Murey2 Posted October 7, 2019 Posted October 7, 2019 Hey. Lately I have been facing a little problem were I'm unable to uncage the Standby Attitude Indicator to maintain it's correct level reading the though out the whole flight. Here's what's happening: -When I auto start the Ka-50 the problem is there but when you land the SAI correct it self after a while from landing after some flying time. - If I start it manually the problem is there but doesn't correct it self as mentioned above! So, what am I missing here? Note: I did it according to the manual!
Murey2 Posted October 7, 2019 Author Posted October 7, 2019 (edited) Now I think I found the problem! I start the gunship in under 50 sec. fully! So the SAI need 1:30 min. to fully align. But also some mission like Beslen Takeoff. you need also to wait for that time for the alignment of the SAI even though that you start the mission with fully running gunship...! So that need fixing I think. Edited October 7, 2019 by Murey2
BranchPrediction Posted October 30, 2019 Posted October 30, 2019 Oh! You need to wait 1.30 minutess? I didnt know that, thank you.
ED Team BIGNEWY Posted November 1, 2019 ED Team Posted November 1, 2019 Hi if you have a short track replay showing the issue we will be happy to take a look thank you Forum rules - DCS Crashing? Try this first - Cleanup and Repair - Discord BIGNEWY#8703 - Youtube - Patch Status Windows 11, NVIDIA MSI RTX 3090, Intel® i9-10900K 3.70GHz, 5.30GHz Turbo, Corsair Hydro Series H150i Pro, 64GB DDR @3200, ASUS ROG Strix Z490-F Gaming, PIMAX Crystal
Murey2 Posted November 21, 2019 Author Posted November 21, 2019 (edited) Hi if you have a short track replay showing the issue we will be happy to take a look thank you It took me about 2 hours trying to repeat it now I think I know whats wrong. If you pullback on the stick to put the helo in near hover before accelerating forword it happen (While takeoff). https://send.firefox.com/download/4c36426614d312c3/#1o4IOx7auOkaaxM_zI3Ytw Edited November 21, 2019 by Murey2
ED Team BIGNEWY Posted November 22, 2019 ED Team Posted November 22, 2019 (edited) Hi thank you for the data We have this reported it seems SAI drift is to high currently. thank you Edited November 25, 2019 by BIGNEWY Forum rules - DCS Crashing? Try this first - Cleanup and Repair - Discord BIGNEWY#8703 - Youtube - Patch Status Windows 11, NVIDIA MSI RTX 3090, Intel® i9-10900K 3.70GHz, 5.30GHz Turbo, Corsair Hydro Series H150i Pro, 64GB DDR @3200, ASUS ROG Strix Z490-F Gaming, PIMAX Crystal
Hunter_5E Posted January 27, 2020 Posted January 27, 2020 (edited) Hi thank you for the data We have this reported it seems SAI drift is to high currently. thank you I would go so far as to say the drift is very much excessive. Every flight I've ever made in the KA-50, the SAI is completely out of whack in under 5 mins, and that's with just normal smooth and gentle flight, no fancy flying or hard acceleration. That's also with plenty time for it to align itself before take-off. The manual does state that "The gyros drift ranges from 0 to 5 degrees per minute." but surely it shouldn't end up almost upside down in under 5 mins of smooth and gentle flight? Realistically it should remain stable for long enough to actually be used in an emergency, whereas currently is certainly doesn't inspire any confidence at all and would be useless in an emergency. I've just been reading the following article https://www.aopa.org/training-and-safety/students/presolo/special/understanding-gyroscopic-instruments and was interested by the following paragraph pertaining to weights added to AI gyros. ------------------------------------------------------------ "Gyro instruments react to short-term movements of the airplane. In fact, the attitude indicator contains a set of weights intended to drive the instrument toward level flight by sensing gravity. These weights move the instrument face about 3 degrees per minute. So if you were to maintain a 30-degree coordinated banked turn for 10 minutes, you would look down to see the AI indicating level flight. Likewise, the heading indicator will succumb to precession, moving from the set magnetic heading over time. That's why you should periodically check it against the wet compass to make sure you're still on track." ------------------------------------------------------------- Is this a standard for all AI gyro systems? Does the KA-50 SAI have such weights? I find it surprising that in WW2 pilots managed to fly thousands of miles at night, relying on a gyroscopic attitude indicator, apparently without problems - yet the KA-50 SAI can't last 5 mins without going completely nuts. I assume WW2 pilots would have had to periodically verify and possibly adjust their AI's but surely not every 5 mins? This isn't a rant by the way, just genuinely curious and wanting to know more about why it does what it does. Edited January 27, 2020 by Hunter_5E
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