

tavarish palkovnik
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Everything posted by tavarish palkovnik
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Circular ellipse is perhaps of mixing ET and ER
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I would still like to see output from simulator (this called DLZ) in ZPS at 10km for 27ER (and for 27ET what would be highly appreciated) in two options: Fighter 900km/h / Target 900km/h Fighter 1050km/h / Target 900km/h With noted expected seconds of flight in cases of Drmax Maybe I'm asking too much but like there is a saying, 4 eyes see better then 2
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Theoretically speaking yes and no CFD or old fashion mathematic will give you Cx function for angle of attack (alpha) as zero, or eventually for some value of alpha but as continuous number. Horizontal flight is dynamic process and for true calculations we need to have lot of other functions for corrections and/or adjustments how to convert Cx at alpha (and delta-rotation of aerodynamic surfaces) zero to true induced Cx with alpha and delta angels involved.
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Chizh, ситуации в ЗПС, стрельба вдогон, которых я не вижу на графиках из этого программа.
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Не вижу этого, вижу 900 оба только для 27ЭТ и в ППС.
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Chizh, сможешь ли сделать ситуацию в ЗПС на 10км с прогнозируемыми секундами полета в соответствии с Dрmax , в двух вариантах 1) Vи=Vц=900км/ч 2) Vц=900км/ч Vи=1050км/ч
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@BlackPixxel Seconds of flight is what we need...in first case 900 vs 900 km/h you see that flight time is 54 seconds. 47150m - 54*250 = 33650m what is travle of the rocket, and at the end rocket will have velocity something over 250m/s...with such margins maybe something between 300 and 350 m/s In other case we don't see seconds, Chizh should input 46,96 km in cell to get specific time for this Drmax1, it will be 40 and something seconds... 46960m - 4...*415 = 2....m -> travel of rocket
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@Chizh Какая цель самая большая в этом симуляторе, большая цель Су-27 - это то, что мы видим, можно ли выбрать большую цель, такую как B-52 или Ту-95 или какой Ил?
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First one is with 27ET, good sample to show difference between T and R in drag force relation. It is in this case 15%-20% more range in favour of R-27ER. It is absolutely in order that with increasing of target speed in some point max range will start decreasing, it is related with necessity No.1 ... velocity of rocket must not be less then velocity of target - in case of using full kinematic potential of rocket. On other presentation, R-27ER 900 vs 1500 km/h ... t=42s is for input Di-c=50km ... just in case. For 59km as Drmax1 it could be t=49s and due to safety margin velocity of rocket is 455m/s. If standing on the edge...end velocity 415m/s (1500km/h) Drmax1 is going to 64km. With vc=500m/s -> Drmax1=60km ... vc=600m/s -> Drmax1=56km etc etc
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Don't see much sense in this new placement of ZVP or ZRP, whatever called, if energy of rocket will be criteria. If kinematic and dynamic profile of rocket's flight should be same in PPS and ZPS (gorka and similar stuffs ignored) then there is significant mismatch of reserve or some other term would be more appropriate, between PPS and ZPS. For example, at 10km and vi=vc=1100km/h, this 60km in PPS is very close to energetic potential, I'm counting time of flight as 54,3 sec and terminal velocity of rocket is 415m/s. Few seconds more and rocket energy in both terms is over. However, in ZPS and presented 22km, I'm counting flight of 32,8 sec, terminal velocity 681m/s what makes high approaching speed of 376m/s. Why there is so much reduction, why such high speed of rocket is necessary. If I try in opposite and increase drag force significantly to have more reasonable approaching speed in ZPS to match 22km, less then this overrated 376m/s...although I don't see R-27ER to have such drag as like said 5V27 or similar, then in PPS same kind of kinematic and dynamic profile result with fact that main criteria and it is that rocket must not have less speed then target, at 60km rocket is well below 305m/s
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First time I'm seeing that shooting distance for target in rakurs 4/4 exceeding shooting 0/4 (ZPS) for more then 50% And very surprised that R-27ER could be considered with drag force exceeding drag force of, for example, 5V27 of ZRK Neva
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Indeed, the parameters do not match exactly, however 5 of 6 quite close. I think you will agree that something about 15km distance is key for complete understanding. There is reason why it is mentioned in Боевое применение самолета Миг-29, and the fact is that curving in horizontal sections suggest something like that. Simply, over 15km in ZPS they are different. First graph is mine, calculation of trajectory with forced horizontal flight.
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Iteration is with following attempted logic: If the target is at distance less then 15km, fighter to be with extra speed of 50km/h. If the target is at distance over 15km, fighter to be with extra speed of 250km/h. In terminal points rocket is to be with extra velocity over target for 225m/s. First diagram is velocity over time, dashed lines are for 1100km/h plus extra as per attempted logic, others for 900km/h with extra as well. The one in middle is actually two profiles, since at 5km when target is with 900km/h then extra for fighter is 250km/h and when target is with 1100km/h extra for fighter is 50km/h what is 1150km/h in both cases. It is only up to 475 or 530m/s when counting stops. i58 in passive where 1,6 at 10km ; 1,52 at 5km and 1,45 at 1km. Second diagram is travel of rocket and target simultaneously, dashed lines again in cases of 1100km/h for target and fighter with extra speed provisions in launching for figher.
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This is second time that text were not uploaded with pictures Is it only me or others have/had same problems