can not reproduce f-16 losing power on lots of sweeps

[swaps]

Using the fighter sweep option to practice dog fighting but many times I am losing power after a shot while. I have saved a track where I have to do an emergency landing as had no power to climb. I have attached file in the hope someone can tell me what is going on ?

 

Thanks Alan

lost speed.trk

Edited March 21, 2022 by swaps

[Hiob]

Sorry if that sounds sarcastic, it is not meant in that way:

Are you perhaps out of fuel? The Viper gobbles a lot in burner….

[razo+r]

Unfortunately your track does not work for me.

 

What I saw though is that you always left your throttle at ~50% power, maybe that was it?

[swaps]

1 hour ago, Hiob said:

Sorry if that sounds sarcastic, it is not meant in that way:

Are you perhaps out of fuel? The Viper gobbles a lot in burner….

Only flying for about 5 minutes, I have not got my head tracking fully set up yet so in a dog fight I am not looking at any gauges but fuel would normally appear in the heads up if it was low.

1 hour ago, razo+r said:

Unfortunately your track does not work for me.

 

What I saw though is that you always left your throttle at ~50% power, maybe that was it?

Its normally left at full but had been doing landing and I had it set to 50 that time but it happens at 100% as well. I know the game is picking up the throttle but not sure how well. I stated a training mission with it set to zero and I was still flying around. I have remapped it a couple of times and it shows as working

[swaps]

Just tried it again on full power with same results. within 5 minutes I am having to give full back stick to maintain level and lose hight every time I turn. I will try putting trim onto the hat switch and see if I can trim it out but in seems power related to me.

[Deano87]

Can you maybe record a video?

Are you flying in the Open Beta or Stable version of DCS?

 

[BIGNEWY]

3 hours ago, swaps said:

Using the fighter sweep option to practice dog fighting but many times I am losing power after a shot while. I have saved a track where I have to do an emergency landing as had no power to climb. I have attached file in the hope someone can tell me what is going on ?

 

Thanks Alan

lost speed.trk 103.67 kB · 2 downloads

 

Hi, 

please check your controller throttle axis, check for double inputs, or check calibration of the device itself

 

thanks

[Hiob]

Put on the controls overlay (RCtrl+Enter) and see if the throttle creeps down…. then it‘s probably a controller issue (like Bignewy suggested)

[swaps]

1 hour ago, Deano87 said:

Can you maybe record a video?

Are you flying in the Open Beta or Stable version of DCS?

 

2.7 as far as I know this is latest stable version ?

 

[swaps]

21 minutes ago, Hiob said:

Put on the controls overlay (RCtrl+Enter) and see if the throttle creeps down…. then it‘s probably a controller issue (like Bignewy suggested)

I have done this and gone into free flight, Thrust is working fine and dont get power loss, seems to be on the training missions or some, I have not tried them all.

 

Alan

[Deano87]

What does the fuel gauge say when the power dies? It’s just in-front of the stick to the right. Has some digital numbers in the middle of it. Do you still hear the engine? If you look at the throttle in the cockpit does it still move with your throttle?

[swaps]

3 hours ago, Deano87 said:

What does the fuel gauge say when the power dies? It’s just in-front of the stick to the right. Has some digital numbers in the middle of it. Do you still hear the engine? If you look at the throttle in the cockpit does it still move with your throttle?

Not a fuel problem, it always happens after about 5 mins flight. When low on fuel fuel message flashes in the HUD. I hear the engine but its not powerful enough to do more than fly and if you turn and lose height its impossible to get back. stick is full back to maintain current height. have a lighting issue so my head tracker is not working well most of the time. I need to get some light in front of me so have not been looking around much.

 

Thanks Alan

[razo+r]

Can you send another track or record a video? 

[swaps]

I will try and get another track and video today.

 

Thanks Alan

[Exorcet]

The original track is broken, but from what I see within it, the throttle never moves from 50%. You may have a keybind conflict which is locking the throttle at 50%.

In addition to this, every maneuver you make seems to be with full stick and bleeds you of energy. This is especially bad since you're carry 2 fuel tanks in the mission. If this part of the track is accurate you need to maneuver more gently at the altitudes you're flying at.

[swaps]

14 minutes ago, Exorcet said:

The original track is broken, but from what I see within it, the throttle never moves from 50%. You may have a keybind conflict which is locking the throttle at 50%.

In addition to this, every maneuver you make seems to be with full stick and bleeds you of energy. This is especially bad since you're carry 2 fuel tanks in the mission. If this part of the track is accurate you need to maneuver more gently at the altitudes you're flying at.

Hi,

      It was at 50% on this run I have not looked down as its normally full but this has happened many times and almost always on full thrust. saying that I have run the sweep 4 times today and its not done it. It may just have been a glitch.

 

Alan

[Deano87]

It honestly sounds like a binding issues.

Are you familiar with how to check your control bindings to make sure nothing else is set to the throttle axis? It sounds like some other peripheral may be assigned to throttle and is overriding your joystick throttle and sticking you at 50% thrust.

If you need guidance on how to check your controls, watch this video below.
 

 

[CybrSlydr]

So, I have a Cougar HOTAS and just flew the F-16 in a mission for the first time this patch - and for some reason, my throttle will not go past full-mil power despite my throttle being at 100%.

Joystick analyzer says it's at 100%, but DCS isn't recognizing it as such.  

Thrust is still set to my Z-axis.

You can see on the second picture, throttle is at 102% and no afterburner.

Now it won't go past 100%.

Edited March 22, 2022 by CybrSlydr

[razo+r]

Did you forget to press the finger lifts (or whatever it is called) that is required to be pressed to get into afterburner?

You can disable this behaviour in the special options.

[CybrSlydr]

11 minutes ago, razo+r said:

Did you forget to press the finger lifts (or whatever it is called) that is required to be pressed to get into afterburner?

You can disable this behaviour in the special options.

I wasn't aware that was even a choice - I've never had to do that in the past.  Is this because of the new F-16 HOTAS from WinWing?

EDIT:  That fixed it for me - thank you!!!

Edited March 22, 2022 by CybrSlydr

[razo+r]

41 minutes ago, CybrSlydr said:

Is this because of the new F-16 HOTAS from WinWing?

 

 

No, this option has been for a long time available to the F-16 (maybe even since release?) and it does not or shouldn't depend on your hardware.

[swaps]

1 hour ago, Deano87 said:

It honestly sounds like a binding issues.

Are you familiar with how to check your control bindings to make sure nothing else is set to the throttle axis? It sounds like some other peripheral may be assigned to throttle and is overriding your joystick throttle and sticking you at 50% thrust.

If you need guidance on how to check your controls, watch this video below.
 

 

Yes I am sure this is not happening. I did the 50% run by accident, every other time its been set to 100% even at 50% the plane has more than enough power to fly. I'm talking power loss that the stick all the way back is giving about 20% nose up. just enough to keep the plane flying but any turn loses height which cannot be got back. has not done it today so far and I have done 6 sweep missions. Not sure what it can be. I raised a ticket but as it seems to have resolved itself it will probably be closed.

 

Thanks Alan

[Deano87]

3 hours ago, swaps said:

Yes I am sure this is not happening. I did the 50% run by accident, every other time its been set to 100% even at 50% the plane has more than enough power to fly. I'm talking power loss that the stick all the way back is giving about 20% nose up. just enough to keep the plane flying but any turn loses height which cannot be got back. has not done it today so far and I have done 6 sweep missions. Not sure what it can be. I raised a ticket but as it seems to have resolved itself it will probably be closed.

 

Thanks Alan

What is your airspeed when you have 20 degrees nose up? What is your altitude as well?

You may be just on the back side of the drag curve. If you let the F-16 get too slow it becomes very draggy and doesn’t always have enough power to accelerate out of it, specially at high altitudes. So you need to release the back stick and let the aircraft accelerate. 
 

Again a video would make this significantly easier to diagnose if it happens again. 

[rob10]

Check for a speedbrake binding issue?  It's more of an ON/OFF with the F-16 vs gradual with the Hornet, so if you have a duplicate binding it might slowing you down.

[swaps]

I raised a ticked and they managed to take control and get it flying by using afterburner. I cannot find afterburner in the list of controls for searched burn. I found a control but this does not seem to be afterburner. can you tell me how afterburners appear in the listings ?

 

Thanks Alan