Comments by "FiveCentsPlease" (@FiveCentsPlease) on "The INVERTED V12 🤯 Why!?!? - 3D animation - DB 600 Engine // Daimler Benz" video.

  1. +@michaelpetterson4919 The original RLM engine specification from the 1920s was for inverted engines with a provision for the central-fire cannon installation. Maintenance was also considered as well a pilot visibility.
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  2. +@TongorBlackHawk В самых нижних частях двигателя имелись откачивающие насосы для удаления масла.
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  3. +@Whatdyoumean Hobbyists and professional machinists are slowly digitizing the parts for these engines for fun or to remake new parts. I can see a time in the future where you can buy a highly detailed, 3D printed model of these engines in some scale that you can build and display, although I can see that they would still be very expensive.
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  4.  @Whatdyoumean  I was following a hobbyist who had half a Merlin and was 3D printing the missing components in his spare time. But I haven't kept up in several years. There is a hobbyist in Europe who has machined a BMW 801 for a static project, obviously not flight certified. He may be working on the DB series too.
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  5. +@gameboy3800 The T80 car still exists in a museum with the DB-603.
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  6.  @gameboy3800  I believe you are correct that the DB603 was removed for wartime use.
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  7. +@davidhirschhorn2960 Most aeroengines are dry-sump and pressure-lubricated. Scavenge pumps will collect and circulate the oil back to the reservoir. In the DB engines, there are scavenge pumps in lowest part of the engine in the rocker covers to collect the oil that flows there as well.
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  8. +@TinaHollner Inertia starters were used on German and Allied aircraft. Sometimes it was available as an emergency backup start.
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  9. +@alfredshort3 There was a tank version of the DB-603. Two prototype tanks were built and tested. One survives in a Russian museum.
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  10.  @TheEulerID  Two Panzer VIII Maus prototypes were constructed for testing and were powered by MB509 V12 engines that were derivatives of the DB-603. The Soviets captured them and one survives at the tank museum in Kubinka.
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  11. +@leso204 The cannon does not fire through the crankshaft but through the vee of the engine cylinders and exits through a hollow propeller shaft. The prop is geared off of the crank for most aero engines.
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  12. +@DavidJacques-h6s Most of those engines were dry-sump and pressure-lubricated and used scavenge pumps to recirculate the oil.
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  13. +@chadkar8904 I think the original factory specs were top overhaul every 100 hours, full overhaul every 200 hours and max engine life of 600 hours.
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  14. +@Fladflidington The Japanese built a licensed version of the DB-601 engine. Although they lacked the expertise to manufacture precise tolerances so those engines were problematic.
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  15. +@zetrix6277 There is more than one firing order combination for a V12 engine depending on the design or requirements because they can create vibration loads. The typical order for the DB-605 is 1-8-5-10-3-7-6-11-2-9-4-12. However, various sub-series of the DB-605 may have a different order. The Merlin and the Griffon have a different firing order and they sound different because of that.
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