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grafspee

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Everything posted by grafspee

  1. According to spit mk II manual, this gauge shows trim tab relative position to elevator
  2. From P-51 manual i know that plane is capable of full power engine run up, this mean that crew tight tail to the ground, someone hops in cockpit, start the thing, open throttle to max and test engine, and this proof that p-51 can cool it self with static prop wash, and this mean that at very low speed should not be cooling problems.
  3. Cut off is not the same as closing tanks, cutoff is special mechanism shutting off engine and it's location is in carburetor or in injection system. It does pretty much same thing as fuel tank shut off valve but location of this is at very end of fuel system not beginning. Shutting fuel tanks will kill engine but it will take much longer. Cutoff via dedicated valve will shut off the engine but fuel in fuel lines will remain. Shutting off via magnetos will flood engine with fuel and it is very dangerous in RL operations, but in game you don't even need to shut engine off just hit ESC and done
  4. You can try closing fuel lever, this way engine should not splatter. I brought this issue some time ago, in case P-51 or spit which splatter a lot, but with no effect. There is maybe a 1000 or more videos on YouTube, when engines are shot off not a single puf can be heard. And this generic splatter sound dating back P-51 release time, applied to radial engine that is just biggest MEH!
  5. I tested it couple of times, manual or auto P-51 still over heats, in many cases manual opening don't change a thing because auto mode have them wide open. As i remember i could idle P-51 on the ground as long as i could w/o overheating, so you are saying that coolant goes above 121C in your case and by opening shutter manually temps goes down, in that case it is weird. I position P-51 up wind and it keep cool nicely. Auto mode shutters are set according to P-51 maintenance manual as @YoYo said. My problem with P-51 cooling is coolant radiator efficiency and it is not related to shutters, it underperforms.
  6. I got P-51 to 46k
  7. And this small ww2 team forced to waste time to code "game flight" mode , and on top of this, it still does not work, so what's the point really?
  8. i can add another tip, once you lift off pull gear up asap, it removes a lot of drag, this is first thing which you need to do it after you take off, not flaps not engine power adjustment first thing is "GEAR UP" I loaded up mosquito with bombs and 100% fuel, and i picked up short normandy airfield, you can take off mosquito from those short runways.
  9. I found work around for this issue, don't crash.
  10. It works on my end, i cant move throttle beyond detent untill it is lifted. You need to select this in special tab to "alwayes on" or something like this
  11. Mossie has throttle detent' so you need to lift it if you want 18lbs boost. It is weird that he can not take off at 12lbs or 14lbs cant remember throttle detent limiter value.
  12. @Coco22 P-51 engine issue should be posted in P-51 forum thread. Post it there then ppl more likely will respond to your request. Thanks
  13. I like this random pick from b-24 getting hit by flak, and now simple green ppl will say wow, what a damage P-51 chopping off bomber in half.
  14. Dive from what alt at least, P-47 dive performance wasn't same at all alt. Dive from high alt often end up with compressibility problem making elevator ineffective so total lost of control of the plane. Definitely wasn't unmatched diver from what i have read , depends on P-47 versions, N or M get a lot of improvement in that regard but D beside compressibility flaps not so much. Take note that K-4 encounter was extremally rare, by the time K-4 entered full service Luftwaffe was in bad shape. Mos of the encounter reports were with early versions of 109 or fw 190.
  15. This is how i see it when no throttle available this is the easiest way.
  16. Manual which i have mosquito mk 6 used 23 or 25 merlin engine. And merlin 25 is modeled in DCS it allow 18lbs boost merlin 23 was limited tp 14lbs for take off
  17. It is in every plane that switch to lower gear happens on lower alt, my issue is why i can boost beyond 1.42 ATA and this does not explain why i can boost over 1.6ATA And there is second thing, why supercharacter speed don't change when ATA starts to drop, why supercharger high gear goes in when ATA is low i can't remember exactly but change happens after ATA drops to 1.1. Reason is the power output of the engine, supercharger speed changes when power output for low and high gear equals, so when you switch engine running on low blower with 1.3ATA boost in to high blower you will loose power. For example V-1650-7 peak power for low blower is 1720hp and for high 1490hp it it obvious that you have to wait until power drops to 1400 on low blower to have any benefit switching in to high blower. I think they did that to not over cool engine in high speed dive, which already had very efficient cooling, but higher ATA does not mean higher power when comparing engine on different supercharger speeds.
  18. Not necessary we only see small portion of engine operation, lat say that engine supposed to last 300h. Then yeah you need to be below 80C oil temp, of you want 10 hour engine you can go for 100+ oil temp. Those limits are set for long term use, exceeding oil temp will kill your engine for sure but not in 30 min or 40min maybe in 2-3 hours. I will state this again games which model engine damage on timers so for example engine limit is 5 min at 1.4 ata and if you pass this mark engine blows up is just BS.
  19. In reports speed was often TAS. What does "rated altitude " mean in this report, if it mean critical alt, in thhat case this is not a marlin 25 powered mosquito, merlin 25 is rated at around 14k Just tested it, at 22k maxed out 8-9 punds of boost in shallow dive i managed to get 260mph at 20k, you really thinks that ED overshoot performance by 100mph Comon. mosquito with merlin 72/73 yea i can believe this but not with merlin 25
  20. Wonder how engine life time was reduced after this engine run up 102C, probably to 5 hours maybe definitely you don't want to do that in RL.
  21. 350mph ias at 22k is 550mph. It had to be hell of the dive. 350 tas i would believe in this.
  22. This engine has something like 100hp or more fan which blow air through engine, this is unique feature all other will cook if you do that. But if you look close on temp gauge there are hand made marks and i think 82 is close to redline mark i think. @Lixma 06 try set up as high as possible ambient temp then do the test.
  23. @Hamilton "Full right rudder for take off" this is procedure from Spitfire manual, you can use what ever you like, what fits you best this is just a game. This right rudder trim is part of plane configuration for climb, you use high power and with low speed it require a lot of right rudder, so to make it easier for pilot trim lifts some workload from pilot. "zero" the trim never happens , You compensate your slip with rudder pedals or with trim if you want put your foot off from rudder pedals that's it.
  24. @peachmonkey don't expect that ww2 team will fix recent bug, this bug is just placed in queue and bug list is very very long. It is only my impression but i think that ww2 DCS produce more bugs then they can fix.
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