My thoughts are with the family, however you have mentioned a very good point.

Here in the U.K. at the the J.M.A meets, and 'Classic Jets' a risk assessment is made for the event, at the pilots briefing a first aider appointed for the event. The location of some of the events, and the time of year may require fire cover also.

For 'Classic Jets' Dick has a map showing the location of the nearest hospital too.

Sandor, you are 100% right CPR for 10 mins is really hard work particularly for one person

As this incident shows we must not become complacent, there is always something ready to bite us in the *****