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Everything posted by Gavrick

  1. Modelsvit Tu-91, 1/72. Work in progress, rebuilding cockpit:
  2. Dive brakes and trimmers on the right side of elevator linked by hydraulic line, an there is no valves in this hydraulic line. And electrical part of dive system - electromagnet and spring in the trimmer control - "blocked" with the bomb drop system, and can be turned off only with it. Do you have any document, mentioned that dive system is can be turned off some kind?
  3. You can not turn off dive system at Ju-87. Control key (LCtrl+D by default) used at Ju-88 and Pe-2. And contact altimeter is not connected with dive system, it is used only for sound warning.
  4. In game you can dive either with and without dive brakes. If you dive without dive brakes, you can engage dive system by press LCtrl+D (same key for recover).
  5. Yes. Trimmer set to "nose heavy". Or retract air brakes (at Ju-87). And... ...trimmer set back to default position, so airplane become "tail heavy" and it is help to recover from dive.
  6. Just release air brakes. And trim aircraft before dive.
  7. In manual mode water radiators can be fully opened or fully closed only.
  8. Thank you! Very interesting and useful.
  9. Please make new topic for "moon conspiracy" and other space things. It is interesting, but offtopic here.
  10. The first flight into space was the first orbital flight. Therefore, Gagarin was both the first man in space and the first in orbit. Flight of A. Shepard (second flight into space) was suborbital.
  11. Yes. In case of P-51 - 100% of fuel - wing tanks and fuselage tank are full. ~68% of fuel - fuselage tank is empty, wing tanks are full.
  12. When you fly below 3000 ft at combat or WEP mode, check throttle lever position and MAP. If you move throttle past take-off stop position, MAP more that 52 inch (or 64 at WEP mode). About critical altitude. From P-47D-28 model specification: Critical altitude is 24500 ft. Ingame - 23000 ft, 5% error. Not best result, but acceptable.
  13. It is good reference. Data from this report correlate well with data from "model specification" at 64 inch MAP (+-10 mph). Also it is corellate well with ingame P-47 at 52 inch MAP (ingame top speed 407 mph at 29500 feet and 410 from report). Probably. Ingame top speed is 700 kph TAS (485 IAS) at 7000m.
  14. In various tests from various references, the weight of the aircraft was mainly about 13,000 pounds. For example, from different references (from wwiiaircraftperformance): NACA stability and control tests of P-47D-30 - gross weight 12810 ... 11870 pounds, P-47D-10 43-75035 - 13244 pounds, P-47D 42-26167 - 13230 pounds, Comparison of P-47D-30, P-47M and P-47N Performance - 12731 pounds.
  15. With 8 guns and 50% fuel in simulator gross weight of P-47 is 13220 lb. It is near to gross weight from model specifications of P-47D-28 - 12958 lb - with 6 guns and 205 gals of fuel. If you chose this variant ingame (205 gals - 55%), you has gross weight 13025 lbs. The difference appears in general due to the fact that in the simulator only one version of the filling with oil (full tank). In reality, dressing with oil could also be partial. But 50% of the fuel and 8 machine guns - just easier to remember and advise to use.
  16. Reference for P-47D-28 top speed: Check top speed at standart atmosphere, +15C temperature and 760 mm.hg pressure AGL. In quick mission - on autumn maps. Airplane - 50% of fuel, 8 guns, standart ammunition. 64 inch MAP, 2700 rpm, auto rich mixture (80% of lever), cowl flaps and oil cooler flaps closed, intercooler flaps - neutral (50%).
  17. When you turn on water injection switch on throttle lever: - water solenoid valve opens, - water pressure actuaters boos re-set mechanism, which connected to turbosupercharger control unit (you can see at external wiev hov exhaust manifold wastegates moves), - mixture leaner valve opened. So, MAP increased by turbosupercharger, and it is not a bug. If you mean take-off stop - it is modelled. At ground level, with prop pitch control fully forward at 2700 rpm you has 52 inch manifold pressure at approx. 95% of throttle lever position - it is take-off stop position. At altitudes above ~3000ft. - you has 52 inch manifold pressure with all interconnected controls at prop pitch lever position according 2700 rpm (full forward).
  18. Here we mentioned the report, which says about the speed of 530 km / h at the ground and 610 at an altitude of 5800 m. Yes, we have this report. However, the notes in this report refer to the unsatisfactory quality of this particular aircraft (problems with cracking of the skin and paint, defects in the sealing of engine cowling are noted). At the same time, the characteristics of seven other serial aircraft significantly differ for the better (although they are not identical to each other). Therefore, in this case, averaging the characteristics, considering a deliberately defective aircraft - will not be a "gold middle". And the average characteristics of serial aircraft are directly given in the report, which I showed above.
  19. Seven aircraft, from May 1943 to December 1943.
  20. I'm afraid of upsetting someone, but the serial La-5FN in 1943 really had very good characteristics. Despite the numerous quality problems, it was a good aircraft with a good engine. For confirmation, I quote from the report on the testing of serial aircraft in 1943 year. I draw your attention, these were tests of serial aircraft, without any special modifications. The tests passed seven La-5 FN of different series, from May to December 1943. In general, the aircraft showed similar results: The maximum speed at the ground level is an average of 578 km / h. (from 570 to 587 km / h). In the simulator - 583 km / h, in the range. The maximum speed of 6 km is an average of 634 km / h (from 629 to 640 km / h). In the simulator - 646 km / h, only 1% faster. So in the simulator La-5FN speed it is quite consistent with the test data of serial aircraft.
  21. That is, even at high speed the plane could develop such a high g-overload that there was a risk of breaking the structure.
  22. This is wrong point of view. It is necessary to take into account all available sources, not one "convenient". Once again. http://www.spitfireperformance.com/x4922.html http://www.spitfireperformance.com/w3134.html http://www.spitfireperformance.com/aa873.html Different airplanes, but similar top speeds. So, this data and these speeds can be trusted. http://www.spitfireperformance.com/aa878.html Report with information about +16 mode. But, at the same altitude as the previous three aircraft ("reliable data"), this slower by about 12 mph. So, at the ground level should be the same thing - this airplane should be slower. If we extrapolate speed graph at +16 to ground level, we have near 315 mph. 315+12 = 327. In simulator - 331 (40% radiator). near 1.5% mistake. Lets take a look at this graph. http://www.wwiiaircraftperformance.org/Spitfire_V_Level_Speed_RAE.jpg This plane a bit slower, that first three, but not so much as previous aircraft. And this airplane has a smaller speed increase, that previous aircraft (36 m.p.h. and 28...32 m.p.h.). Because of these circumstances, we can lose 4...8 m.p.h., depending on how to evaluate. But okay, let's say that 317 miles per hour from the chart is an exact figure and comparable to the simulator. 4% mistake, under ideal conditions in simulator (In the simulator, the aircraft can ideally withstand course and altitude). And it is still less that permissible error of 5%. And do not forget that the +16 mode is not eternal. Three minutes later the brougham turns into a pumpkin. 2 min "cooldown" is an error, and should be fixed, of course.
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