Why do my wings keep breaking?

[Mosley]

So, im doing the surrounded mission with the default loadout and for some reason especially when im using the gun the outer half of my wing will break off. So my question is am I overstressing the aircraft? Wing getting shot off? Glitch?? Im sure my flying technique is not right, but i dont think im turning to hard. figured id stall first.

 

 

Also on a side note, one other issue is when I china hat forward long to slew everything to the markpoint then switch to tgp pick a target, tms up long to make spi, switch to mav and china hat forward again to get the mav seeker lined up it moves the tgp, and mav backto the markpoint. it might be doing the tad too havnt looked. any idea what im doing wrong?

temp2.trk

[Migo]

Also on a side note, one other issue is when I china hat forward long to slew everything to the markpoint then switch to tgp pick a target, tms up long to make spi, switch to mav and china hat forward again to get the mav seeker lined up it moves the tgp, and mav backto the markpoint. it might be doing the tad too havnt looked. any idea what im doing wrong?

Just a quick reply: China hat forward long slews all sensors to SPI, nothing to do with a mark point. You can only slew to current Waypoint by pressing china hat aft long.

[Snoopy]

I had the same thing happen to me on a gun run yesterday...wasn't near the ground and no reason for damage before hand...slowly pull up and there goes my right wing....doing more testing to see if I can reproduce.

[Mosley]

So im guessing, that when i start the mission the hud is already soi? and the command you recommended was to make the hud soi? all these acronyms cant keep em straight.

[MTFDarkEagle]

Coolie up short.

 

On the left side of your hud, if there is a * present, that means your hud is your soi.

[WildBillKelsoe]

Same here bud!

 

Yesterday doing a dive (probably overstressed the frame), and both outer halves of my wing broke off... Wasn't shot at or anything. Probably, we should read more of the manual or even ask somebody from ED on maximum vertical velocity or stress velocity...

[Mosley]

Ok, so i fired it up again, and if i do a 35 degree dive and bank to one side and pull hard my wing will break off if im going over 360 ish. Also tried it after jettison stores, was going about 385 same thing. so my new guess is overstressing the airframe. not super sure but also want to say if i bank to one side it brake the same wing. for example bank left break right wing, bank right breaks left wing, dont quote me on that tho.

 

that help any?

[mark35444]

What was your airspeed in the Dive? Did you manage to see what your accelerometer was peaking at?

[Mosley]

plane seems to stay in one piece at 360ish, over 375 and its pretty much a brick provided you turn too hard. think that g forces would be thru the roof during this event?

[Soul]

It is most likely overloading of the wings by pulling too many G's with weight on them. The heavier you are the less G's you should pull. Think of your head as weighing 10 lbs and when you pull 1 G your making your head 10lbs heavier as an example(probably not close to right). So, if your wing is rated at 25,000lbs and you have 5,000lbs in stores on that wing that wing can only hold 5 times what you have stored there. So most likely pulling a 5+G maneuver you will over stress the airframe and loose some parts. Now, I am probably wrong on the math and all that but that is the basic principal I believe. Please, correct me if I am wrong.

 

Also, keep a close eye on what Paul has to say once his testing is finished.

[Mosley]

thought i read somewhere to build up as much speed as possible during a gun run, but i have a feeling this is the other extreme. plus as you mentioned you dont have much time at that speed.

[Soul]

You would want your speed to stay above 250-280 i would guess it helps the pac keep you aligned easier. anything above 280 is dangerous in my book especially if your going to pull a max deflection pull out. And if your not using pac it wouldnt matter anyway the gun is gonna pull you up no matter how fast your going.

[GGTharos]

I've never snapped the wings ... even when running in at close to 4000. I guess I just watch the amount of g's I pull.

[Kuky]

if your wings are breaking you are simply overstressing the aircraft and solution is simple, stop yanking on the stick all the way suddenly, if you were sitting in that aircraft for real you would know what it feels like to do that at high speed so you wouldn't be doing it, you have to adjust your flying style to be more smooth and not sudden yanking on the stick like that.

[Mosley]

I realize that if Im doing 400 knots and yank and bank that could happen. However I have had this happen before in situations where I have had to watch the track to see what happened because the turns shallow and I wouldnt think that would have messed up the plane. ill look into it some more and see if i can reproduce something without turning very hard.

[mark35444]

I've never snapped the wings ... even when running in at close to 4000. I guess I just watch the amount of g's I pull.

 

:pain:

 

4000 knots or feet? :huh:

[GGTharos]

Knots. I hate it when those extra zeros show up out of nowhere, unless it's on my paycheque between the first digit and the decimal point.

[Snoopy]

I haven't had time to test again yet but looking through all the documentation I have (keep in mind it's real world) the actual speed for gun runs isn't listed anywhere. There is a reference to the "gun handbook" but I don't have access to that.

 

As to overstressing the ACFT, I know for one when my wing snapped off Sunday I was only pulling about 2 G's and with the loadout I had I wasn't near an over G.

 

When figuring out what your Max Accel (G) is you go by themost restrictive flight limitations on external store's. At the time it was the TGP which has a max excell of +6.0/-2.0 and a max KIAS of 450. I was no where near +6 Gs or 450 KIAS.

 

Here is an example of the charts in the -1

[Frostiken]

That's the thing about load factors. Exceeding the instantaneous delta AoA and G regardless of weight or configuration will cause the wings to go to go bye-bye.

 

I would laugh if they took into account pre-existing stress fractures on the main wing spars of 30+ year old airplanes that have been remanufactured by the lowest bidder.

 

I was thinking the same thing - the current A-10 wings are dangerously at the edge of failure and recently had to start production back up.

[dbeaty]

Glad I found this, as I just had this happen. Using the same flying as in .8 I snapped wings off 3 times in a row during gun runs. This was with full load out on Instant Action. Just dive in on the first target and when you pull off hard on the stick the right wing breaks off. Not sure speed, prob around 295.

 

Tried it with speed brakes extended and low throttle, I was able to pull off target and keep my wings.

 

The first couple times I replayed track, not understanding how an unarmed fuel truck could shoot me down!

 

:cry:

[GGTharos]

Pause the track just as the wing breaks (not after! Just before!) and check what your g-meter says.

[dbeaty]

Pause the track just as the wing breaks (not after! Just before!) and check what your g-meter says.

 

Yup. Bad habits in 0.8 lead to dead in 0.9. I'm clearly fixated on the target, passing 390 indicated this shot is just pulling off the target. 6 Gs ++ it went up to 7

[GGTharos]

No, boards disable the PAC. Just mind the pull.

 

Then again, at 7g you don't seem to be too far over BAL with pod + GBU12 + 2xAIM-65 on the wing ... BAL is probably around 5g at this configuration, and although 7g should be an over-g on the wing, I'm not sure it should break it. Then again ... it's the only type of punishment we can offer ;)

[MTFDarkEagle]

No, boards disable the PAC.

By boards you mean speedbrakes I assume?

 

If so: the speedbrakes can extend to a certain extend (15% IIRC... do please correct me on that :) ), without disabling PAC. But I'm with GG 100%! Keep your speed up, watch your G-reading.

[dbeaty]

No, boards disable the PAC. Just mind the pull.

 

 

Got it :thumbup: But I'm not imagining things right? In 0.8 I could just yank on the stick and the wings did not break off. I'm just sayin'