Thanks once more for your reply What exactly does athmosphereCurve do, or mean? Is it something like air resistance? You mentioned gas mileage? As for my electriccharge hack. Despite batteries, radial ones and packs, being attached directly to the engine, it did not receive any electrichcharge resources, as though it was not connected. Presumably electriccharge behaves differently from liquidfuel and oxidizer. Or perhaps it is because electriccharge has no density? To be honest, I have no idea!