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Author Topic: Sukhoi Su-24 Avionics  (Read 14736 times)

Offline PaulMM (Overscan)

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Sukhoi Su-24 Avionics
« on: January 03, 2006, 11:46:15 am »
Thread for Su-24 Avionics discussion
« Last Edit: April 14, 2014, 10:44:45 pm by PaulMM (Overscan) »
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Offline PaulMM (Overscan)

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Re: Sukhoi Su-24 Avionics
« Reply #1 on: January 03, 2006, 11:49:28 am »
Main points about Orion-A:

Different mapping modes available.

RPO-B

25, 75 and 150km; standard mapping modes, metric or centimetric, coverage was 80 degrees. Large ships could be detected at 150km. Less accurate than RPO-A but longer range.

RPO-A
10km: MPO mode
5km: MPP mode

It appears that these two modes used millimetric radar, presumably from the Relyief radar, to achieve high resolutions.

An SDTS (moving target selection) mode was available.

Any Russian speakers who can add to this. or correct what I've said?

Video clips of Orion-A in action, from "Neba", a self-made documentary by the 455th Attack Regiment, flying Su-24s out of Voronezh.

orion-a-mode1-divx-big.avi
orion-a-mode2-divx-big.avi

Sources
« Last Edit: January 03, 2006, 12:09:41 pm by overscan »
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Offline PaulMM (Overscan)

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« Last Edit: January 03, 2006, 12:12:56 pm by overscan »
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Offline Dilbert

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Re: Sukhoi Su-24 Avionics
« Reply #3 on: January 04, 2006, 03:27:33 pm »
Interesting stuff!

Odd that the missile seems to make a direct hit while the aiming cross is drifting all around the target...  It doesn't look as stable as any TV lock I've seen on Western displays.   ???

The "orion*" avi files don't seem to be linked correctly in post #2, and the avia.ru forum topic seems to have been moved or removed.  Do you have the original Russian text saved?

Offline PaulMM (Overscan)

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Re: Sukhoi Su-24 Avionics
« Reply #4 on: January 04, 2006, 03:36:27 pm »
http://airbase.ru/users/varban/iba/su-24.htm seems to have a cached copy of the discussion. I fixed the links to the Orion radar footage.
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Offline PaulMM (Overscan)

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Re: Sukhoi Su-24 Avionics
« Reply #5 on: March 26, 2006, 12:49:43 pm »
Fascinating- this is an early Kaira installation, put on the last Su-24 of the second production batch and used in the Su-24M development program. Note the two windows, exactly mirroring the MiG-27K installation, and the position near the front of the fuselage.

Source:
  • Sergei Moroz, Su-24 Front Bomber, Major 2001
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Offline PaulMM (Overscan)

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Re: Sukhoi Su-24 Avionics
« Reply #6 on: March 30, 2006, 12:50:57 am »
Did anyone ever verify the purpose of the two apertures on MiG-27K Kaira? According to Markovsky in the Exprint MiG-27 book, one aperture is a laser rangefinder, the other one TV and laser designator. Other sources state that one aperture is a LLLTV, the bottom one a tv and laser system.
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Offline Tompa

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Re: Sukhoi Su-24 Avionics
« Reply #7 on: March 31, 2006, 10:09:07 am »
IIRC, Markovskiy says that the upper aperture is a laser rangefinder, and the lower is the target designator - Kaira. But, doesn't Kaira itself provide range data? Unless the Kaira on the MiG-27K is some sort of an early model requireing separate ranging, and that on the Su-24M/MK a later, more advanced model - just food for thought here... I've read posts on some Russian boards by MiG-27K ex-pilots, and noone ever mentioned anything along the lines of an LLLTV...
Kind regards,

Tompa (>o<-<

Offline PaulMM (Overscan)

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Re: Sukhoi Su-24 Avionics
« Reply #8 on: March 31, 2006, 10:19:07 am »
Well, according to some sources, the Su-24 did not use laser ranging but exclusively used radar ranging, using the millimetric radar. If true, this would explain the absence of the second aperture on production Su-24M.
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Offline Tompa

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Re: Sukhoi Su-24 Avionics
« Reply #9 on: April 01, 2006, 11:39:00 am »
What puzzles me about the MiG-27K optronics suite is that the upper aperture looks alot like the homing head of the H-29T (I know it's not really a technical description  ;D), and not at all similar to Fon or Klen apertures...
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Offline mrdetonator

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Re: Sukhoi Su-24 Avionics
« Reply #10 on: April 03, 2006, 03:26:31 am »
What puzzles me about the MiG-27K optronics suite is that the upper aperture looks alot like the homing head of the H-29T (I know it's not really a technical description  ;D), and not at all similar to Fon or Klen apertures...
This can be explained by the fact that the FON and KLEN(laser range finder/designator) were developed by the UOMZ compared to the CKB Geofizika which manufactured the LTvPS KAIRA. In my understanding the KAIRA on the Mig-27K included the laser range finder and the laser designator slaved with the TV(vidikon type) target recognizing system. Note also the KAIRA was able to track the target in the back hemispere what enabled to drop laser guided bombs. This probably needed to install apertures separately, the upper one for laser range finder and lower for laser designator. Even the newer "single aperture" KLEN-PM(PS for Sukhois) was not able of looking backward, therefore the Mig-27M was limited to use laser guided missiles only.

Offline tomcat1974

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Re: Sukhoi Su-24 Avionics
« Reply #11 on: May 19, 2006, 12:29:51 am »
Is there a drawing of a Su-24 cockpit? I seen some drawings for Su-27Sk, Mig29, but didn't found it for Su-24 (I am kind of desperate , need it for a 3d Model)

Offline PaulMM (Overscan)

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"They can't see our arses for dust."
 
- Sir Sydney Camm