Kerbal Space Program

I can confirm seeing this, and on Windows(10) as well. Stock install with both DLC.

I did some more testing, and it looks like only(?) the Terrier engine is affected by the extra heating problem. If I replace the Terrier with a Twitch, Reliant, Vector, Poodle, or Cheetah engine then none of that extra "Conv Flux" heating is there. If I place more than one Terrier engine in the stack, then only the lowermost (i.e. first in the airflow) Terrier engine is affected. It does get some shielding from parts (heatshields, tanks, or other engines) below it in the stack.
Also, if I replace the 10m heatshield with another heatshield (I tested the 3.75, 2.5, and 1.2m heatshields) then the effect is essentially the same. (I obviously need to adjust the craft to test that...)

Is the model for the "aerodynamic size" for the Terrier too big? I.e. larger than an inflated 10m heatshield?
Edit: I just did another test: the Terrier does not seem to generate excessive drag. At least not as much at an inflated 10m heatshield.

Unfortunately this does not seem to be fixed in KSP 1.8.1. (See the attached screenshot.)

When I look into the PartDatabase.cfg then I find the following in there:

PART
{
        url = Squad/Parts/Engine/liquidEngineLV-909_v2/liquidEngineLV-909_v2/liquidEngine3_v2
        DRAG_CUBE
        {
                cube = 0, 1.078,0.7414,0.6625, 1.078,0.7414,0.6625, 1.25,0.8731,0.8318, 1.25,0.8512,20.88, 1.078,0.7414,0.6625, 1.078,0.7414,0.6625, 0,-10.49,4.768E-07, 1.269,21.01,1.269
                cube = 1, 1.077,0.7422,0.6539, 1.077,0.7422,0.6539, 0.6467,0.7605,0.8314, 0.6467,0.8417,21.03, 1.077,0.7422,0.6539, 1.077,0.7422,0.6539, 0,-10.5,0, 1.25,21,1.25
                cube = 2, 1.077,0.7422,0.6539, 1.077,0.7422,0.6539, 0.6217,0.7978,0.8314, 0.6217,0.8477,20.87, 1.077,0.7422,0.6539, 1.077,0.7422,0.6539, 0,-10.5,0, 1.25,21,1.25
        }
}

P.S. I also deleted the PartDatabase.cfg and had KSP re-create the file, and I got it again from Steam (via "Verify integrety of game files"). Neither did help.

KSP 1.8.1.2694 Linux (Ubuntu 18.04) MH 1.8.1 BG 1.3.1 (Via Steam)

So at least when I run the test scenario from the save-file attached to this report, then I still see the same problem in 1.9.0. (See attached screenshot.)

This should be fixed. You may have to delete the PartDatabase.cfg so KSP can write a new one... see comment #8
Thank you

No. KSP 1.9.0 ships with a PartDatabase.cfg that contains the errant 21-meter dimensions shown in comment 8.
If we do delete PartDatabase.cfg the regenerated file again contains the errant dimensions.
And, the screen shot in comment 10 shows the symptom persisting in version 1.9.0.

We've made some changes in the latest build and would like some input on this issue please. Thanks.

victorr wrote:

We've made some changes in the latest build and would like some input on this issue please. Thanks.

Hi, I've just tested this bug in 1.9.1 with my own eve lander and I'm still experiencing this issue.

Created a test craft with a better weight distribution to stop the craft from flipping or ending up with any obvious exposure to the heat.

The terrier is definitely getting toasty as if there was no heat shield at all.

This last picture is of the old terrier to show them working perfectly in regards to temperature

How hard would it be just to tell KSP that the new terriers have the same drag cube information as the old terriers?

Might be an easy fix? (still not entirely sure how drag cubes work)

I just did a few different tests in 1.9.1... I don't know exactly what's happened, if it's a regression, or a secondary issue separate of the partdatabase issue mentioned above (which I now suspect) but I am seeing the same issue with just the terrier engine
I am so sorry, but yes, I agree this is not fixed.

just_jim wrote:

I just did a few different tests in 1.9.1... I don't know exactly what's happened, if it's a regression, or a secondary issue separate of the partdatabase issue mentioned above (which I now suspect) but I am seeing the same issue with just the terrier engine

I also only see it with the terrier engine.
I just did a quick test: a craft with two terrier engines, one a bit more than 21m from the heat-shield, and one a bit less. Guess which one gets hot and which doesn't. ;-) (See attached screenshot.)
So, yes, the 21m that show up in the PartDatabase do play a role somehow.

I am so sorry, but yes, I agree this is not fixed.

No problem. As long as it does get fixed.

Another quick test that came to my mind: turning the terrier around. As you can see in the attached screenshot a terrier that is turned around does not get the extra heating.

This should be working now in 1.10

From my testing it seems to be working correctly now.

The heating is correct + my other craft which had the terrier explode on collision with the water when it wasnt near the water survives.

AHHans what do you think?

It looks good on my end, and based on comments #34 &35, I think it's safe to call this one resolved.