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aerospacetech

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August 5, 2004 at 9:26 am in reply to: New Phazotron Radars- Kopyo-DL and Arbalet-D #2653135

aerospacetech
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“Fazotron-NIIR” for the first time represented 2 new models of radars. The first – “Kopyo-DL” reveals the aerial targets (objects), which approach an aircraft from the side of rear hemisphere, including small size rockets of the type “Stinger”. The second – “Arbalet-D” is established/installed on the combat helicopters. Radar reveals and are measured the parameters of the approaching it targets/purposes, including of small size. The presence on board this radar makes it possible to in proper time complete rocket evasion maneuver and to eject thermal decoys.

translated from: http://allexpo.ru/news/exhibition/19706.html

August 4, 2004 at 4:48 pm in reply to: if MiG-25 was to be constructed with todays technology #2653628

aerospacetech
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Titanium is expensive and difficult to work with. Thats two reasons why the Russian’s avoided it. The 70’s era Sukhoi T-4 was largely titanium, and never actually made it to service. When MiG were designing a Mach 4 bomber/recce (Izdeliye 301/321) in the late 80s, they were still going to use steel as the primary material.

August 3, 2004 at 5:57 pm in reply to: PAK FA news #2654692

aerospacetech
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Note that the AL-41F1 isn’t actually directly related to the AL-41F. Its a program to add some technologies to the AL-31F from the AL-41F program, to gradually increase performance of the AL-31F.

August 3, 2004 at 4:51 pm in reply to: if MiG-25 was to be constructed with todays technology #2654738

aerospacetech
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Full burner interception radius is a mere 160 nm.

Do you know the F-15’s full burner interception radius? According to F-15 Eagle by Jeff Ethel, about 70nm 😉

August 2, 2004 at 7:40 pm in reply to: PAK FA news #2655568

aerospacetech
Participant

All phased array radars suffer from a degredation in performance when scanning at extreme angles. The Bars radar is the worst in this respect- it steers only +-40 degrees electronically, and one can argue that the mechanical scan is a fix for this. The normal figure for a phased array (i.e. RBE-2) is +-60 degrees, while the best anyone has ever quoted is +-70 degrees (Phazotron Zhuk-MSFE). The Zhuk mechanically scanned radars have +-90degrees in azimuth, which is a lot bigger than even the best phased array can manage.

The only downside to combined mechanical/electronic scanning is the additional weight. You don’t lose anything- your phased array can still operate as normal, you just gain the ability to extend the scanning limits beyond what is possible with a fixed array.

August 2, 2004 at 6:32 pm in reply to: The next FB-111? Or the next Tu-160? #2655625

aerospacetech
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Well, ideally you’d want a new airframe optimised for sustained flight at Mach 2.4. The trouble with this is cost and time. It would be a BIG new program, take a long time and cost a lot. Unless you give the task to Boeing as a dual use supersonic transport/bomber design…

This leaves adapting an existing airframe, for which the FB-22 is the only sensible option.

You’d need a fuselage stretch, modified variable intakes and improved engines.

August 2, 2004 at 4:17 pm in reply to: Kamov Ka-31 AEW helicopter #2655794

aerospacetech
Participant

Kamov Brochure

August 2, 2004 at 3:16 pm in reply to: PAK FA news #2655815

aerospacetech
Participant

Rotating passive phased array means, like N011M Bars, that the phased array is not fixed but steerable. Bars is steerable in azimuth only.

The Su-35BM is featured in Air & Cosmos Number 1935 – 7 May 2004. I bet PiBu can tell us more 😉

August 2, 2004 at 2:38 pm in reply to: PAK FA news #2655848

aerospacetech
Participant

Well I think “its got the AL-41F1 engine and improved avionics” pretty much qualifies as information?

There was no mention of airframe changes. The “AL-41F1” is a bit of cheat- its a staged development of the AL-31 incorporating some AL-41F technology. Makes a lot more sense than trying to shoehorn in the real AL-41F.

August 2, 2004 at 2:07 pm in reply to: PAK FA news #2655903

aerospacetech
Participant

The latest Sukhoi is the Su-35BM with AL-41F1 engines and advanced avionics including either Phazotron’s Sokol or NIIP’s new Irbis radars.

Irbis is a rotating passive phased array, a newer generation than Bars but building on work done on that radar.

Irbis is expected to be ready around 2006/7 so I guess this is the timeframe for the Su-35BM. The AL-41F1 program should be well advanced by then as well.

August 2, 2004 at 10:47 am in reply to: Kamov Ka-31 AEW helicopter #2655965

aerospacetech
Participant

The Oko radar and the Ka-252RLD helicopter project have their origins as far back as the late 1970s. The system entered production in 1998, for domestic use and for export.

The Oko radar is optimised for lookdown performance over both water and land.

It tracks 20-40 targets. Scanning time is 10 secs. Range is 110-115km against a 1.8 sq m RCS air target, while detection range of a ship target (300 sq m RCS or larger) can be made out to the radar horizon.

Secondary processing is done on board ship. Antenna is 6m x 1.0m and weighs 200kg.

July 27, 2004 at 10:28 am in reply to: Kamov Ka-31 AEW helicopter #2660007

aerospacetech
Participant

If you want I can send you scans of the whole brochure once I get back from camping this week.

They weren’t on display- the nice man from Kamov went out back and found it for me.

I also picked up a lot of other brochures and magazines, which I will be going through when I get back.

July 26, 2004 at 3:13 am in reply to: New Mikoyan light fighter info #2661129

aerospacetech
Participant

This is very rough, but the idea was to blend MiG-29M with some 1.42 ideas.

July 26, 2004 at 1:31 am in reply to: New Mikoyan light fighter info #2661182

aerospacetech
Participant

Obviously you should base your design on the MiG-29M, as this already is greatly improved over the basic MiG-29, including a lot more fuel.

July 26, 2004 at 1:29 am in reply to: New Mikoyan light fighter info #2661188

aerospacetech
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😀 Let me guess- no tails???
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