Mid Air Mishaps in Knights of the Sky

In the WW1 aerial game at the club the other week, one of the chaps had a very interesting idea. At one point there was a real pile up over the target area and it looked as though all of the aircraft involved were getting just a little bit too intimate with each other. This raised the inevitable question from one of the new players about mid-air collisions, to which the aforementioned veteran responded with a cunning plan, a potential mechanism for just such a thing.

I bounced this idea off the rules designer, Richard, via email and he was kind enough to send me this very enlightening reply:

I have always taken the view that mid air collisions were very rare because the aircraft were slow, manouvreable and there were relatively few of them flying around.  The horizontal scale is about 1:3000 and the vertical scale is about 1:12000, so in KoTS 'the same hexagon and at the same height' represents over 100 million cubic metres of air!  That said, feel free to add a house rule if you wish.  

How about all the players with aircraft in the same hexagon and at the same height roll 2xD6 if 2 or more of the players score a double 1, they make contact.  If that happens give them 1 each of all 4 coloured dice to roll for damage.  That gives a very small chance of a lot of damage which feels about right.  

I thought this sounded very sensible, so I will try it out in the next game that we play. I'm sure Oswald Boelcke would agree?