Potentially Incorrect Size of Scud Engines

[uriyuzhui]

I noticed this when I observed the current ROEngine Scud (S2.253 series) is roughly 1m in diameter in game, 2x the size of Veronique but only 2x the thrust (as supposed to 4x).

The only sources I can find supporting the ~1m diameter about the engine is from astronautix's S2.253 page and R-17 stage page which mentions a figure of 0.96m.

However, the diameter of R11/R17 is commonly available and reported to be 0.88m according to CSIS and this and even astroautix's R-11 page and many other sources. An engine of 0.96m diameter certainly cannot fit into it.

Although I failed to extract the source of it, this diagram suggests that the near-1m diameter includes the span of fins which is a plausible explanation.

This diagram shows a cut-away structure of how S2.253 (8D511) being enclosed in the fuselage, and given we know the body diameter of 0.88m, the engine part is estimated to be roughly 0.7~0.75m in diameter.

This should also bring Scud closer in line with Veronique in term of thrust/cross-section ratio.

Conclusion: suggest to rescale Scud engines to 0.7m in diameter or 0.7x of current size.