Golo Posted March 15, 2016 Share Posted March 15, 2016 Small bug with indication of JPT -REG. TEST procedure. As of now positioning JPT -REG. TEST switch to position I and II will illuminate JPT 700°C lamp in both C and ZA. According to the manuals JPT -REG. TEST switch in position II should illuminate JPT 730°C lamp. Link to comment Share on other sites More sharing options...
gulredrel Posted February 10, 2019 Share Posted February 10, 2019 *bump* found this thread cause I noticed this too today. Still an issue in 2.5.4 stable branch, so topic could be moved to bug section. Link to comment Share on other sites More sharing options...
msalama Posted February 11, 2019 Share Posted February 11, 2019 Been broken for ages, still broken in the latest OB too. The DCS Mi-8MTV2. The best aviational BBW experience you could ever dream of. Link to comment Share on other sites More sharing options...
tsb47 Posted April 25, 2019 Share Posted April 25, 2019 Just tested and this is still an issue Windows 7 Enterprise 64bit | i7-4790K@4GHz | 8GB RAM | GTX970 347.52 Link to comment Share on other sites More sharing options...
JG14_Smil Posted April 25, 2019 Share Posted April 25, 2019 You know, it is probably just a simple copy/paste error they missed when coding. I tried looking, with no luck, but maybe if we submit a proper bug fix request and support it, it can be fixed. It is a lot of work building those lamps and I would love it if they all worked correctly. :) Link to comment Share on other sites More sharing options...
msalama Posted April 27, 2019 Share Posted April 27, 2019 (edited) Or WTF, maybe this particular batch of machines had the upper annunciator disabled and only used the lower bulb for both. The thing is, you don't know one way or another - well unless you happen to own a RL example and are very well versed with all the RL mods and subtypes and what have you ;) EDIT: And yet, it most likely is an ED bug that's been there for ages already... Edited April 27, 2019 by msalama The DCS Mi-8MTV2. The best aviational BBW experience you could ever dream of. Link to comment Share on other sites More sharing options...
JG14_Smil Posted April 28, 2019 Share Posted April 28, 2019 so WTF? I get it, no more trying to get bugs fixed. Link to comment Share on other sites More sharing options...
msalama Posted April 29, 2019 Share Posted April 29, 2019 (edited) No, of course it should be fixed, was just flapping my lips. IIRC the release version of the module had it right, but the next patch broke it already and it has been broken ever since. Edited April 29, 2019 by msalama The DCS Mi-8MTV2. The best aviational BBW experience you could ever dream of. Link to comment Share on other sites More sharing options...
303_Kermit Posted November 3, 2020 Share Posted November 3, 2020 Hallo First - thanks for these awsome plane. Second - bug(s) report: According to L39C manual: "The spring-loaded RT-12 JPT regulator test switch (JPT REG TEST), located on the right panel in the front cockpit, is intended to check system functionality when the engine is not running. It is necessary to press and hold the switch in position I and check if the J.P.T. 700°С warning light is on, indicating normal system operation. Repeat the same for position II – the J.P.T. 730°С indicator will come on" 1. The swich isn't spring loaded as for example "Fire Sig. Test" swich ist. Can you check these please? 2. As it stayes in Manual - Pos "I" - shall trigger 700°C warning light, the second position "II" of these swich shall trigger J.P.T. 730°C warning light - but its not the case. In both positions the swich triggers the same: 700°C warning light. With my best regards Kermit PS. I hope that I placed my thread in correct section. Link to comment Share on other sites More sharing options...
303_Kermit Posted December 18, 2020 Share Posted December 18, 2020 Quite annoying bug actually. Also the switch shall be "spring loaded" Link to comment Share on other sites More sharing options...
msalama Posted December 18, 2020 Share Posted December 18, 2020 Yeah, still broken the last I checked. Kind of does not increase your confidence in their ever fixing any of these, TBH. The DCS Mi-8MTV2. The best aviational BBW experience you could ever dream of. Link to comment Share on other sites More sharing options...
Raphy Posted April 30, 2021 Share Posted April 30, 2021 I agree this would be great to have this fixed, also don't know if this is a bug but putting the JPT REG Test on position II after startup stopped the engine for me and my friend. I think I remember I read that it is not recommended to use it after engine start as it interferes with the fuel shutoff valve or something, but why would only the button II stop the engine then and not both? Again, maybe this is accurate but I was curious about why exactly it behaves that way. Link to comment Share on other sites More sharing options...
Golo Posted May 7, 2021 Author Share Posted May 7, 2021 On 4/30/2021 at 6:16 PM, Raphy said: I agree this would be great to have this fixed, also don't know if this is a bug but putting the JPT REG Test on position II after startup stopped the engine for me and my friend. I think I remember I read that it is not recommended to use it after engine start as it interferes with the fuel shutoff valve or something, but why would only the button II stop the engine then and not both? Again, maybe this is accurate but I was curious about why exactly it behaves that way. With the WOW increasing the engine temperature to 700°C (actually 685°C+-15°C) will only cause fuel regulator to limit fuel supply to limit engine over temperature. But if temperature rises to 730°C (actually 715°C+-15°C) with WOW fuel shut off valve will close causing engine to shut down. If in air only warning light will illuminate without engine shut down, that will only happen after landing with WOW automatically. Now I am not sure if the test switches actually energize whole limiting system or just the C/W lights. If they energize whole system then only test pos. II would close the fuel valve and shut the engine down. 1 Link to comment Share on other sites More sharing options...
virgo47 Posted August 7, 2022 Share Posted August 7, 2022 (edited) It's a silly test, nothing critical, but it bothers me as well. Probably easy to fix the lights - and this would be the best part of the fix. The test switch change to spring-loaded would require removing the OFF binding as well. Too bad this has probably no priority. But it would make the plane virtually perfect (in the scope it is modeled)! Edited August 7, 2022 by virgo47 1 L-39, F-5E, F/A-18C, MiG-15, F-86F, C-101, FC3 Yak-52, P-47, Spitfire UH-1H, Ka-50 III NTTR, PG, SY, Chnl, Norm2 Supercarrier, NS430, WWII VKB STECS+Gladiator/Kosmosima+TPR DCS Unscripted YouTube "Favourite" bugs: 1) gates not growing regress, 2) L-39 target size cockpit animation regress, 3) Yak-52 toggles not toggling, 4) all Caucasus ATC bugs Link to comment Share on other sites More sharing options...
Flappie Posted August 10, 2022 Share Posted August 10, 2022 Thanks for the heads up. Both issues are now reported. 1 Don't accept indie game testing requests from friends in Discord. Ever. Link to comment Share on other sites More sharing options...
virgo47 Posted April 12 Share Posted April 12 (edited) I originally thought that JPT Reg Test II should light up 730°C and the switch does not work correctly. However, lately I was reading operation manual to AI-25TL engine and it indicates some differences depending on the WOW switch. Now I don't claim to understand everything properly, but I'm now prone to believe the implementation in the module is good: On the ground, for the position II, the system only lights up 700°C and stops the engine. In the air the engine is not stopped, but 730°C warning is lit up - and stays so until fixed by the ground crew. The sections from the engine manual are (LIMITATION mode is tested by position I, SHUTDOWN mode is position II): And a bit later: L-39 module really does NOT shut down the engine in the air, light stays on, I just don't know how that shutdown on the ground works and what exactly is "soon after" regarding "the nose wheel comes in contact with the ground". I landed with the light on (after flipping the switch to II in-flight) and it doesn't want to stop "by electrical means". Reading the manual p83-84 actually checks with the engine manual, so I'd say the lamps 700/730 work fine, there is an obvious power limitation in flight when the JPT regulator engages (be it for EGT or because of the TEST II position)... the only thing I'm still waiting for is that engine shutdown on the ground. But I'd argue that the section on manual p85 is not correct (emphasis mine): Quote The spring-loaded RT-12 JPT regulator test switch (JPT REG TEST), located on the right panel in the front cockpit, is intended to check system functionality when the engine is not running. It is necessary to press and hold the switch in position I and check if the J.P.T. 700°С warning light is on, indicating normal system operation. Repeat the same for position II – the J.P.T. 730°С indicator will come on. It is not recommended to toggle this switch after engine start, because it enables the fuel limiting valve. I don't know whether the real switch is or is not spring-loaded, but the switch will not show 730 on-ground. The last sentence could also clearly state that the engine will be shut down on the ground, the fuel limiting valve is relevant for flight. Edited April 12 by virgo47 L-39, F-5E, F/A-18C, MiG-15, F-86F, C-101, FC3 Yak-52, P-47, Spitfire UH-1H, Ka-50 III NTTR, PG, SY, Chnl, Norm2 Supercarrier, NS430, WWII VKB STECS+Gladiator/Kosmosima+TPR DCS Unscripted YouTube "Favourite" bugs: 1) gates not growing regress, 2) L-39 target size cockpit animation regress, 3) Yak-52 toggles not toggling, 4) all Caucasus ATC bugs Link to comment Share on other sites More sharing options...
virgo47 Posted April 12 Share Posted April 12 (edited) I don't think that 730 should be shown on the ground and it is correctly shown in the air. See my comment here: Funny enough, I wasn't able to absorb it from the manual during first few reads, but the Engine Overheat Protection System describes it just fine (p83-84), and JPT Reg test I and II follow these conditions. Perhaps the threads could be merged. I see only one discrepancy - the engine doesn't stop after landing when 730 lamp is on. Edited April 12 by virgo47 L-39, F-5E, F/A-18C, MiG-15, F-86F, C-101, FC3 Yak-52, P-47, Spitfire UH-1H, Ka-50 III NTTR, PG, SY, Chnl, Norm2 Supercarrier, NS430, WWII VKB STECS+Gladiator/Kosmosima+TPR DCS Unscripted YouTube "Favourite" bugs: 1) gates not growing regress, 2) L-39 target size cockpit animation regress, 3) Yak-52 toggles not toggling, 4) all Caucasus ATC bugs Link to comment Share on other sites More sharing options...
Flappie Posted May 6 Share Posted May 6 (edited) Here's an excerpt from the official Aero L-39 flight manual (rule 1.16 compliant): Source: https://ninelima.org/poh/L39/Aero-L-39-Flight-Manual.pdf (page 32) Official manuals of the engine and of the aircraft don't agree. We have a problem. I'm pretty sure it's a typing error in the engine manual, but we need proof. Edited May 6 by Flappie 1 Don't accept indie game testing requests from friends in Discord. Ever. Link to comment Share on other sites More sharing options...
virgo47 Posted May 6 Share Posted May 6 (edited) That sounds pretty clear then... although so does the engine manual I mentioned, so there seems to be some contradiction on the ground (not in flight). God knows how and why it was implemented originally, whether intentional or not - perhaps there are some comments in the code. In any case, there is a discrepancy between the module behavior and the manual. And the engine does not stop after touchdown with 730 light on. Edited May 6 by virgo47 L-39, F-5E, F/A-18C, MiG-15, F-86F, C-101, FC3 Yak-52, P-47, Spitfire UH-1H, Ka-50 III NTTR, PG, SY, Chnl, Norm2 Supercarrier, NS430, WWII VKB STECS+Gladiator/Kosmosima+TPR DCS Unscripted YouTube "Favourite" bugs: 1) gates not growing regress, 2) L-39 target size cockpit animation regress, 3) Yak-52 toggles not toggling, 4) all Caucasus ATC bugs Link to comment Share on other sites More sharing options...
virgo47 Posted May 6 Share Posted May 6 (edited) @Flappie Just to add one more source, taken from 1991/1992 Flight Manual L-39C Serial No 931529, I've got just some pure-image scan PDF without page indication (p31 in reader): Arguably, it's not totally clear and as a programmer I'd have a few questions about it, just to be sure. (This is a slightly modified L-39C judging from the pictures, e.g. knots instead of km/h speed indicator, but the changes are minimal, no changes in warning/caution lights, and I doubt this affects how this engine-related mechanism works.) Now, again, it can be an error from some other sources, but it really made me thinking what sources were used for the original implementation. Again, the nosewheel and engine shutdown with 730 light is also mentioned, currently not implemented. Edited May 6 by virgo47 1 L-39, F-5E, F/A-18C, MiG-15, F-86F, C-101, FC3 Yak-52, P-47, Spitfire UH-1H, Ka-50 III NTTR, PG, SY, Chnl, Norm2 Supercarrier, NS430, WWII VKB STECS+Gladiator/Kosmosima+TPR DCS Unscripted YouTube "Favourite" bugs: 1) gates not growing regress, 2) L-39 target size cockpit animation regress, 3) Yak-52 toggles not toggling, 4) all Caucasus ATC bugs Link to comment Share on other sites More sharing options...
Flappie Posted May 6 Share Posted May 6 7 hours ago, virgo47 said: @Flappie Just to add one more source of confusion Fixed that for you. I think now we can safely say that the two manuals you posted excerpts from are correct. So the module is correct, and the manual is not. Right? Don't accept indie game testing requests from friends in Discord. Ever. Link to comment Share on other sites More sharing options...
virgo47 Posted May 6 Share Posted May 6 2 hours ago, Flappie said: I think now we can safely say that the two manuals you posted excerpts from are correct. So the module is correct, and the manual is not. Right? I don't own L-39C to test it myself. I know the knowledge can get lost - I'm not sure if the team still has the SMEs that worked on this or, ideally, notes in the code. I nearly asked on Matt Guthmiller's YouTube channel about it, but it felt a bit silly really (what if it broke one of his L-39 for whatever reason). But if you/the team can't get non-contradictory sources, I believe most people would be just as happy if it is fixed in the manual. L-39, F-5E, F/A-18C, MiG-15, F-86F, C-101, FC3 Yak-52, P-47, Spitfire UH-1H, Ka-50 III NTTR, PG, SY, Chnl, Norm2 Supercarrier, NS430, WWII VKB STECS+Gladiator/Kosmosima+TPR DCS Unscripted YouTube "Favourite" bugs: 1) gates not growing regress, 2) L-39 target size cockpit animation regress, 3) Yak-52 toggles not toggling, 4) all Caucasus ATC bugs Link to comment Share on other sites More sharing options...
Flappie Posted May 6 Share Posted May 6 42 minutes ago, virgo47 said: But if you/the team can't get non-contradictory sources, I believe most people would be just as happy if it is fixed in the manual. That is the opinion I expressed earlier today in the internal report, and I guess devs will agree. 1 1 Don't accept indie game testing requests from friends in Discord. Ever. Link to comment Share on other sites More sharing options...
ED Team BIGNEWY Posted May 14 ED Team Share Posted May 14 posts merged 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, HP Reverb G2 Link to comment Share on other sites More sharing options...
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