I have a question concerning installing the 0.9 Beta Pack (I apologize for writing in English, but my Russian is hopeless- even worse than my French

). There are lines for the I-16 tip 18, 24 and 24 SPB in the air.ini.add, planes_ru.properties.add and weapons_ru.properties.add.......... but these are already in the air.ini, planes_ru. properties and weapons_ru.properties. Adding them creates double entries; is this correct??????????? I have translated the readme, but this does not answer the question. So far I have not added these lines, and disabled the mods for these planes- no problems with installing the others.
Also a bug report for the I-15s: in external view, when looking at the plane from ahead, at certain angles the engine partly disappears and sky or ground can be seen instead of cylinders. Will post a screenshot if necessary- maybe this is a known bug.