4:1 Ratio of fatal US glider accidents, West vs. East

On Thursday, January 30, 2014 5:37:42 AM UTC-5, wrote:
I'm a maps geek, so I always like my data to have a visual component .

Yep. And it can get interesting when you add additional layers of data.

If you're in the mood and someone comes forward with the data set, it would be interesting to add the "annual number of aerotows per location". There is bound to be some interesting anomalies (places with lots of tows and no accidents).

There was a discussion last year of the aerotow count survey on RAS, but I could not find it by searching. It would be interesting even if the data set were only available for a year or two if that caveat were prominently noted.

About a decade ago I searched through the NTSB database looking for all accidents that said "contest" "race" or "meet" to get a sense of what the problems with contest soaring are. The results are here

http://faculty.chicagobooth.edu/john...est_safety.ppt

I've been too lazy to update it, but if anyone is playing with the data a similar search would be useful. As others have mentioned, not all accidents get reported.

John Cochrane