Talk:GRAD fire from Russia?
Even if the GRADs were fired form the Russian side of the border it does not tell us who was firing or whose GRADs they were. There is no border fence and hardly any demarcation on the border. (Why would there be? In fact, there is no natural border or anything between Lviv and Moscow where one could say Ukraine ends and Russia starts.)
17 February Guardian & BC stuff. A lot of bigger craters are from SSE, some from S. Some from SSW? -maybe. So what? That was contested territory, Amvrosiivka, with NAF all around it, and UAF further away towards Russian border. Distance cannot be determined from looking at a crater on Google maps. So on basis of direction, it could come from NAF, UAF, or Russia. Claiming it was from Russia indicated intention to place it there, and essentially is a dishonest bullshit. I am sure there are some tracks out there on Russian side; does not tell what it is, and surely there are plenty of track marks elsewhere as well. --Resup (talk) 07:10, 23 February 2015 (UTC)
Crater Analysis References
Western sources use versions of something like this Basically what it says is that for impact fuze shell or mortar, spray will go forward (and they say mostly to sides, pointing forward), for angles not too steep. While for steep angle, like a mortar, it is big blow-back imprint, splinter-like; and excavation forward (so material is blown on the front side, but large visible imprint is due to blow-back streaks)--Resup (talk) 07:10, 23 February 2015 (UTC)