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About 71st_AH_Barnacles

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    Lincolnshire, UK

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  1. 71st_AH_Barnacles

    Belgian F-16s destroyed on ground in bizarre accident

    20mm op plz nerf
  2. 71st_AH_Barnacles

    1943 Berlin Blitz

    Just watched it. Totally agree. It's really well done, the way they've matched the 3d video to the war correspondent's narration.
  3. 71st_AH_Barnacles

    Lancaster VR "game"

    I saw this is available on Oculus store, for free. The BBC has used a historic report from a war correspondent to create this VR experience.
  4. 71st_AH_Barnacles

    Spit Mk9 Post 3.006 Update

    Happens similarly in 109s and P40 too.
  5. 71st_AH_Barnacles

    Spit Mk9 Post 3.006 Update

    True the air is thinner, but true airspeed is higher for constant power with increasing altitude (although indicated air speed falls slightly). As a pressurised radiator system maintains the specific heat capacity of the water as altitude rises, and air temperature decreases with increasing altitude, pressurised radiator systems are more effective at higher altitudes.
  6. 71st_AH_Barnacles

    Spit Mk9 Post 3.006 Update

    Generally the difference I think is that the aero engine's radiator cap has a valve to prevent the system drawing a vacuum as well as to prevent overpressure. Eg whilst descending.
  7. 71st_AH_Barnacles

    Spit Mk9 Post 3.006 Update

    https://ww2aircraft.net/forum/threads/me-109-f-vs-spitfire-coolant-radiator-installations.31940/ There are some interesting posts on this link. Also someone had access to a test that said the spit IX would not exceed 100 c coolant temperature in level flight with radiator flaps in minimum drag position ( closed ) at 25lbs MP at full throttle height in summer conditions. Hope they have a fiddle with this plane along with the 190a8 which seems to suffer from an unusual amount of overheating.
  8. 71st_AH_Barnacles

    Spit Mk9 Post 3.006 Update

    Anyway in this manual https://www.google.co.uk/url?sa=t&source=web&rct=j&url=http://zenoswarbirdvideos.com/Images/spit/SPIT9MANUAL.pdf&ved=2ahUKEwiO5M-o7-DdAhUmz4UKHTCtBIkQFjASegQIAhAB&usg=AOvVaw1lmsslkgfhPIEkgwhR2U63 applicable to the Merlin 70 and 66, it says the radiator flap open button is purely for testing the operation of the flaps. There's no mention of the need to override auto radiator in any flight regime. Like Jason says there's been some big changes so they'll need to sweep up some emergent issues, but it looks like this is one of them
  9. 71st_AH_Barnacles

    Spit Mk9 Post 3.006 Update

    Yes I think you're absolutely spot on. I reckon the boiling expression is a misnomer the 'boiling' happens in the vapour once it's vented to atmosphere. Of course boiling can happen in a pressurised system but that is not necessarily the same as the pressure relief lifting.
  10. 71st_AH_Barnacles

    Spit Mk9 Post 3.006 Update

    I saw a article about this in ww2 planes. Basically the factors are: lower air mass flow (basically lower IAS) offset by lower air temperature and lower power produced by the engine above full throttle height. The conclusion was that broadly the cooling systems generally are around as effective at all altitudes. I can't remember the paper mentioning anything to do with lower boiling points.
  11. 71st_AH_Barnacles

    Pe-2 Rockets possibly bugged

    That's actually historically correct. There are only 8 firing circuits so the last circuit is attached to 2 rockets.
  12. Yes. When this happens it stops working then cool down and work again? or shoots erratically until cools down? They get less accurate. The boiling temp in the airplane manual as a parameter is taken at what altitude? For example Lagg 3 Water rated temperature in engine output: 70..85 °C Water maximum temperature in engine output: 100 °C I don't know, but you seem to be able exceed 100 C at sea level and at 10km altitude you will vent the radiator in the LaGG 3
  13. Tried the a8. Heating hasn't changed.
  14. The smoke effects are great and must have been complicated technically to achieve. I hope this means the Dev's are able to simulate detonation eventually.
  15. If that's so it should come under the minor tweaks that Jason mentioned and be tweaked in due course. It's quite a big change and with so many planes it's clear that there maybe some alterations to overheating thresholds. AnPetrovic knows his stuff though so I'm still very pleased with these changes and am sure they will improve historical accuracy.