@Bliss:

I too thought initially that Lixma was wrong. Go to page 11 where you can see me doubting. But Lixma was very patient and tried to explain it (which is very difficult). I then did a very small experiment that everyone can do at home with no particular item if desired. And I had to conclude that Lixma was right right away. It SHOULD look like his image.

The experiment is: take a hand (or a drawn cross on a transparent slide) and hold it in front of one of your eyes only and don't focus on that cross but on something in the background. You WILL see the cross or the hand superimposed to the background image even though the eye not seeing the cross or the hand to the background. I tried it and it worked and it will work for you too.

BTW: As this effect will be available to all human pilots it would lead also to the aim scheme not disappearing with a head pushed to the sides in a Spit or a Hurri within certain limits. So horizontal headshake will make the circle move to one side as a whole within certain limits. The limits are that the eye closer to the reflected sight still can see the whole circle on the reflector glas.

Btw the aim circle would never appear to the pilot as being on the reflector glas but somewhere in the distance.

Speculum, remove your insulting troll post please as quick as possible.