Lockheed SR-71 Blackbird

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Georgius ::Бес, ако си и даље у Чилеу, ово је сасвим могуће објашњење шта си видео на небу к'о што рече Друг пуковник


Niste onda videli fotografije sa Novosadskog aeromitinga očigledno.
U Novom Sadu sam već više od 4 meseca. Ovo je snimljeno kroz prozor mog stana.
Inače nema tog majčinog sina od satelita koji uzleti takvom brzinom. Oni su jedva vidljivi i kreću se sporo u odnosu na naše percepcije brzine gledano sa zemlje.
Ovo je bilo jako svetlo i pojavilo se i nestalo u 2-3 sekunde ka gore a oko se vide plavičaste i crvene zvezde koje su put prešle u tih 44 sekundi ekspozicije a ovo se odigralo pri kraju i zato sam prekinuo snimak da bih video da li ga je uhvatio.
U mraku i sa ISO100 mora da bude veoma svetlo da se pojavilo na snimku a u trajanju od 2-3 sekunde samo. Pogledaj samo kako se zvezde vjedva vide a bile su podvrgnute ekspoziciji od 44 sekunde i prešle su veoma mali put.

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E a sada malo ekskluzive - donosim raritet sa jednog švedskog foruma za ovu temu..
Fotografija napravljena iz JA-37 Viggena 29. Juna 1987. godine u 14:00 iznad Baltičkog mora prilikom povrede Švedskog vazdušnog prostora. Nema podataka o visini i brzini ali izgleda da je Viggen bio u stanju da ga bar donekle prati (možda mu je prišao sa strane?). Prema uglu fotografije takođe možemo zaključiti da SR-71 leti dosta iznad Viggena. Momci sa švedskog foruma tvrde da je ova fotografija ustvari samo "still shot" kompletnog video zapisa sa trake iz kamere Viggena tog dana ali Švedsko RV nije još (zasad) objavilo kompletan video zapis. Video je bio kasnije prezentovan i Američkom ambasadoru u Švedskoj u sklopu protestnog pisma u vezi više uzastupnih povreda vazdušnog prostora te iste godine.

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^

Nesto u vezi sa tim ( mozda je i bilo na temi o Viggen ) .

Close Encounters With the SR-71 - A Viggen Pilot's Story

Citat:
Here's an interesting story from a former Viggen pilot. It's a pretty long read, but well worth it.


It was the 1980s. The USA would frequently fly over the Baltic Sea with its SR-71 Blackbird at very high altitudes and up to three times the speed of sound. Despite the fantastic performance of the aircraft, Swedish interceptors were able to get a lock-on with its weapon systems during several different occasions.

This was just one of many examples recovered from the now finished Viggen epoch. An epoch which started nearly 40 years ago and has served throughout the Cold War and into the new age of the modernized, flexible, and network-centric warfare based Armed Forces.

Pilot Per-Olof belongs to the exclusive group who have had a first-hand encounter with the Blackbird, high above the Baltic Sea near Swedish airspace.


It was fairly routine during the Cold War that Swedish pilots would have to intercept aircrafts belonging to other nations. Usually the individual fighters that were in incident-readiness would suddenly be given orders to identify unkown aircrafts, and would sometimes have to reject some from entering Swedish airspace.

In the beginning of the 1980s, Per-Olof was one of the first pilots to introduce the JA 37 Viggen to the Swedish Air Force at F 13 in Norrköping. That was also when he became a part of the exclusive group of pilots who, with the JA 37, managed to get a lock-on on the US Air Force's most advanced reconnaissance aircraft - the SR-71 Blackbird.


Higher than anything else

The SR-71 is one of the fastest aircrafts built and was used on reconaissance missions at extremely high altitudes, more than 20 000 meters (~ 65 620 ft). The top speed was also very impressive - Mach 3, three times the speed of sound which is about 3 600 km/h (~ 22 370 mph). Despite the high performance of the aircraft, Swedish interceptors managed to at several occasions 'meet' the Blackbird over the Baltic Sea and get radar-guided missiles to lock-on. It often happened with a very short notice for the pilots involved.

Per-Olof Eldh says the factors that helped them accomplish this feat was that the jet fighters were in maximum readiness and ready-to-go at the time along with the fact that some of the encounters occurred during regularly scheduled training passes. The latter was the case when he himself met the SR-71 for the first time. Per-Olof was participating in an air-defense exercise when the situation suddenly changed.

"The target came flying in south of Åland outside Södertörn when I was led to a direct attack in the forward sector at a target altitude of 21 500 meters."

It was by then already outside the opening of Bråviken and P-O Eldh locked his radar onto the target. He was being guided by ground control the whole time and says that the radar was engaging at its maximum range with the semi-active anti-radar Rb 71 Skyflash as his weapon of choice. The event sounds dramatic, but this is how P-O Eldh describes the event afterwards:

"It was routine for me, but I was at a very high altitude. The digital control data that was presented to me confirmed it was either one of two possible aircrafts - a Soviet MiG-25 or a SR-71. I looked at what was happening on the radar to see if there was any attempt at jamming, and then pursued the target."

He then had a look to see if he could get a visual on the Blackbird.

"That was when I saw a graphite-grey aircraft pass me a few thousand meters above."

To this day he still does not want to reveal the exact altitude at which he was at, but it was much higher than he had been earlier. The first thing P-O Eldh noticed was that the sky had suddenly become dark.

"From being blue just a few minutes earlier, it was now black. On my way down again, I could also clearly see the curvature of the earth."

The method Per Olof Eldh used to reach the neccessary altitude was this:

"Let's assume my altitude was 8 000 m so I would be able to accelerate to Mach 1.35. I would then raise the nose about 3-5 degrees and continue accelerating during the ascent."


Fast-paced situations

P-O Eldh remembers how the SR-71 pilots liked to fly near or touching the border. In the beginning, they usually flew at Mach 3 when they came from the east, south from Åland heading towards Stockholm. Later on they would slow down to Mach 2.54 to get a better turning radius, and then hit full throttle between Öland and Gotland.

He encountered the SR-71 five times during his career. One of those events occured January 9th, 1986. Together with two colleagues, they took off from Bråvalla for a routine exercise. But before they even got the landing gear up they recieved new instructions and the group was assigned a course heading for Öland with the intent to carry through a so called "high-energy intercept" against the Blackbird.

"We climbed to 8 000 meters, turned around and accelerated over the Gotska Sea towards the Stockholm area and made contact with the target. Everything happened so fast, you're met with a relative speed of Mach 5. The mission only took 9 minutes."

The whole thing went fine for two of the pilots, but the aircraft of the third pilot suffered a high-temperature stall because of the high altitude and was forced to take emergency measures in order to re-start it.

"To fly the way you had to at an altitude of 16 000 meters involved very high risks."


Professionalism

General Lennart Petterson is the chief of the Tactical Flight Command but also he was a fighter pilot back in the days. He clearly remembers how fast everything went which missions against the SR-71 involved and describes these events as the highlights of his career.

"Each time was just as exciting and interesting. Intercepting the aircraft was tremendously difficult because of the high speeds and altitudes but it was one of the most extreme missions you could be a part of. When we succeeded, which we did most of the time, and afterwards could conclude that we actually would be able to shoot the SR-71 down if it were a live mission, it was quite pleasing since it was at the same time an evaluation of our professionalism."

sa wiki

Citat:Swedish JA 37 Viggen fighter pilots, using the predictable patterns of Lockheed SR-71 Blackbird routine flights over the Baltic Sea, managed to lock their radar on the SR-71 on numerous occasions. Despite heavy jamming from the SR-71, target illumination was maintained by feeding target location from ground-based radars to the fire-control computer in the Viggen. The most common site for the lock-on to occur was the thin stretch of international airspace between Öland and Gotland that the SR-71 used on the return flight. The Viggen is the only aircraft to this day to get a radar lock on the SR-71

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Oni su presretali SR-71 iznad svoje teritorije u dosta navrata i mislim da su morali barem jednoga da obore i da time pošalju jasnu poruku pentagonu i crnoj kući da se ne zajebavaju sa ljudima i da nisu tu da im neko udara šamare!
Sve je lepo bilo snimljeno radarskim stanicama, kao i sa aviona koji su ih presreli i prema internacionalnom zakonu, to je praktično objava rata od strane amerike i Šveđan ili bilo ko drugi su imali potpuno pravo da se odbrane a pogotovo u ovakvim slučajevima gde su preletanja bila praktično deo svakodnevice kao i kod nas tokom ranih 90ih.
Šteta što nisu snimili jedan fantastičan pogodak sa onom predivnom raketom , superiornijom i od AMRAAMa iako je "samo" semi active radar guided , Skyflash je mnogo teže ometati nego li AMRAAM i probability pogodka je veći u slučaju pokučaja elektronskog ometanja jer se konstanto navodi fantastičnim Vigenovim radarom a ne onim prdavcem u glavi rakete koju su čak i naši stari migovi uspevali da zbune!
Zaista šteta što svet nije obarao takva upadanja u njihov vazdušni prostor nego su se igrali diplomatije dok su ima ameri udarali ovakve šamare.
Fuj!

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Sva trojica na jednoj slici




iz istorijata

The Early Days of the Blackbird and the 4200th SRW With Recollections


[Link mogu videti samo ulogovani korisnici]

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Pomalo zastrašujuće

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Neki detalji o osnovnom konstrukcionom materijalu koji je koristen ,Titanijum naravno i sto je opste poznato sovjetskom .

Izvori daju podatke o 85% do preko 90% ucesca u strukturi ovog izuzetno skupog i za obradu komplikovanog materijala .

Citat:A source of purer titanium had to be found and it would be outside the United States. The outside source was located in the Soviet Union. Not only was Soviet titanium of the higher quality, but also the USSR had the only 25,000 lbs forging press needed to form the basic material. In a remarkable stroke of irony, the CIA was able to price titanium from the Soviet Union under covert conditions. The Soviet Union remained unaware that it was aiding in the development of an aircraft that someday might over fly them.

[Link mogu videti samo ulogovani korisnici]

Citat:Lockheed engineers used a titanium alloy to construct more than 90 percent of the SR-71, creating special tools and manufacturing procedures to hand-build each of the 40 planes. Special heat-resistant fuel, oil, and hydraulic fluids that would function at 85,000 feet and higher also had to be developed.

[Link mogu videti samo ulogovani korisnici]

Citat:Titanium Structure

Before the Blackbird, titanium was only used in high-temperature exhaust fairings and other small parts directly related to supporting, cooling, or shaping high-temperature areas on aircraft. The Blackbird however was constructed mainly out of titanium (85% to be exact) and the rest were high-end composite materials.

[Link mogu videti samo ulogovani korisnici]

Citat:The irony – I heard it on the grapevine, or read it somewhere on the web – that titanium which turned into dark blue while flying (SR-71s probably deserved those unofficial other nicknames “Bluebird”, or “Habu” viper) was “imported” from… USSR!

[Link mogu videti samo ulogovani korisnici]

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Besotted ::Oni su presretali SR-71 iznad svoje teritorije u dosta navrata i mislim da su morali barem jednoga da obore i da time pošalju jasnu poruku pentagonu i crnoj kući da se ne zajebavaju sa ljudima i da nisu tu da im neko udara šamare!

da, to je baš pametno oboriti avion nuklearnoj sili, i to kakav avion

i to u godinama kad je SSSR bio na zalasku i ne bi imao snage da stane iza Švedske

i da, oboriti avion koji ide 3 maha nije baš lako čak i ako ga uhvatiš na radaru

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Gradivo na ruskom

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su27 ::Besotted ::Oni su presretali SR-71 iznad svoje teritorije u dosta navrata i mislim da su morali barem jednoga da obore i da time pošalju jasnu poruku pentagonu i crnoj kući da se ne zajebavaju sa ljudima i da nisu tu da im neko udara šamare!

da, to je baš pametno oboriti avion nuklearnoj sili, i to kakav avion

i to u godinama kad je SSSR bio na zalasku i ne bi imao snage da stane iza Švedske

i da, oboriti avion koji ide 3 maha nije baš lako čak i ako ga uhvatiš na radaru

Mogli su ga oboriti Mauserom koliko su mu bili blizu a ne tako vrhunskom raketom poput Skyflash.a Mach 4+.
Objasni mi onda svrhu RVa bilo koje zemlje ako nije da zaustavi povredu svog vazdušnog prostora svim mogućim sredstvima i to pogotovo posle nekoliko upozorenja koje su Šveđani uputili direktno pilotima aviona a kasnije i diplomatskim putem što je znao ceo UN takođe?!
Onda neka unište svoje RV i vojsku kao što su naše izdajice uništile našu po naređenju najdemokratskije zemlje na svetu i uštedeće milijarde evra...