In all sims to get this effect all it takes is to lose the packet enroute that contained the hit data, the game could be running perfectly but if a net problem coincides with the time of transmission of the packet containing the hit data then one comp sees a damaged/wingless bird and the other chap flies on oblivious to any damage because it never arrived at his end.
Its nothing to do with one comp not sending the data or the other chap choosing to not receive it, but it is everything to do with it getting lost enroute.
Anybody who thinks otherwise then please post below in less than 100 words why you think the internet is problem free 100% of the time, and be aware 99.9% of people will be able to post saying the opposite

Also this game is played worldwide, errm i know that may come as a shock to some of you living in the USA but the world does not end at your borders

so it could easily happen you are firing at somebody on the other side of the planet and possible packet loss increases dramatically.
I also dont think Hristo was suggesting it was a cheater RAM, you are maybe being so eager to agree with everything you think Hristo does or says that you are in danger of losing your objectivity.
Its never good to accuse anybody of cheating in open posts, take your time check if others are experiencing the same effects with the same player and then be absolutely sure because if your wrong you will have started a witch hunt on some poor sod whose only crime is living a long way away or having a crap ISP.
Specifically for AH i say if some of you repeatedly experience the same effects with the same player then contact Hitech with your concerns and i am sure they could monitor the player in question.
But wingless planes still flying to me is no real concern until somebody guarantees 100% connection quality, sure its a pain in the bellybutton cos you gotta hit em again and may be wasting ammo, but no big deal.