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History of Soviet tanks


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#5421 Hakka

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Posted 11 September 2017 - 1635 PM

Does anyone have any info of this searchlight replacement?

 

PL-1-01 programmable laser projector with a pulse function. Being a laser projector rather than a regular xenon lamp, the PL-1-01 can illuminate targets much further away due to less scattering of light over distance and because the laser is projected in a much narrower beam than the IR light from a lamp, so according to the inverse-square law, the area illuminated is smaller but the light is much more intense. The pulse function improves light penetration into dense fog or haze by reducing backscatter. PL-1-01 is used on the BTR-82A and on the modernized BMP-2 and can be used as a laser rangefinder. It may be used in the same way on the modernized T-80 as well, assuming that the night sight has been replaced. No word on what the replacement sight is, though.



#5422 Panzermann

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Posted 11 September 2017 - 1819 PM

Depending on the frequency(-ies) the laser produces, it should be a direct replacement of the searchlight? So no need for a new IR sight?


Edited by Panzermann, 11 September 2017 - 1820 PM.


#5423 Simon Tan

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Posted 11 September 2017 - 1958 PM

Usable with standard image intensification.

#5424 Hakka

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Posted 11 September 2017 - 2238 PM

I meant that a new sight would be needed in order to use the rangefinder function.

#5425 Simon Tan

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Posted 12 September 2017 - 0348 AM

This is the IR searchlight. Straight LED IR laser diode array. Pointless trying to use it for rangefinding. Most LRF operate in the UV spectrum and not the IR spectrum.



#5426 Hakka

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Posted 12 September 2017 - 0403 AM

This is the IR searchlight. Straight LED IR laser diode array. Pointless trying to use it for rangefinding. Most LRF operate in the UV spectrum and not the IR spectrum.

 

Well, it's not the best rangefinder system, but it works. It's got a shorter measuring distance and bigger error margin compared to a bona fide laser rangefinder.



#5427 DKTanker

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Posted 12 September 2017 - 0909 AM

This is the IR searchlight. Straight LED IR laser diode array. Pointless trying to use it for rangefinding. Most LRF operate in the UV spectrum and not the IR spectrum.

I believe most military LRFs operate at > 700nm, which would put them well toward and into the IR spectrum.  Reason, the atmosphere is far more transparent to IR than UV.



#5428 demosthenes

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Posted 12 September 2017 - 1742 PM

The U.S T95 prototype had the OPTAR rangefinder which worked like that PL-1.



#5429 Przezdzieblo

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Posted 13 September 2017 - 1438 PM

Why? OPTAR was rangefinder, not searchlight.

 

 

 

Russian article about laser searchlights --> click



#5430 Wiedzmin

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Posted 17 September 2017 - 0705 AM

ikTwcZM.jpg

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bmp2 and brm-1k


Edited by Wiedzmin, 17 September 2017 - 0707 AM.


#5431 Dark_Falcon

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Posted 19 September 2017 - 0016 AM

A look at an uncovered ERA block of the kind we've seen covered in canvas on the side of Russian tanks:

 

DJXimnWWsAISOBo.jpg

 

And some covered blocked by way of comparison:

 

DJXhU28W4AAEXJk.jpg



#5432 Wiedzmin

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Posted 19 September 2017 - 1708 PM

uEcUnRLc78U.jpg

qdJpEoADgws.jpg

 

T-62M-1



#5433 Dark_Falcon

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Posted 19 September 2017 - 1838 PM

On its way to Syria, I presume?



#5434 Hakka

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Posted 19 September 2017 - 2157 PM

It should be possible to add K-1 on top of the "Brow" armor, right? I assume that it would be a rather simple modification, and it's really needed for the sides of the tank too.

#5435 Dreilide

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Posted Yesterday, 04:52 AM

T-55A receives thick antiradiation lining to driver's hatch, yet T-62 does not?

 

Also why is there a cut out of the antiradiation lining on the center roof of T-62?



#5436 KV7

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Posted Yesterday, 05:42 AM

It should be possible to add K-1 on top of the "Brow" armor, right? I assume that it would be a rather simple modification, and it's really needed for the sides of the tank too.

It surely is possible but unlikely to happen from past experience.



#5437 alejandro_

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Posted Yesterday, 11:11 AM

Wiedzmin, do you know where the photo was taken? It would be interesting to know where the T-62s are repaired/overhauled.



#5438 GARGEAN

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Posted Yesterday, 11:44 AM

It should be possible to add K-1 on top of the "Brow" armor, right? I assume that it would be a rather simple modification, and it's really needed for the sides of the tank too.

Biggest problem is weight. Brows already weigh pretty enough, adding full set of K1 would cost another couple of tonnes.

#5439 wlewisiii

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Posted Yesterday, 08:24 PM

So since there are no good books on the T-80 series, how good is the information at the Tankograd blog? Especially regarding the T-72 and T-80 models?

#5440 Hakka

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Posted Yesterday, 11:30 PM

So since there are no good books on the T-80 series, how good is the information at the Tankograd blog? Especially regarding the T-72 and T-80 models?


The T-72 article seems to be updated rather frequently, but not the T-80 one, which seems to be unusually short compared to the T-72 article.




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