If there are 50 Tornado crews at any one time, this is one fatal collision every 10 years.
We are not talking about fatal collisions, we are talking about RISK of collision, or risk to life (RtL), and that is what RA 1210 fails to address.
Another point is that Cat A airproxes are not fatal. Not even all mid-air collisions are fatal (I can think of at least 5 off-hand in which all survived, whether through ejection or safely landing the damaged aircraft). So airprox and collision rates don't provide as straightforward an input into the risk calculations as might be expected.
Sorry, but according to DG MAA the only thing that prevents a Class A from not being a collision is "luck". It was "bad luck", according to him, that played its part over the Moray Firth in July 2012. So every Class A is a potential collision and a RtL. Seven Class As and one collision during 2012 and 2013 is not a tolerable situation.
Do not follow your figures. How do you arrive at 100,000 flying hours based on the 1 in 1000 rate?
DV