aknowledged Fa18/A2A refueling slow

[Brodey54]

Noticed that in air refueling with KC130 and F18 is very slow. Almost to the point that I am burning just as much fuel as I am taking in...

[Lord Vader]

Hi @Brodey54

Do you have any publicly available information about the rate of refuel on that particular tanker? If so, please send it to @BIGNEWY.

There has been no recent changes to the fuel passing rate. 

[CageyLobster]

@Brodey54 Here is a track of me refueling from a KC-130.  I am unfortunately unable to duplicate the same issue as you are having, on my system.  I am not a troubleshooter within DCS.  I am just leaving this here to see if it may help solve your issue.  Also, please be gentle with the critiques, lol KC-130_F18_plug.trk

[Michel0079]

My latest tanking some days ago took about 5-10 mins i think (not counting the time of getting disconnected ). This was not for a full tank btw more like 80% full.

Yep takes some time. Not sure if was quicker before. Dont think so.

 

Edited October 31, 2023 by Michel0079

[Lord Vader]

Again, there were no significant changes to the tanking behaviour or rates recently.

If the comparison is between the KC-135, then yes, it's going to be slower, especially using a refuelling probe wich is capable of much quicker rates.

I see no issues with that track, both the KC-130 or the S-3 are not particularly fast refuelers. But, again, if there's any public available data on rates or speeds, please send it to us and we'll have a look.  

[Coyle]

15 hours ago, Lord Vader said:

Again, there were no significant changes to the tanking behaviour or rates recently.

If the comparison is between the KC-135, then yes, it's going to be slower, especially using a refuelling probe wich is capable of much quicker rates.

I see no issues with that track, both the KC-130 or the S-3 are not particularly fast refuelers. But, again, if there's any public available data on rates or speeds, please send it to us and we'll have a look.  

I'm fairly certain that it's a misconception that the KC-135 refuels faster with the boom on fighters. The hornet and viper should both refuel roughly the same amount despite their different refuelling methods. The KC-135s boom is capable of refuelling faster, yes, but on larger aircraft that can accept that larger flow of intake. I would ask that you double check the fighters fuel intake rates, and not a blanket fuel rate that the tanker itself can theoretically apply.

Edit: If anything, the hornet and viper refuels too fast in DCS. Will send info.

Edited November 1, 2023 by Coyle

[Razor18]

Anybody can look up this Growler Jams video showing a real life refuel.

The totalizer (left DDI top left corner group, top row) starts winding up after contact from 12470 lbs at 1:17, and ends up showing 19160 at 10:40.

The so it took 9 min 33 sec to take up 6690 pounds. Divide the 6690 by 9,5 gives you about 700 lbs per minute offload rate.

I know it is a Rhino, but I don't think the difference between a Rhino and a Hornet would be astronomical, and even less chance the older Hornet would be the better one..

Edited November 1, 2023 by Razor18

[Cepheus76]

But you have to allow for fuel burn during refueling, too. Let's assume a burn of 3000 lbs/ h per engine, the fuel consumption during that 9.5 minutes would be 950 lbs. So the fuel transfer rate would be roughly 800 lbs/ min.

[Razor18]

19 minutes ago, Cepheus76 said:

But you have to allow for fuel burn during refueling, too. Let's assume a burn of 3000 lbs/ h per engine, the fuel consumption during that 9.5 minutes would be 950 lbs. So the fuel transfer rate would be roughly 800 lbs/ min.

Yeah, good call, thanks

[Tholozor]

According to ATP-56(A) NATO UNCLASSIFIED, dated November 2000, the KC-130's fuel transfer rate (equipped with Sargent Fletcher 48-000 pods) should be:
- 4080 pounds per minute, with the removeable fuselage fuel tank and two AAR pumps installed.
- 2040 pounds per minute, with the removeable fuselage fuel tank and only one AAR pump installed.
- 1020 pounds per minute, without the removeable fuselage fuel tank installed.

For the S-3B, the fuel transfer rate should be 1370 pounds per minute.

For the KC-135:
- Boom: over 6000 pounds per minute
- MPRS pod: 2680 pounds per minute

[Razor18]

I guess that is the max, but I guess the bottleneck is, how "fast" (lbs/minute) the receivers can take fuel...

Edited November 1, 2023 by Razor18

[MARLAN_]

See: ATP-56(B) Annex ZE for PPM/Pump values for receivers.

[BIGNEWY]

I have moved this to wish list for now and marked acknowledged. 

We do have a report open internally however there is conflicting information for to fast or to slow.

This is low priority at this time and the team will look at the issue when time allows. 

thank you

[Hobel]

vor 17 Stunden schrieb Razor18:

Anybody can look up this Growler Jams video showing a real life refuel.

The totalizer (left DDI top left corner group, top row) starts winding up after contact from 12470 lbs at 1:17, and ends up showing 19160 at 10:40.

The so it took 9 min 33 sec to take up 6690 pounds. Divide the 6690 by 9,5 gives you about 700 lbs per minute offload rate.

I know it is a Rhino, but I don't think the difference between a Rhino and a Hornet would be astronomical, and even less chance the older Hornet would be the better one..

 

Okay if I watch the video and then ingame with the f18  it is almost the same?

I think the boom was quite slow in dcs but I don't know exactly anymore