MiG-21 1.5.4 Major Upgrade & Changelog

[zerO_crash]

Yes indeed the plane is resistant to the spin and is easily inferred from it. It is written in the memoirs of the test-pilots. At high angles, near-zero speeds, the plane just falls down like a leaf.

 

But I have my doubts that the aircraft can continue flying almost straight without losing speed and altitude at high angles of attack. Because in this case the bottom of the plane works as an aerodynamic brake.

 

Right, good thinking, but keep in mind that drag due to delta wing design, will have very little effect at low speeds. It does however increase more or less exponentially with increase in speed. Pretty much the same phenomenon as with the Mirage, both planes have incredibly powerful engines, thus even at high AOA, but low speed, they are capable of accelerating to some point (this indeed is what prevents you from loosing speed). However once you start pulling 9+ (continuous), that`s when your speed drops like a piano from 9th.

[Neuman]

Soviet test pilot Boris Orlov during a trip to Syria in 1972 was convinced personally that the MiG may be operated in the area of ultra-low speeds. In combat the Arab pilots have successfully used these modes of flight. Later in 1973 the USSR had conducted research work on the topic of maneuverability and flying at near-zero speeds. Many experts were surprised by the unprecedented opportunities. later introduced the term supermaneuverability.

 

But to fall tail down, and then go into horizontal flight, to make turns at speed 240 km/h it looks very cool, but it's not unnatural or unrealistic.

 

But to fly forward belly, making endless Cobra (as in the game) are two different things. I'd believe it if the MiG-21 was mounted engine with thrust vector control.

 

UPD.

 

In the rest of the FM of the MiG-21 done well. Still have to improve a little bit part of the ASP modes. For example, the mode SS Gun Pipper must to be fixed, and not float as in the mode of Gyro. As far as I know there are some inaccuracies in that in what order the rockets go 1-2 or 3-4. But it's the little things that I hope will correct. Personally for me it's not so important how first 3-4 or 2-5 at first, considering you can choose in manual mode. In General, LNS MiG-21 is very good and gives me a lot of joy and good feelings.

 

In future i would like a more advanced mode of the ARC with the ability to configure the frequency of the AFB beacon, not only NDBs

Edited June 26, 2016 by Neuman

[Mokkeri]

Soviet test pilot Boris Orlov during a trip to Syria in 1972 was convinced personally that the MiG may be operated in the area of ultra-low speeds. In combat the Arab pilots have successfully used these modes of flight. Later in 1973 the USSR had conducted research work on the topic of maneuverability and flying at near-zero speeds. Many experts were surprised by the unprecedented opportunities. later introduced the term supermaneuverability.

 

But to fall tail down, and then go into horizontal flight, to make turns at speed 240 km/h it looks very healthy, but it's not unnatural or unrealistic.

 

But to fly forward belly, making endless Cobra (as in the game) are two different things. I'd believe it if the MiG-21 was mounted engine with thrust vector control

 

Pls show how to perform endless Cobra. i can't. I can maintain very high AoA but i will loose altitude, more than 10000ft/min.

[RNeves]

Hi guys!

 

Can anyone tell me where are the red and white flood light dials??

 

I can't find them in the cockpit, and the key combinations assigned to each of these dials don't seem to be doing anything...

 

Am I doing anything wrong?

[Art-J]

Flood lights don't work yet, as explained in the very first post.

[RNeves]

Flood lights don't work yet, as explained in the very first post.

 

Thanks!

 

Only noticed the last line of the first post now!!

[Neuman]

Pls show how to perform endless Cobra. i can't. I can maintain very high AoA but i will loose altitude, more than 10000ft/min.

 

 

Try to use afterburner at this moment. If the engine is at low speed or stopped the MiG-21 is really very fast and natural way losing altitude. At this point I have no complaints, except that maybe should add some shaking to roll. But if you use afterburner, it turns a long flight into the horizon at the speed of 390-410 km/h, height is lowered slowly and the aircraft is moving at high angle of attack. In a variant of FM at the end of 2015, had no such problems. There were other bugs, but this particular part was set up well. Now LNS corrected almost all the flaws, with only a little work to this one point and everything will be fine.

Edited June 26, 2016 by Neuman

[Mokkeri]

Try to use afterburner at this moment. If the engine is at low speed or stopped the MiG-21 is really very fast and natural way losing altitude. At this point I have no complaints, except that maybe should add some shaking to roll. But if you use afterburner, it turns a long flight into the horizon at the speed of 390-410 km/h, height is lowered slowly and the aircraft is moving at high angle of attack. In a variant of FM at the end of 2015, had no such problems. There were other bugs, but this particular part was set up well. Now LNS corrected almost all the flaws, with only a little work to this one point and everything will be fine.

 

No afterburner dont give enough thrust to maintain 0 VS. Go ahead and try. Maintain 0 VS and slow speed and AoA start to increase. At some point you need to add throttle to keep 0 VS. When you reach critical AoA and wing stall even full AB is not enough to go out of stall. You need to lower you AoA.

[Neuman]

This doesn't make sense. You can't be in level flight at a 'high' AoA and at 400km/h at the same time.

First you said 'endless cobra', now it's just 'high AoA' without specifying how high.

 

AoA 39-41, vertical speed 1-2 m/s, IAS~ 400 km/h.

[Mokkeri]

 

AoA 39-41, vertical speed 1-2 m/s, IAS~ 400 km/h.

 

I would like to see track.

[Neuman]

 

I would like to see track.

 

when I reached the height of 1250 I could fly at this altitude and even gain a little more - despite the high angle of attack. In my opinion I had to lose speed pretty quickly and fall down vertically lowering the nose.

MiG-21bistrack.trk

Edited June 26, 2016 by Neuman

[Neuman]

How can you have 40 AoA at a speed that's higher than the normal approach speed?!?

 

If LNS will fix this annoying bug I have no complaints about the FM. In my opinion it is just a bug because of which is not the effect of aerodynamic braking from the bottom plane of the aircraft. The other parameters in FM LNS MiG in General exactly match the nomograms of documents.

Edited June 26, 2016 by Neuman

[Mokkeri]

 

when I reached the height of 1250 I could fly at this altitude and even gain a little more - despite the high angle of attack. In my opinion I had to lose speed pretty quickly and fall down vertically lowering the nose.

 

Ok now i see how you did it. Second stage AB gives extra thrust, i did not use it. I tryed also and i was able to get same performance. IAS is not 400km/h, with tacview it gives 230km/h. I dont know is this realistic or not but it seems that DCS Mig-21 can do level flight 40 deg. AoA with second stage burner.

[Neuman]

So far you are the only one who's reporting this 'annoying bug'. Don't see anything even remotely similar. Don't know why you insist on the aerodynamic braking part.

At this AoA the whole underside if the plane is acting like a large (although stalled) wing and the MiG 21 has lots of thrust.

 

I'm not going to argue. you may be right. I just expressed my personal opinion.

[bkthunder]

So far you are the only one who's reporting this 'annoying bug'. Don't see anything even remotely similar. Don't know why you insist on the aerodynamic braking part.

At this AoA the whole underside if the plane is acting like a large (although stalled) wing and the MiG 21 has lots of thrust.

 

He's not the only one, I am reporting it as well ;)

[Mokkeri]

He's not the only one, I am reporting it as well ;)

 

Do we know is this realistic or not. I made same test with SU-27 (default fuel and ASC direct control enabled. I was able to hold level flight 40 AoA and IAS 107km/h even without afterburner. With afterburner i started to climb. I think this is not AoA subject more likely thrust to weight ratio.

[Neuman]

? 400km/h vs 230km/h...that's quite a difference...

 

Perhaps in Tac View shows the speed in miles? Speed about 400 km/h

[Mokkeri]

Perhaps in Tac View shows the speed in miles? Speed about 400 km/h

 

It can show knots or km/h. In your track IAS was 230km/h and i got same speed when i tryed with emergency AB, but you was right DCS Mig21 can maintain level flight at about 40 AoA.

[BlackLion213]

Some small isues:

 

The view slightly jumps at the touchdown and takeoff, just before the wheels touch the ground, and just after the plane takes off.

 

 

 

BTW, is it me or are the landings a bit tricky again, like they used to be?

 

 

Thank you for posting the video Grunf, I also see the jump on landing/take-off. It seems to happen right as cockpit shake is initiating or stopping (during take-off or landing respectively). I haven't seen it at any other times.

 

Also, landings are slightly trickier again. :) Though I'm quickly getting used to it. For me, its just that the controls are a bit less precise and responsive than before (during landing speeds), the nose also wanders more (which I like).

 

-Nick

[Neuman]

It can show knots or km/h. In your track IAS was 230km/h and i got same speed when i tryed with emergency AB, but you was right DCS Mig21 can maintain level flight at about 40 AoA.

 

 

 

 

Default mission, you can choose it in start menu - Free flight. Maybe in your setting is set to Imperial units

Edited June 26, 2016 by Neuman

[Mokkeri]

 

 

Default mission, you can choose it in start menu - Free flight. Maybe in your setting is set to Imperial units

 

Here is two tacview screenshot from your track. Something wrong on speeds, impossible IAS/TAS/GS speeds.

Edited June 26, 2016 by Mokkeri

[Neuman]

Here is two tacview screenshot from your track.

 

Well then Tacview or reports incorrect data, or external view in the game (F2). In any case, this mission was not very great height or wind speed, to have such differences between TAS and IAS. Perhaps the Pitot tube lacking compression in this position :). TAS on TacView shows 435 km/h

Edited June 26, 2016 by Neuman

[Blackjackk]

Than you mate

 

With limited testing versus AI, I have noticed slight improvement, I am not sure if I would define it as all aspect capable however. I apologize for the delay. The flight model of the aircraft has changed a lot however it just has more "Feeling" when you fly. Hope this helps!

[azm]

Adjusted acceleration

Acceleration of what and what way is this changed? Edited June 27, 2016 by azm

[CoBlue]

MiG-21 Changelog 1.5.4

• Added red cockpit lighting*
  
• Added right side white panel spotlight*
  
• Corrected several Z-Fighting issues in cockpit artwork*
  
• Added missing glow on several switches and levers*
  

I'm wondering if the 2 English Cockpit mods I'm using will still work with those changes? or will the mods ruin the artwork?