Hello everyone
I love playing with the Il-28 especially in ARB and Air simulator, and when playing with it, I prefer by much try to land in a more difficult but “realistic” way, so with landing gears…
From the previous update I noted how it has become pretty impossible to land in that way with the Il-28, due to the landing gears that require more than 40 seconds to be completely deployed, against the about 10 seconds before the last big update.
I don’t know the real time an Il-28 would deploy its landing gears but I don’t think that an early Cold War bomber require more time to do it than a pre-war biplane…
How this problem can be solved?
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If you think it is a bug, you can report it on the bug report website Community Bug Reporting System
Alredy looked on the bug report site where other people already noted the issue…
also it doesn’t look like a bug
It’s annoying but realistic: “The Il-28 had pneumatically-actuated tricycle landing gear, with the dual wheel nose gear retracting backward, and the single-wheel main gear retracting forward and turning 90 degrees to lie flat in the engine nacelles”
https://www.airvectors.net/avil28.html
Basically (i think) it was slow in order to turn around and fit right in with out damaging the early 50’s engines
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40s is what you would expect from hand cranked undercarriage such as used in the B2FC and F3F in the US tree, or the emergency operation available in many War time fighters and bombers.
There are videos on YT that show the Il-28 on take off and although slow by modern standards the retraction sequence does indeed appear to be in the region of 10s from first movement to doors closed.
Not seen a lowering but there’s no reason to suspect it would be significantly slower, in fact likely a little quicker with gravity assistance.
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Yeah noticed this when I landed doing my normal procedure and BAM… landing gear crushed… huh? Next time I flew I watched the landing gear doing it’s “1 frame per second” equivalent of deploying…
I know they don’t note all changes in patch notes, but going from 10ish seconds to 40+ seconds is a significant difference. It should have been noted as a change due to a report, but instead the bug report site is saying it’s not a bug and people have to provide sources showing the 40 seconds isn’t a bug…
So it looks like it’s going to stay that way. Which is fine if it was that in real life – just provide a patch note change saying so.
I find though you can start deploying much higher than landing gear rip speed, as long as you’re in the process of slowing down so that you’ll be below rip speed by the time they get mostly deployed. (I’m not sure at what point exactly in the deployment it considers to be down enough for rip speed to apply).
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I don’t think that 40+ seconds to deploy landing gear is realistic even for early cold war jet. It looks more like emergency handcranking. I mean, take Tu-14T for comparison, it was created as a competitor to Il-28, yet it has much faster landing gear deployment, where method of deployment is exactly the same (gear turns 90 degrees and hides in engine nacelles), likely using same, pneumatic system.
I found some Il-28 instruction manual, maybe someone proficient in russian could help us read through it and see if landing gear deployment speed is mentioned anywhere.
I tried searching in russian part of internet (with help of translator of course, my russian is terrible), but couldn’t find anywhere mention about how long it takes to deploy landing gear.
My guess is we could also try to locate and contact a museum that has one of Il-28s and ask if they have knowledge on this technical detail.
Edit: updated link to PDF as old one expired. Also purchased a book on IL-28 published by Polish Ministry Of Defence in 1970s, maybe it will contain some info.
Edit2:
There is an extensive technical document in russian, it was found by @LuftMaus from polish part of community.
Also mention about upgrade of Il-28R landing gear deployment to hydraulic system, where deployment took up to 8 seconds, info found by @superbuster11 from polish part of our community.
Edit3:
Document found by LuftMaus states that clearing of landing gear takes ~20-35 seconds depending on aircraft speed. Would be cool if someone profficient in russian could actually confirm this.
It’s page 233 of PDF or 203 of the book itself.
Same page states that emergency landing gear deployment should take between 5 and 30 seconds if google translated it well.
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I made a bug report, as said technical manual should be treated as primary source.
Deployment time should be between 15 and 25 seconds depending on aircraft speed and cylinder pressure.
Retraction time should be between 20 and 35 seconds. Currently both take 45 seconds, which is incorrect.
Also created a bug report about lack of ejection seats for pilot and navigator.
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Early Soviet jets had manually operated landing gear, requiring the pilot to crank the handle dozens of times,and that was an incredibly laborious task. It wasn’t until hydraulic systems were developed that the slow retraction and extension speeds of the landing gear were addressed.
Gaijin may have used data from early variants of these Soviet aircraft for the game, without considering the modifications made to later variants of some models, such as improvements to the aircraft’s systems.
IL-28 used pneumatic system to deploy/retract gear, even emergency gear deployment was done via pneumatic system.
IL-28R seen change to hydraulic system, which brought the 8 second deployment time, which is twice or thrice as fast as original pneumatic system offered.
Bug report I made includes primary source, that is technical documentation of IL-28 published by Ministry of Defence of Soviet Union (1954).
Currently I am going to search data on differences between Harbin H-5 and IL-28, as these two were not exactly the same. Main most visible feature was rear barbette from H-6 (Tu-16) rather than IL-28. There was also weight difference of about 100kg, however I need to find more sources of data.
Added bug report on H-5 barbette being incorrect, as well as it’s defensive guns being wrong model (are NR-23, should be AM-23 [chinese designation Type 23-2]), which makes difference of firerate, ammo storage and muzzle velocity. It’s based on secondary sources (included 3).
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Ok so I’m bringing back the argument because after 3 moths it hasn’t been resolved yet, with the Il-28 and all its variants taking exactly 40 seconds to fully close its landing gears and a even worst 45 seconds to be fully deployed, wich even goes against the rip off speed and the “style of playing” of the plane (bombs bases and return to base) (its now pretty impossible to reach the friendly airport intact without being reached by enemy fighters).
@MorkoKaiser thank you so much for your research wich proved our point!
Hasn’t been resolved, but accepted as a bug ;) I guess it will be fixed in upcoming update.
It’s not only my effort, I was the one to write the bug only. It’s all thanks to @LuftMaus who found the documentation and additional info provided by @superbuster11, both who are from polish community ;)
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