplement — 1 Publication

• BMW VI Technical Publications
  BMW 6 Engine — The German Aircraft Engines Series, Volume 22
  Historical and technical notes — German Language

⚙️ Engine Overview

Type: Liquid-cooled V12 piston engine (60° configuration)
Displacement: 45.8–46.9 litres (2,797–2,862 cu in)
Power output: 500–750 hp depending on variant and fuel grade
Bore × Stroke: 160 mm × 190/199 mm (master/articulated rod geometry)
Compression ratio: 5.5:1 to 7.3:1
Weight: 510 kg (1,124 lbs) dry
Fuel: Minimum 87 octane gasoline
Production: 1926–1938 | ~9,200+ units (BMW direct; excluding licensed copies)

✈️ Primary Applications

Military: Heinkel He 51, Heinkel He 70, Dornier Do 17, Tupolev TB-3 (via Soviet M-17), early Junkers variants
Civilian: Dornier Wal, Junkers G 38, Rohrbach Roland
Notable variants: BMW VI 5.5 / 6.0 / 7.3 (compression variants), BMW VIu (reduction gear), Mikulin M-17 (Soviet licence), Kawasaki Ha-9 (Japanese licence)

🏛️ Historical Significance

The BMW VI provided the engineering foundation for the secret pre-WWII Luftwaffe build-up. Its Soviet counterpart, the Mikulin M-17, powered a significant portion of early Soviet bomber and tank fleets. Post-aviation use included the experimental propeller-driven Rail Zeppelin high-speed railcar and the custom vintage race car Brutus, still displayed at the Auto & Technik Museum Sinsheim.

Current status: Museum / Historical only. No active flight status. No current Type Certificate holder.

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