We briefly cover the history of the inline 6 engine in aviation and then go over technical information to determine it's suitability for light aircraft,
attempting to uncover the reason for it's disappearance from modern aviation.

Follow me on Instagram:   / lets_go_aviate  

Chapters:
0:00 - Inline 6 Legacy
0:22 - The Race for More Horsepower (Early WWI)
1:33 - End of the Road for the Rotary
2:17 - The Rise of the Inline Engines
3:08 - New Kid on the Block (BMW IIIa)
4:06 - Inline 6 Setting Performance Records
4:53 - Inline 6 Advantages
5:55 - Inline 6 Primary Balance
7:34 - Inline 6 Secondary Balance
10:11 - Firing Interval
10:28 - Why the Inline 6 is Superior
10:48 - Inline 6 Disadvantages
11:44 - The Disappearance of the Inline 6 in WWII
12:31 - The Inline 6 in Modern Aviation

Image attribution:
BMW M3 engine-author Michael Price (https://creativecommons.org/licenses/...) cropped, face overlaid
Fast and the Furious inline 6-author Poudou99 (https://creativecommons.org/licenses/...) cropped, face overlaid
Mercedes D.II author-Franco Atirador (https://creativecommons.org/licenses/...) no changes
Mercedes D.III (two photos) author Zenwort (https://creativecommons.org/licenses/...) no changes
D.IIIa on Fokker D.VII-author Kogo (https://creativecommons.org/licenses/...) cropped & text caption overlaid
BMW IIIa-author Chris and Kelly (https://creativecommons.org/licenses/...) no changes
BMW IIIa cutaway-author Piotr Witkowski (https://creativecommons.org/licenses/...) no changes
Fokker D.VII-author Julian Herzog (https://creativecommons.org/licenses/...) cropped + zoom
BMW IV author-Stahlkocher (https://creativecommons.org/licenses/...) no changes
Siddeley-Puma MilMusBuc-author Zenwort (https://creativecommons.org/licenses/...) arrow overlaid, cropped
DH.88 Comet-author Woldere (https://creativecommons.org/licenses/...) text caption overlaid + zoom
De Havilland DH.89 Dragon Rapide-author Falcon® Photography (https://creativecommons.org/licenses/...) zoom & cropped
Brown B-2-author SDASM Archives (https://creativecommons.org/licenses/...) text caption overlaid
Zlin142 Rob Harrison "The Tumbling Bear"-author Tomás Del Coro (https://creativecommons.org/licenses/...) zoom + crop & text caption overlaid
Zlin Z-126 Letecké muzeum-author Palickap (https://creativecommons.org/licenses/...) cropped & text caption overlaid
Replica Sopwith Camel uncovered-author Alan Wilson (https://creativecommons.org/licenses/...) cropped + zoom
Austro Engine AE500-author Waerfelu (https://creativecommons.org/licenses/...) no changes
Titan T-51 Mustang-author Bidgee (https://creativecommons.org/licenses/...) no changes
AeroVolga LA-8-author Aleksandr Markin (https://creativecommons.org/licenses/...) no changes
Zlín Z-42-author bomberpilot (https://creativecommons.org/licenses/...) cropped & text caption overlaid
Zlin43-author Aleksandr Markin (https://creativecommons.org/licenses/...) no changes
Zlin Z-526 Trener-author Mike Burdett (https://creativecommons.org/licenses/...) cropped
Mercedes D.II-author Aconcagua (https://creativecommons.org/licenses/...) cropped
Fokker D.VII with Hispano-Suiza 8F & Daimler D.III-author Valder137 (https://creativecommons.org/licenses/...) cropped + pan & zoom
Walter M-337-author Ltosnar (https://creativecommons.org/licenses/...) no changes

Video attribution:
Inline 6 Cylinder animation-author MichaelFrey (https://creativecommons.org/licenses/...) freeze frame + cropped
4stroke animation-author Zephyris (https://creativecommons.org/licenses/...) freeze frame + overlaid arrows
Inline 4 Cylinder animation-author MichaelFrey (https://creativecommons.org/licenses/...) cropped + overlaid arrows
Fokker DVII Mercedes run up at Antique Aero by Gregory Rydquist (   • Fokker DVII Mercedes run up at Antiqu...  ), License CC-BY
Fighter Pilot | Training | WW1 by BlackBearSix.TV (   • Fighter Pilot | Training | WW1  ), License CC-BY
WWI - Fighter Planes by Loch of Shining Waters (   • WWI - Fighter Planes - Archive Footage  ), License CC-BY
TVAL WWI aircraft display at Wings over Wairarapa 2021 by Lspace (   • TVAL WWI aircraft display at Wings ov...  ), License CC-BY
Sopwith Camel Run Old Warden by Oldwardenman (   • Sopwith Camel Run 2 Old Warden 22 Sep...  ), License CC-BY
Spinning Bike Wheel and Conservation of Angular Momentum by MITK12Videos (   • MIT Physics: Spinning Bike Wheel and ...  ), License CC-BY
Spitfire Recognition| US Air Force Instructional Film (1944) by Armoured Archivist (   • Write Like A Winner | Write Your Best...  ) License CC-BY
Sopwith Camel fires up its engine by Scribex (   • Sopwith Camel fires up its engine  ) License CC-BY
Junkers Filmdokumente by Hugo Junkers (   • Junkers Filmdokumente - F13 und G24 a...   and    • Junkers Filmdokumente - Ein seltener ...  ) License CC-BY