Art-J Posted July 29, 2016 Posted July 29, 2016 Good evening Gents. I've noticed in the bugtracker, that an issue No. 249 (ASP pipper movement in Gyro mode being affected by wind direction) has been marked two weeks ago as fixed and awaiting implementation in the "next patch". Recent changelog notes for both 1.5.4 and 2.0.3 also indicated "ASP Reticle offset fix for windy conditions", which I thought applied to this fix. However, tests in both latest version show that the bug is still present. Question to devs - does it mean that internal binaries with the fix just haven't made it yet to the latest updates, or they were supposed to be implemented (hence the changelog) but for some reason didn't? Cheers. i7 9700K @ stock speed, single GTX1070, 32 gigs of RAM, TH Warthog, MFG Crosswind, Win10.
Frederf Posted July 29, 2016 Posted July 29, 2016 Removing the wind bug doesn't necessarily mean that the pipper will not have some lateral displacement. The pipper should drift downwind in aerial rockets config or less/not-at-all in aerial guns config.
Art-J Posted July 29, 2016 Author Posted July 29, 2016 That's the point - if it's a simple gyro gunsight (which I believe it is, in its basic principle of operation - similar to turn indicator), then it shouldn't - no angular change of direction around vertical axis -> no moment acting on gyro rotor gimbal -> no rate of turn sensed -> no pipper drift. Anyway, after next short test, I've noticed that the sight in 1.5.4 and 2.0.3 isn't working the same anyway: a) in 1.5.4 there's no drift in guns mode (so there's some fix indeed after all, sorry I haven't noticed it before creating a thread!) while there is one in any other mode; b) in 2.0.3 there's always drift in all modes. I presume then it's still part of the WIP aspects of gunsight operation and we'll see next improvements later. If that's the case, though, the reported issue in bugtracker cannot be considered 100% "fixed", at least for now. i7 9700K @ stock speed, single GTX1070, 32 gigs of RAM, TH Warthog, MFG Crosswind, Win10.
Frederf Posted July 30, 2016 Posted July 30, 2016 It's not a simple gyro sight. It uses the alpha and beta vanes on the AOA probe, at least for aerial rockets (maybe less or none for cannon). There are horizontal and vertical bias EM coils on the mirror and I'm not sure when or how signals are applied. It is a mistake to underestimate the complexity of the sight. This does not mean I am arguing that everything is fine now. User "finger" seems to know it very well. Obviously the real test is that the bullets go where the pipper is. The genuine article would not be accepted for use if it did not adequately predict bullet path within the operational conditions. Comprehensive change is needed for the ASP. It is not too useful to talk about what color to paint a house which does not have a suitable foundation.
ФрогФут Posted July 30, 2016 Posted July 30, 2016 (edited) It's not a simple gyro sight. It uses the alpha and beta vanes on the AOA probe, at least for aerial rockets (maybe less or none for cannon). There are horizontal and vertical bias EM coils on the mirror and I'm not sure when or how signals are applied. It is a mistake to underestimate the complexity of the sight. This does not mean I am arguing that everything is fine now. User "finger" seems to know it very well. Obviously the real test is that the bullets go where the pipper is. The genuine article would not be accepted for use if it did not adequately predict bullet path within the operational conditions. Comprehensive change is needed for the ASP. It is not too useful to talk about what color to paint a house which does not have a suitable foundation. Alfa and beta are aerodynamic angles. They know nothing of wind. To calculate the wind you need air speed and ground speed. Edited July 30, 2016 by ФрогФут "Я ошеломлён, но думаю об этом другими словами", - некий гражданин Ноет котик, ноет кротик, Ноет в небе самолетик, Ноют клумбы и кусты - Ноют все. Поной и ты.
Art-J Posted July 30, 2016 Author Posted July 30, 2016 It's not a simple gyro sight. It uses the alpha and beta vanes on the AOA probe, at least for aerial rockets (maybe less or none for cannon). There are horizontal and vertical bias EM coils on the mirror and I'm not sure when or how signals are applied. It is a mistake to underestimate the complexity of the sight. This does not mean I am arguing that everything is fine now. User "finger" seems to know it very well. Obviously the real test is that the bullets go where the pipper is. The genuine article would not be accepted for use if it did not adequately predict bullet path within the operational conditions. Comprehensive change is needed for the ASP. It is not too useful to talk about what color to paint a house which does not have a suitable foundation. Roger that, today I've indeed noticed a mention about the vanes in the manual, so looks like there's a bit more to it than gyro rotor only. But even so, with the plane moving relative to the mass of air, the vanes would work exactly the same whether the mass itself moves relative to the ground or not. I'd hazard a guess the behaviour is a partial leftover from CCIP implementation (just like the whole bombing mode still is) and with different functionality in both 1.5.4. and 2.0.3 You're right the whole thing is still too much WIP to investigate. i7 9700K @ stock speed, single GTX1070, 32 gigs of RAM, TH Warthog, MFG Crosswind, Win10.
Frederf Posted July 30, 2016 Posted July 30, 2016 I'm not meaning to argue that alpha, beta make the sight do funny drift just that it is more complex than a simple gyro system. I wish I understood it fully to describe it in infinite detail with complete confidence. I want to look through the Ru side of this forum before try to organize an overview.
Recommended Posts