Kerbal Space Program

Shucks, the EnginePlates were the only parts for which the old method to give proper drag to each 'variant' was working.

What do we want as a long-term fix? Since these EnginePlates do not shield their contents, probably the fairest approximating shape for drag would be a cylinder with top and bottom areas that fully occlude a matching cylindrical part, and very short side-lengths to add minimal simulated skin friction to the friction already being simulated for the contents.

Long term, a custom DRAG_CUBE entry for each part seems wise, like the solution to #19376. In the short term, for those of us on PC and with the 'Module Manager' mod, the text below in a *.cfg file in GameData will provide 'procedural' drag-cubes that corresponding to a short-sided cylinder occluding both upper- and lower- mated parts:

@PART[EnginePlate*] {
    %MODULE[ModulePartVariants] {
        %useMultipleDragCubes = false
    }
    %MODULE[ModuleJettison] {
        %useMultipleDragCubes = true  // the 'default' drag-cube represents the maximum-length shroud
        %useProceduralDragCubes = true // so use a procedural cube to avoid repeating the exposed-to-heat bug #23924
    }
}