These are in development configs for RealFuels-Stockalike support.

Requirements:
BDB
RealFuels-Stockalike http://forum.kerbalspaceprogram.com/index.php?/topic/73410-stockalike-rf-engine-configs-v323-11517rf-v12/
RealFuels
RealPlumes (recommended)
and their dependencies.

Installing.
Delete GameData\RealFuels-Stockalike\BDB if it exists.
Copy the RealFuels-Stockalike\BDB folder located here to GameData\RealFuels-Stockalike\BDB

Reporting issues: https://github.com/CobaltWolf/Bluedog-Design-Bureau/issues/312