Canon EF 100-400MM IS.

It was a crap day and I’m strictly amateur

Ken

An amateaur?, me too..:) I`m using prime canon 400mm, but waiting for the mother of all telephoto lenses the Canon EF 200-400mm f/4 L IS USM with built in extender 1.4x ..:D
http://www.the-digital-picture.com/Reviews/Canon-EF-200-400mm-f-4-L-IS-USM-Extender-1.4x-Lens-Review.aspx
Btw. nice pictures, anyway I remember friday at MAKS 2009 staying under Zhukowski tower listening their sunday forecast.

beautiful sunny day, blah, blah, blah…

if you were there you know how it turned out to be.:D:D

A couple of my photos from MAKS 2011 to keep you amused…

More from MAKS here

Ken

what lens are you using Ken?

Here is what LM says about their own BiStatic radar system.

Notice that the number one performance dependent factor is “geometric diversity”, which means that you need the transmitters spread around.

While that “may” be true of earlier RAM/RAS, the F-35’s RAM is specifically designed to defeat a broad range of EM bands (as public patents show).

No, as the transmitter’s location is not known.

Are you aware that the US is developing an airborne bistatic radar?

thanks, found this…

ERA’s PET technology, Vera-NG by ERA, is a mature technology deployed in Asia, Europe and the Americas, which tracks aircraft, vehicles, and other targets based on passive tracking of emissions, including radars,jammers , IFF transponders, DME/TACAN interrogators, Datalink and other communication, navigation and surveillance systems..

http://era.aero/solutions/military-security/

Peru’s MiG-29SMP . Single seaters photographed for the first time (hopefully better pictures will appear).
http://www.defensa.pe/showpost.php?p=315555&postcount=6188

IFR probes like the UB-SMP 047 seen a few months ago. Gray cammo.

PS: There’s a picture of an UB-SMP in flight also :
http://www.defensa.pe/showpost.php?p=315777&postcount=6218

they are changing appearance to grey as well…:rolleyes: ..nice though

Developers and operators of purpose-built stealth airplanes are not crying in their beers. RAM and RAS provides attenuation of RF scattering no matter where the emitter and receiver are located.

Passive coherent location, the technology mentioned in the article, has been around for 15 years, so this is nothing new to designers and operators of stealthy airplanes.

The off-board emitters used by PCL are not a reliable RF source in a conflict. PCL is also susceptible to broadband jamming. When coupled with reduced RF scattering, relatively low power jammers can protect a flight of stealthy airplanes when operated properly. It is a matter of extremely low signal to noise, with RAM and RAS reducing signal and jamming increasing the noise floor beyond what a receiver can discriminate.

If I understood correctly emitter location doesnt matter, different frequency matters, coz RAM ans RAS are not much multi band capable, are they?
I think PCL is from since 80ies, the name Tamara radar you`ve heard already, probably developed countering uncle Sam stealth. Since then every big player in this world is developing or operating PCL systems to counter stealth.
Regarding broadband jamming covering stealth, doesnt it even provide more food, more signal for the PCL system in order to find what doesnt want to be found?

Now let’s have a look at the reality 2012

Any questions ??

reality is even worser than it looks right now and talking about Slovak airforce is insulting…:mad:

IRST ball is not clear ????

Ken

Hats down Ken 😉 , but explain on principle why it is not clear?

But still, welding is till the most common way for steel and most metal works.

Is there any better upcoming tech to replace riviting in airplane manufacturing, in the future? it got alot bad caractaristics…

Depends on materials used in the aircraft structure. Many aluminum alloys in the industry do not like welding as the temperature anneals the affected area, decreases strenght. They are machined or forged and then heat-treated, after they obtain in the hardened state a high strenght properties,then they`re joined by using riveting metods. Quite extensively used when joining aluminum structures is automated spot welding for large fuselage panels of airliners, e.g. most of Mig-29 front fuselage aluminum skin is spot welded as well as the whole fuselage fuel tank structure-mid fuselage section (check picture below), rest is riveted, bolted . Mig-29 CFRP skin parts were also riveted what is seen to be not the best joining methods due to brittle nature of composite structures. As the use of composite structures in aircrafts are increasing, some new joining methods are very slowly replacing riveting and bolting like adhesive bonding, but I doubt riveting will soon disappear from the industry.

inside spot welded Mig-29 fuselage fuel tank, the pipe is DSMK fuel level trasmiter, next to it is the hydraulic tank no.2