RD-107/108 vernors, main engine are separate modules, configs applied inconsistently

[fat-lobyte]

The RealEnginesPack version for the RD-107/108 engines and its derivatives features two different engines: The main engine and the small vernor engines. While this may seem like a good idea at first, there are two main problems with it:

• The vernors are not upgraded along with the main engine. This means that the mixture ratios will be incorrect. That's especially problematic for the RD-117/RD-118 (11D512P) variants which use Syntine instead of Kerosene, while the vernors on the same part still use Kerosene.
• The vernors do not respect ullage and ignition rules, and can be restarted arbitrarily.
• The vernors are not subject to TestFlight failures and continue to run even if the main engine failed

Is there a way to simply drop the separate config for the vernors, add vectoring to the main engines and make only the model act like the vernor engines are moving?

[PhineasFreak]

Yep, that is something that currently affects every engine that has auxiliary engine modules (like the LR91 turbopumps or the RD-107/108 verniers). There is a plan to migrate everything to use THRUST_TRANSFORM multipliers but not everything implements that fix (IIRC the SXT X-405 engine does).

Attached are the semi-reworked RealEngines patches. They will not work as-is for RO but it is a starting point for any interested party in order to implement the required fixes for RO itself.

RE_RealEngines_Russian.zip

Edit: and a more "direct" config, part of the DECQ Soyuz LV: https://github.com/KSP-RO/RealismOverhaul/blob/master/GameData/RealismOverhaul/RO_SuggestedMods/DECQ/RO_DECQ_R7.cfg#L1449-L1473

[DRVeyl]

My understanding is this is fixed for RealEngines. I defer to @Capkirk123 on engine configs, but believe this has been resolved generally in the past few years. Will leave open briefly if anyone has conflicting information.