Why Rotax's 300hp V6 Aero Engine Never Saw Production

Lets Go Aviate March 16, 2025
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Lets Go Aviate

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I'm an aviator sharing knowledge about everything in aviation I'm passionate about. I love diving into complex subjects, be it aerodynamics, pilot techniques, safety or powerplant subjects and breaking it up into understandable chunks, always explained with as little mathematics as possible. Welcome to the channel, let's explore general aviation together!

Video Description

Rotax designed and built - several - 300hp V6 engine examples. Not only that, it was just about the get certification when Rotax announced it would not produce the engine for the market. What happened? Was there a problem with the engine design? We explore the engine in detail and find out. Adept 120° V6 - https://youtu.be/RNy6dL3UqDs Balance shaft claim source: https://www.aero-news.net/index.cfm?do=main.textpost&id=03fbf60a-41b2-4a3a-b743-3f176f545c18 Liability cost source: https://web.archive.org/web/20170711045020/http://www.freepatentsonline.com/article/Transportation-Journal/17572867.html Follow me on Instagram: https://www.instagram.com/lets_go_aviate/ Video attribution: Aircraft engine Type 936 by BRP-Rotax (https://youtu.be/nBlSS1SM_S8), copyright BRP-Rotax CONQUEST BY AIR by PublicResourceOrg (https://youtu.be/Vff7bqGuOR8), license CC-BY Inline 6 Cylinder-author MichaelFrey (https://creativecommons.org/licenses/by-sa/4.0/deed.en) cropped Engine V6 Mechanical Animation by JKastle007 (https://youtu.be/eJA7wVm-ADs), license CC-BY MANUFACTURING CRANKSHAFT by MR.MACHINE (https://youtu.be/AEsDHm4G5SY), license CC-BY Straight-3 engine-author MichaelFrey (https://creativecommons.org/licenses/by-sa/4.0/deed.en) cropped, rotating, multiple use next to another BRP-Rotax – Company Video by BRP-Rotax (https://youtu.be/lK40jDfrJJA), license CC-BY Image attribution: JAGUAR 3L V6 Supercharged-author Jaguar MENA (https://creativecommons.org/licenses/by/2.0/) crop+zoom Rolls-Royce Merlin 61 12 cylinder-author Tomás Del Coro (https://creativecommons.org/licenses/by-sa/2.0/) cropped Split-trhow crankshaft-author Pᴀᴜʟsᴛᴇʀ2 (https://creativecommons.org/licenses/by-sa/3.0/) red circle overlaid McLaren Artura-author Alexander Migl (https://creativecommons.org/licenses/by-sa/4.0/deed.en) crop+zoom 2022 Ferrari 296-author Max Baillie (https://creativecommons.org/licenses/by-sa/4.0/deed.en) crop+zoom Upper balance shaft exposed-author l0lnix (https://creativecommons.org/licenses/by/2.0/) no changes Lycoming LIO-360-author YSSYguy (https://creativecommons.org/licenses/by-sa/3.0/deed.en) cropped V11 big valves-author Tutkamestari (https://creativecommons.org/licenses/by-sa/3.0/deed.en) no changes FADEC for piston engines-author (https://creativecommons.org/licenses/by-sa/3.0/deed.en) no changes FW 190 A8-author Kogo (https://en.wikipedia.org/wiki/GNU_Free_Documentation_License) overlaid text Lycoming AEIO-540-D4A5-author Cliff from I now live in Arlington, VA (Outside Washington DC), USA (https://creativecommons.org/licenses/by/2.0/deed.en) no changes Continental IO-520-author Stahlkocher(https://creativecommons.org/licenses/by-sa/3.0/deed.en) no changes TSIOF-550-D-author FlugKerl2 (https://creativecommons.org/licenses/by-sa/3.0/deed.en) no changes Textron Lycoming engine-author Greg Heartsfield (https://creativecommons.org/licenses/by/2.0/) crop+zoom Beechcraft Bonanza-author D. Miller (https://creativecommons.org/licenses/by/2.0/) crop+zoom MAULE M-7-author Aleksander Markin (https://creativecommons.org/licenses/by-sa/2.0/deed.en) crop+zoom Sonaca 200-author Sonaca aircraft (https://creativecommons.org/licenses/by-sa/4.0/deed.en) crop+zoom HB-EBG LSGE(Bonanza)-author Hp.Baumeler (https://creativecommons.org/licenses/by-sa/4.0/deed.en) crop+zoom US Made GenAvAirplanes 1946-2009 UnitsShipped NetBillingsIn2009Dollars-author Zxtxtxz (https://creativecommons.org/licenses/by-sa/3.0/deed.en) no changes Adept 320T engine-author FlugKerl2 (https://creativecommons.org/licenses/by-sa/3.0/deed.en) no changes Chapters: 0:00 The Rotax 936 0:49 1 - Historical Factors 2:05 2 - Rotax 936 Design 9:55 3 - Production Cancelled 11:31 4 - Liability 14:22 5 - Demise of the 120° V6?

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