martinez!

If something looks like 21bis – that is MiG-21bis.
There were NO other sub-type name for Mig-21bis with downgraded equipment.

The 21s in Beograd are definitely 21bis – bigger intake, cockpit, spin-tank…

1. there exist Migs-21MF with BIS cockpit panels
2. the wider spin-tank and inlet lip ring can be removed and reinstalled with a other one at the regiment maintenance shop level.

Unless, you provide something more valuable than “If something looks like” as your evidence, then I have no problem to believe you that it is the BIS.

I did not merged that air intake.That info i recived from one our mechanican.I am planing to do that next time..but it seems that Gordon was right about this one..that is BIS but also that bis has older engine ,older radar and many other commponents wich are older and what i am sure that is not called BIS in its tehnical documetnation.
Why is that so?i really dont know..but this mixture of new airframe and oold equipment made this comedy of ex Irak MiG-21 in various books.
In Yugoslav publications,forums etc authors call them: SM,SMT,bis,MF with bis hump etc. i called that plane ST etc.. I even heard story that this was originaly SMT wich was modified in Zmaj overhaul plant..but than i got some contacts with people who relly worhed on this plane and thay said that they did only simple overhaul..nothing more.
In western pulbicatinos it is similar situation..IN AFM A.Radic say that is SMT..some sources reported that this is SM Tropical etc. only Yefim Gordon clearly call this planes BIS.
I think that we are finally very close to clear this situation.

BTW. i am Sveto(Svetozar) not Svato:))

I`m sorry bro to mess up your beautiful first name , we celebrate Svetozar nameday on may 16. , just four days before my birthday 🙂

Now, it seems you agree with E.Gordon that Iraqi Migs-21 were BIS even though at the beginning you have written the Iraqi Mig-21 aircraft passport says, it is a SM?

Is it true or not?

..in aircraft passport(tehnical documentation wich came with aircrafts and wich contains a list of all partis in plane etc.) calls this plane SM..

I believe you should stick to that if it is true. But even if I`ve never seen a SM, SMT, ST nor BIS aircraft “passports”, I`ve seen plenty of Mig-21PF, PFM, M, MF, R, US, UM. I doubt the passport of Iraqi Mig-21 in Yugoslavia said anything similar like SM. See following pics, taken from various Mig-21 passports, usually there is written a code, the “izdelie” of aircraft and engine or an aircraft construction/engine number. Never a commercial name, like PFM, M, MF, R, UM….etc

..R-13 300 engines wich surely shows that this is ST..

Could be also surely wrong, bcs Migs-21SM/MF were equiped with R-13-300, whereas the Mig-21SMT the predecessor of Mig-21ST with the modified R-13F-300 engine. You mentioned that before, Iraqi Migs-21 were some kind of BA$TARDS, smaller intake(maybe SM/MF sized??), engine R-13-300 from older SM models, the SMT sized spine(fuel tank), additional turbo cooler for avionics/engine, modified avionics like the added RSBN antenna on a/c intake and some other changes…

I have a theory but you wont like it. 🙂 Those Iraqi Migs-21 in Yugoslavia were partly worn-out SM models from Soviet regiments, then overhauled, modified and then sold to Iraq. How typical for that times and Soviets dealing with non-trustworthy Arab countries

do not forget, GPS signal provides signal corrections to the primary INS to increase accuracy so that it can be used with or without it. No clever weapon guidance system(a/c navs as well) is dependent on a GPS only.

Hi all

For whom it may concern:

Moga’s last F-22A Raptor demo during Aviation Nation 2008. Check out the very tight turn. It was told that it nearly 12.8Gs.

enjoy.
http://www.youtube.com/watch?v=bgaOrCYb7b0

Nothing unusual, saw that many times. With that huge wing area, one tight turn, it lost speed and became sluggish, tvc is handy then and you can still turn on a spot.
But what surprises me most is that this probably 20th demo I have seem F-22 performing, still the 360 degree turn last 18-19 seconds, a moderate 20deg turning rate. I`m wondering whether the F-22 is able to fly it any tighter? Probably not 😀
http://www.youtube.com/watch?v=8dly6DQ0fNA&feature=channel
P.S. Old Flanker does it in 13-14seconds.

That last line there, why make such a wild, stupid claim that contributes nothing to the topic. We will ignore the fact its nonsence anyways.

Today, the audience is somehow long-wired, dont take jokes…..:D:D:D

You do not have to be from Mars to know that Russia has been less than reliable when it comes to after sale support.

Below is an example from a news article that ran May 24, 2007:

Complains would be in place, bcs Russia wants to raise the deal 😀 they are making an elephant from a fly. I thought you were asking about spares for Sukhoi only? Where exactly is the indenpendent journalist claiming Indian Sukhois are suffernig spare parts shortage?