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Everything posted by grafspee
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@spacemishka Couple mistakes here, first when you want to turn plane on the ground put stick in to neutral this will unlock tail wheel, second thing you need to put stick to neutral or slight forward once you pass 100kph mark, you waited way too long. If you replicate what i did, 100% take off succes.
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When turbo kick it creates chain reaction, since turbo is powered by exhaust gases, sudden MP increase affects exhaust gases generation ratio and this speeds up turbo even more bringing even more MP, controling MP via boost lever is very difficulty due to big lag when turbo is spooling up. At higher alt this problem fades away since you have to use turbo all the time. high-speed vibrations is indication of too high MP or too high carb air temp or both. for example 64" and 2700 is WEP rating but this not mean that you can use it, watch carb air temp if it hits 50C you are maxed out. Same with military power 52" 2700rpm in hot day you may not be able to boost that high in case of P-47 RPM,MP and carb air temp are instruments needed to keep engine good.
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In this planes ignition timing advance is build in throttle levers like spitfire,p-51 and apparently p-47 as well. At SL you are fine below 2000rpm your throttle will be advance only a little bit but at high alt at this rpm throttle would be wide open this mean that ignition timing will be advanced too much, engine will lose power, and it will probably increase risk of detonations, but once again i think modeling here is overdone as well. P-47 manual advice to not operate engine at rpm below 2000 at high alt, but it is only recommendation if it was so dreadful for engine P-47 manual would prohibit that kind of power setting at high alt.
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I don't know is it fixed or not but as i remember you are unable to anticipate fuel tank goes empty, and if you do it, this mean that engine will cut out for a split second until you switch to full tank, according to manual pilot should watch fuel pressure which would start to drop and this is the time to switch fuel tanks, unfortunate in DCS fuel pressure drops to 0 in no time, so you can't react in time and engien cuts out and with current main bearing modelling, engine bearing will be damaged and it will deteriorate in short time and kill the engine. Only way to fly on drop tanks safe right now it to calculate your fuel consumption then you start timers on tank which you are using and with couple minutes safety margin you select other tank, you still can switch between tanks but remember to stop your timer when drop tank is not used, yes you would need 2 timers for left and right drop tank Manual also states, in case when pilot will miss moment to switch to next tank and engine cuts out, pilot need to reduce throttle and engage full tank, then go back to cruise power, that's it no mention about engine death, it is written in manner to not panic take your time and solve fuel cut out :)nothing like this imidietly switch to full tank your engine is dead any way
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I had same issue, hard crash on my side after this my gpu wasn't detected Instant crash after fly button clicked, i saw only cockpit not even loaded completely yet. I noticed that my ram usage was 99% i smell some memory leak, when i load Anton ram usage shots sky high.
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I'm not sure if auto lean/ rich is working at all, i can't spot anything while switching in to lean, i fly too short to notice less fuel consumption. It supposed to increase power a bit engine running at leaner mix will develop more hp at same rpm/boost it makes engine hotter and not allow use of higher boost due to decreasing anti detonant mixture properties. But i don't know how fast this auto leaning happens if it takes couple seconds it will be unnoticeable.
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Where is this option i don't recall that any warbird had this ? Mission editor ?
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That is cooling problem which is WIP right now.
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Why P-47 is so much harder to control than P-51?
grafspee replied to brucewhf's topic in DCS: P-47 Thunderbolt
In spitfire manuals they dont mention pitch sesitivity. Roll was an issue until boosted ailerons were introduced like in p38. Training films will not provide such data, But NACA P-47 D-30 evaluation report does. Also this report says that at speeds above 250mph stick force for G is extremely low. -
@VIKBELL Please elaborate.
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I noticed lately that my DCS crash after it takes all ram space available. In very short time it occupy more then 20GB of ram and it crash the system. Any fix for this? 32Gb not enough anymore ??
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Lean mixture all the time like during take off and climb if so, don't expect engine to feel well after this I take off climb at 52" up till 35k and my engine is fine, looks like similar problem to Dora when you operate engine at lower rating you get spark plug misfire, but some how i have no clue why this makes engine seized up. But from your report i can see that main engine bearing was damaged, i assume that you experienced short fule cut off due to empty tank, unfortunately main bearing damage is over done and you can't cut out during flight, this will kill your engine's bearing clean off. Couple seconds of pure wind milling and engine is gone.
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I'm looking for pure Korea war time server, i know about cold war server but time spawn 1947-1991 is way too huge to be able to compete in Mig-15 or F-86 against mig-21 or f-5
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With throttle and boost lever linked, in certain situations you lose power compare with throttle and boost lever unlinked and controlled separately, as @razo+r said from certain alt throttle can be wide open and boost regulated only via boost lever. Reason why this is happening is that P-47 uses 2 ways of forced induction devices, first is supercharger build in engine it self and turbocharger installed at rear, this is why you have 2 levers responsible for boost.
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Why P-47 is so much harder to control than P-51?
grafspee replied to brucewhf's topic in DCS: P-47 Thunderbolt
Because it is P-47 and not P-51. It is only your impression, for me P-47 isn't much harder to control, ofc it is much heavier plane so act differently then P-51. At most a bit harder, it is obvious that for every plane you would need different settings to be able to fly smooth. -
@kablamoman SOW server has been shut down indefinetely.
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Actually at high alt you can run 1.8 ATA w/o mw50, tested it, it works. @Coco22 by using mw50 injection you actually make it less stressful for engine lowering combustion chamber temp, when mw50 enters cylinder it takes a lot of heat in evaporation process, sometimes it may cause temp shock damage but in liquid cooled engine it is less likely to happen. The way other games doing that by using timer, when 5 min mark ticks engine cracks in half, this is 100% BS. Lets say we have two engines that actual will brake after 5 min max power, first engine has 0 hours and is brand new and second has 100 hours on it, so both will brake after 5 min i don't think so if max power time limit would be set withing 1 min margin for 5 min. For a single flight exceeding time limits is just a no factor, you will land take new and go again. Even when you won't change planes in game you still won't hit 10h mark on single engine. Time limits are set so engine can last for hundreds hours of operation. Maybe some day some kind of system will be implemented so your plane run hours will be assigned to single pilot.
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Last patch brough fix for this issue, so thanks to ED team for fixing it
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Agree, but our Anton is limited to 1.42ATA and boost regulator somehow fails to maintain 1.42.
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It depends on speed you flying, at higher speed frequency of this vibrations may get so high that rudder can fall apart. In real plane pilot would not be able to hold stick/rudder pedals with that kind of vibrations on it, he would slow down or even consider to RTB, in DCS even cockpit shake won't enough.
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It is hard to say, i doubt that any of this tests were performed to determine at what speed exactly rudder comes off. But as a game DCS have to punish somehow for not fallowing plane's operation procedures, it cant provide unbearable stick vibrations so it has to do some other way then. The best example that stick vibrations or airframe vibrations are not enough is that some players don't even notice that and kept flying for months with this and everything is ok until they get to high speed. The biggest issue for me with P-47 is bloody engine over speed, i can't get P-47 to 500mph indicated in divie because my engine dies while i do that.
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It is important to close them completely, at very high speeds even a bit opening will make rudder to flutter. This is only thing which i can think off what would make your rudder departure. It could be a battle damage as well. If you can recreate this you should post track when this happening
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Cylinder head temperature. If i recall correctly 260C for auto rich mixture and 230C for Auto lean mixture
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Very important thing to mention is that cowl flaps in closed position are not exactly closed Fortunately cowl flaps operation is pretty much straight forward, you keep them open only on the ground and in long climbs every other situation you have them closed for example combat, landing, cruising, diving.
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correct as is F-15C Structual wing surface failure.
grafspee replied to LT_STARBUCK_107's topic in F-15C for DCS World
40 degrees of AOA are you sure ?