On 30 Jan 2018 07:03:53 -0800, Miloch
wrote:

In article , not my real pseudonym
says...


Interesting that the middle engine intake is covered.

Just a guess but I think the pic is from the factory and in intake is covered
during the assembly process.

Makes sense. Better than my first hypothesis that they were trying to
hide the third engine from prying Russian satellites that didn't exist
yet. =}