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IDProjectCategoryView StatusDate SubmittedLast Update
0002587AFRF[All Projects] Generalpublic2016-08-18 04:432019-03-28 20:35
Reporterlolkij 
Assigned To 
PrioritynoneSeveritytweakReproducibilityalways
StatusnewResolutionopen 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Summary0002587: Кратность прицелов БМП/БМД
DescriptionКратность прицелов 1ПН22М2/БПК-2-42 несоответствует реальным ТТХ:
БМП-1/БМД-1: 5х вместо 6х
БМП-2/БМД-2: 5.6х вместо 6х
TagsNo tags attached.
Is it a wish/request?No
RHS version
Arma 3 version1.62
Did you used any other mod when the error occurred?No
Which mods?
Attached Files

- Relationships

-  Notes
(0005234)
reyhard (administrator)
2016-08-18 10:29

BMP-2 use for now BPK-1-42 (has 5.6 zoom) because I couldn't find reticle for BPK-2-42. there are few differences in look & magnification. maybe it will be added in the future
(0005238)
redux (reporter)
2016-08-18 16:57
edited on: 2016-10-19 23:19

"На бмп-2 с марта 1986 устанавливается прицел БПК-2-42 увеличение дневного кратн. 6, ночного - 5,5.
Отличие прицела БПК-2-42 от БПК-1-42:
- прицел БПК-2-42 имеет встроенную в окуляр дневной системы сетку, которая обеспечивает ведение стрельбы в случаи выхода из строя системы электропитания;
- дальномерная шкала рассчитана на высоту цели 2,2 м вместо 2.7 м;
- штрихи боковых поправок нанесены с интервалом 0-04 вместо 0-05."

(0009218)
Zampolit (reporter)
2019-03-28 14:44

https://4.bp.blogspot.com/-a0w6NBMSDic/WZh0zv0wDlI/AAAAAAAAJGE/bZTEH96bTQUX-CPh7Wf1YixW3p_FJRm1QCLcBGAs/s1600/sight.GIF [^]

"In March 1986, the BMP-2 was modernized into the BMP-2 obr. 1986. One of the upgrades was the replacement of the BPK-1-42 with the BPK-2-42. The most noticeable difference is the revision aiming reticl. The daytime sight channel was slightly improved with a fixed 6x magnification to extend the engagement envelope, and the nighttime channel was also slightly improved with a 5.5x magnification. The sight provides an angular field of view of 10° in the daytime channel and the 6°40′ in the night channel."

https://thesovietarmourblog.blogspot.com/2016/05/bmp-2.html [^]

@reyhard Maybee that will be helpfull.
(0009219)
reyhard (administrator)
2019-03-28 15:06

@Zampolit that pic shows BPK-1-42 reticle
(0009221)
Zampolit (reporter)
2019-03-28 15:51

@reyhard

BPK-1-42:
https://1.bp.blogspot.com/-myHK0tx7Jok/V1UXWbx8HmI/AAAAAAAAGqM/qJBqn4VESGMWDq9GigLuEG-C24LDx8qaACLcB/s1600/bpk-1-42%2Bsightpicture.png [^]

BPK-2-42:
https://4.bp.blogspot.com/-a0w6NBMSDic/WZh0zv0wDlI/AAAAAAAAJGE/bZTEH96bTQUX-CPh7Wf1YixW3p_FJRm1QCLcBGAs/s1600/sight.GIF [^]

According to article.
They seems to be a bit different.
In the game we have BPK-1-42 on all BMP-2 series.
https://steamuserimages-a.akamaihd.net/ugc/949586755961965951/7527084E7E700F8C2385B1D3C29CE280C8361C7F/ [^]
So, one way or another seems like we have some error in optics for BMP-2 series.
(0009222)
reyhard (administrator)
2019-03-28 16:16

http://ebooks.grsu.by/voen_podgotovka/tema-13-pritsely-pushki-bmp.htm [^]
you can verify it in some more articles if you are still convinced it's BPK-2-42 ;) That soviet armour blog is wrong there
(0009224)
Zampolit (reporter)
2019-03-28 17:24

@reyhard Yep, i've done some investigation and yes, seems like you are right.
But if this:
http://kivrag.ucoz.ru/_ph/5/2/560436963.jpg?1551641957 [^]
is BPK-1-42 then this:
https://steamuserimages-a.akamaihd.net/ugc/949586755961965951/7527084E7E700F8C2385B1D3C29CE280C8361C7F/ [^] is not BPK-1-42 but BPK-2-42 :)
For example on that slide: http://tir.moscow/images/33_ytr.jpg [^] (It's very weird, i know, but still) we can see that main axis and reticle elements are same.
So for BMP-2 (1980) and BMP-2D we need BPK-1-42 with a bit lower magnification "5.6x in the day channel, and a 5x magnification in the night channel" vs "6x magnification to extend the engagement envelope, and the nighttime channel was also slightly improved with a 5.5x magnification."

And on this screen seems like we have BPK-2-42 then: https://1.bp.blogspot.com/-myHK0tx7Jok/V1UXWbx8HmI/AAAAAAAAGqM/qJBqn4VESGMWDq9GigLuEG-C24LDx8qaACLcB/s1600/bpk-1-42%2Bsightpicture.png [^]

Cause as redux say, one of the differences beetween BPK-1-42 and BPK-2-42 was size of lateral correction scale (0-04 on BPK-2-42 and 0-05 on BPK-1-42). And on the reticle screen we clearly see that they are 0-04.
(0009225)
Zampolit (reporter)
2019-03-28 17:31

So, to conclude. For now we have a BPK-2-42 reticle on all BMP-2 series but with wrong day time magnification 5.6x (RHS) vs 6x (BPK-2-42).

And for BMP-2 (1980) and BMP-2D we need BPK-1-42 vs lower day time magnification 5.6x and different reticle ;)
(0009226)
redux (reporter)
2019-03-28 18:12
edited on: 2019-03-28 18:14

Normal reticle from A2 https://i.ytimg.com/vi/niq1_RK2fjA/maxresdefault.jpg [^]

(0009227)
reyhard (administrator)
2019-03-28 20:35

anyway, since I don't think I will have enough time to rescale all ranging marks, I guess magnification will stay this way till at least next year

- Issue History
Date Modified Username Field Change
2016-08-18 04:43 lolkij New Issue
2016-08-18 10:21 reyhard Severity major => tweak
2016-08-18 10:29 reyhard Note Added: 0005234
2016-08-18 16:47 redux Note Added: 0005237
2016-08-18 16:48 redux Note Edited: 0005237 View Revisions
2016-08-18 16:49 redux Note Deleted: 0005237
2016-08-18 16:57 redux Note Added: 0005238
2016-08-18 16:58 redux Note Edited: 0005238 View Revisions
2016-08-18 16:58 redux Note Edited: 0005238 View Revisions
2016-08-18 16:59 redux Note Edited: 0005238 View Revisions
2016-08-18 17:00 redux Note Edited: 0005238 View Revisions
2016-08-18 17:00 redux Note Edited: 0005238 View Revisions
2016-08-18 17:04 redux Note Edited: 0005238 View Revisions
2016-08-18 17:08 redux Note Edited: 0005238 View Revisions
2016-08-18 21:44 lolkij Description Updated View Revisions
2016-08-18 21:49 lolkij Description Updated View Revisions
2016-10-19 23:19 redux Note Edited: 0005238 View Revisions
2019-03-28 14:44 Zampolit Note Added: 0009218
2019-03-28 15:06 reyhard Note Added: 0009219
2019-03-28 15:51 Zampolit Note Added: 0009221
2019-03-28 16:16 reyhard Note Added: 0009222
2019-03-28 17:24 Zampolit Note Added: 0009224
2019-03-28 17:31 Zampolit Note Added: 0009225
2019-03-28 18:12 redux Note Added: 0009226
2019-03-28 18:14 redux Note Edited: 0009226 View Revisions
2019-03-28 18:14 redux Note Edited: 0009226 View Revisions
2019-03-28 20:35 reyhard Note Added: 0009227


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