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This is new? Mig-29 in DCS brake apart with just 7,6 Gs


pepin1234

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Today I was amazed when I wanted to perform a right turn with some Gs and the Mig-29S literally broke apart.

 

As I suspected the enemy missile never get close enough to hit me and this incident happen right at the moment I perform the turn I decided review the Track.

 

AND yes the airframe did brake apart with the result of killing myself.

 

All right but the very weird is my payload was 4 R-73 and 2 R-27ER pulling 7,6 Gs.

 

If you want replicate this and see...

 

For me this is really weird because I lot of time I have seen F-15 turning really hard with fuel tanks and now see this in Mig-29 with a payload like that amazed me a lot.


Edited by pepin1234

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I'm aware Russian fighters kinda like "handle with care" jets but 7 G seems too low for breaking apart. Dunno I might be wrong.

No need to compare with the mighty Eagle, we've been there before. Just wait untill Tharos chime in lol j/k...

Mastering others is strength. Mastering yourself is true power. - Lao Tze

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I exceed the AoA limit, that was the problem. The fuel was half and no center tank at this moment.

??? Not sure what you mean by this.

 

OTOH, I've just taken a few test flights with 6 AAMs, beginning the flight with 95% internal fuel (starting gross weight 15,000 Kg), and was hitting a high of 12 Gs down through 7 Gs (8-9 Gs repeatedly) during the course of the flight without issues.

YouTube Channel: https://www.youtube.com/channel/UCU1...CR6IZ7crfdZxDg

 

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Win 10 Pro x64, ASUS Z97 Pro MoBo, Intel i7-4790K, EVGA GTX 970 4GB, HyperX Savage 32GB, Samsung 850 EVO 250 GB SSD, 2x Seagate Hybrid Drive 2TB Raid 0.

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??? Not sure what you mean by this.

 

OTOH, I've just taken a few test flights with 6 AAMs, beginning the flight with 95% internal fuel (starting gross weight 15,000 Kg), and was hitting a high of 12 Gs down through 7 Gs (8-9 Gs repeatedly) during the course of the flight without issues.

 

he means he yanked on the stick too hard and it broke apart...

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By exceeding the AoA limit? This doesn't make sense.

 

Do you know how I performed the maneuver? I mean what I did exactly at the moment I pulled 7,6Gs. Please can you show how pull 7,6Gs in any flight regiment without damage the airframe to make sense.

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Do you know how I performed the maneuver? I mean what I did exactly at the moment I pulled 7,6Gs. Please can you show how pull 7,6Gs in any flight regiment without damage the airframe to make sense.

See attached TRK file.

G-Test-1.trk

YouTube Channel: https://www.youtube.com/channel/UCU1...CR6IZ7crfdZxDg

 

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Win 10 Pro x64, ASUS Z97 Pro MoBo, Intel i7-4790K, EVGA GTX 970 4GB, HyperX Savage 32GB, Samsung 850 EVO 250 GB SSD, 2x Seagate Hybrid Drive 2TB Raid 0.

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We have tested the F-15 fully armed, with 3 bags completely full and begin making rolls after a high speed dive that take the aircraft to 13Gs during the rolls and ... nothing happened! LOL

 

while RU fighters brake apart... :doh: tell me some stories that make us believe again :thumbup:

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Although it had to be scrapped after this flight, there is a documented case from an F-15 that survived a 20G emergency pull-out.

 

The -1 emergency pull-out table says to apply full aft stick or 10G up to wing rock.

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while RU fighters brake apart... :doh: tell me some stories that make us believe again :thumbup:

 

How’s this for a story? I burnt through to two full fuel loads this morning trying to tear the wings off a MiG-29 and failed miserably. I started at M1.4 and worked my way down in speed. Most turns were in the 8-10 G range with spikes as high as 12 and some less. As a result, I’m not sure that things like fatigue are even modeled for this aircraft like they are for the Su-27. But it certainly isn’t fragile. Don’t know why yours came off but perhaps something extremely odd happened.

YouTube Channel: https://www.youtube.com/channel/UCU1...CR6IZ7crfdZxDg

 

_____

Win 10 Pro x64, ASUS Z97 Pro MoBo, Intel i7-4790K, EVGA GTX 970 4GB, HyperX Savage 32GB, Samsung 850 EVO 250 GB SSD, 2x Seagate Hybrid Drive 2TB Raid 0.

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How’s this for a story? I burnt through to two full fuel loads this morning trying to tear the wings off a MiG-29 and failed miserably. I started at M1.4 and worked my way down in speed. Most turns were in the 8-10 G range with spikes as high as 12 and some less. As a result, I’m not sure that things like fatigue are even modeled for this aircraft like they are for the Su-27. But it certainly isn’t fragile. Don’t know why yours came off but perhaps something extremely odd happened.

Here is a way to reproduce it :

1- Start 8.000m and go into a -30° dive

2- Once you reach M1.3 to M1.4 ... pull on the stick

 

It works 100% since M1.3 with full or medium payload

It also works with a slick plane with only 1T fuel at M1.4

 

 

Note : as there is no G limiter on MiG-29, this behavior does not seem to be unlogical to me.

MiG-29A wings away M1,4.trk

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EVAC : French virtual fighter school on DCS-World

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Here is a way to reproduce it :

1- Start 8.000m and go into a -30° dive

2- Once you reach M1.3 to M1.4 ... pull on the stick

 

It works 100% since M1.3 with full or medium payload

It also works with a slick plane with only 1T fuel at M1.4

 

 

Note : as there is no G limiter on MiG-29, this behavior does not seem to be unlogical to me.

Ah... Finally. Tried it with all three aircraft in the mission and the wings snap off--at 16-17Gs.

YouTube Channel: https://www.youtube.com/channel/UCU1...CR6IZ7crfdZxDg

 

_____

Win 10 Pro x64, ASUS Z97 Pro MoBo, Intel i7-4790K, EVGA GTX 970 4GB, HyperX Savage 32GB, Samsung 850 EVO 250 GB SSD, 2x Seagate Hybrid Drive 2TB Raid 0.

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Since both of you are seeing 'slighty' different G loads for the structural failure, which G value are you looking at? cockpit? F2? during actual flight or replay?

 

Another thought. The G-limit applies only for symmetrical loads. As soon as you are e.g. banking and pulling at the same time, max g-load rapidly decreases.

 

edit: tried with 3 ext tanks and above M1.1 during 9G aileron roll, she didn't break up.


Edited by bbrz

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Since both of you are seeing 'slighty' different G loads for the structural failure, which G value are you looking at? cockpit? F2? during actual flight or replay?

 

Another thought. The G-limit applies only for symmetrical loads. As soon as you are e.g. banking and pulling at the same time, max g-load rapidly decreases.

 

edit: tried with 3 ext tanks and above M1.1 during 9G aileron roll, she didn't break up.

I can only speak for myself with certainty. I am using F2 during replay. The cockpit accelerometer only goes to 10. My assumption is that Fouga (perhaps) and pepin1234 are using Tacview. In F2 view, Fouga's TRK shows the wing snap at 16.7 Gs (you have to slow down playback to read it because the Gs accumulate so quickly). In Tacview, it displays as 7.9.

 

For my part, I've been playing around with both pulling and rolling and pulling simultaneously to see if there was any difference. There wasn't. I had not been doing it with external tanks as that's a no-no. Foulda's test aircraft has all three external tanks attached. The mission is set up with three test aircraft with differing gross weights depending on fuel load: 17,800kg, 15,800kg, 12,400Kg. Enter a dive and pull straight out so that you are also fighting gravity. That method snaps the wings.


Edited by Ironhand

YouTube Channel: https://www.youtube.com/channel/UCU1...CR6IZ7crfdZxDg

 

_____

Win 10 Pro x64, ASUS Z97 Pro MoBo, Intel i7-4790K, EVGA GTX 970 4GB, HyperX Savage 32GB, Samsung 850 EVO 250 GB SSD, 2x Seagate Hybrid Drive 2TB Raid 0.

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