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IAmNotARobot

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About IAmNotARobot

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  1. If you'll find original RAF (or someones else) research or test results it would be really cool and valuable. Don't know why, but is not that easy to find some aerodynamic researches and fly tests despite the popularity of this plane, the soviet data is the only reliable source of information on this problem that we have. Thanks for assistance by the way!
  2. No mantion of servo disconnection in soviet reserch and any in other soviet Me262 manuals and discriptions that we have. On the contrary, they says that elevators have that servocompensation.
  3. The reference is: "О потере продольной управляемости самолета при больших скоростях полета", Г. С. Калачев,1946 г. It is a soviet post-war aerodynamic research of high Mach influence on aircrafts controlability, so I trust in it with full confidence.
  4. I know how they works, thanks.
  5. We simulated slats exactly that way. Incoming dynamic pressure can be much more expressed then aerodynamic sucktion force and g-force influence, that prevents slats to extend in higher speed.
  6. All the references says that slats retracts at the speeds under 450-475 km/h no matter are you gliding or not. No mentions of high speeds extension. If you have any info about it we will tune its behavior. In lower speeds slats simulation takes into account local g-force, dynamic pressure and AoA, so you can by sure it is not just a script. About pitch authority. We have a reference that pilot has to pull the stick with the force under 28 kg to achieve 3G on 3000m and EAS 800 km/h (not TAS) with adjustable stabilizer set so that horizontal flight (1G) takes 15 kg pushing force on stick. Creation of one more G requires 21.5 kg of pulling power: (28[kg] - (-15[kg]))/(3[G] - 1 [G]) = 21.5 [kg / G]. Considering that max pulling power with two hands can be something under 75 kg you can calculate max achievable G on 3000m and EAS 800 km/h - it equals 5.1 G. Anfortunetally there was no weight of plane in this reference (and as I said before the planes FM is really sensitive to loading configuration), so we tuned FM in a way to achieve described behavior with no weapon modes, 50% fuel and full ammunition.
  7. Plane has low stability in rudder channel because of swept wing design, not a bug)
  8. Try it after hotfix, thanks everybody for your attention, there was a bug in release build with elevator chennel indeed. Check the plane in different loading configurations and you will by surprised how Me262 changes its behaviour depends on position of center of gravity.
  9. I understand that completely. GGS IID has exactly that behavior because of constructional addition - two connected windings circuited to power supply through potentiometer. K-14D has pretty much the same construction but this feature is not activated intentionally because of some reason. I think in combat it's not really helpful if you'r not in a straight flight or in bank turn. Also pilots can use gyro reticle without gravity drop correction as angular velocity sensor. Anyway, the engineers and developers of K-14D decided to deactivate this feature - that is for sure. And what about Ez 42? His elevation and azimuth channels are identical (man, just look at the pictures), adjustment box makes same correction in both channels, no special electro-mechanic that can calculate vertical shift in elevation channel. You can't have different reaction on equal input in the same systems. If you heard somewhere about gravity drop correction in this particular sight, then most likely you was misinformed. The documentation says opposite.
  10. I have read this translated handbook (many thanks for it, saved a lot of time to read in English!!) and let me be clear about my concerns. If something looks simple and understandable on the paper (like bullet drop calculation based on range and altitude) doesn't mean it's simple to implement in hardware, especially with WWII technological level. Mirror inside Ez 42 is governed by two independent servomotors. If you look at another scheme you'll see that azimuth and elevation channels are completely the same, the only difference is orientation of angular velocity sensors. If this scheme allowed some kind of gravity drop azimuth shift you'd see symmetrical shift in elevation channel (which is totally illogical). So what adjustment box is needed for? I modeled this resistors assembly (with ability to replicate pilots input) and made some conclusions. This box applies correction on bullet fly time based on various air density (function of altitude) and ballistic properties of bullet. Your projectile will hit your target sooner on higher altitude, so you have to choose less angular deflection, but still you need to add some vertical correction based on bullet drop. However, I'am still opened to discussion.
  11. Ez 42 has absolutely different construction with two independent angular velocity gyroscopic sensors and it worked in different way (no Lorentz force black magic and stuff like that)). I tried to find constructive part that realized gravity drop correction, but as for me Ez 42 had no such feature. Also, there is no text evidence or reference on gravity drop correction in its handbook. If you have different data I will be really glad to dig into it.
  12. "Gravity drop" winding are named "Gravity" and "Elevation" windings in american version (because they are not connected at all). As you can see on the scheme we posted before they are are not under power supply so they can do nothing. Anyway thees windings are still inside gyro-magnetic assembly and what is really important their magnetic cores are still affecting on gyro because of range winding induction. Thank you for your docs, thay are really that we were looking for while GGS IID development, will be helpfull in the future to implement gravity drop correction in this gyrosight.
  13. Yes, only 6 of 10 pins are connected. Actually only range coils are working (elevation coil is short-circuited). You can read how range coils are affecting on gyro in ours 196 developers diary.
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