Quote Originally Posted by Nitrodaze View Post
Surprising really that there isn't a contingency for when the chopper is able to fly for whatever reason.
We have a situation where the cars could drive the track but are not allowed to. I wonder if they would cancel the race if it turns out to be cloudy on sunday as well.
There are rules for when helos are allowed to fly and when they are not, called Visual flight rules.
These rules can be a little different from one country to another which is why helos can fly in a certain weather in country x but not in country y.

Page 34: http://www.icao.int/Meetings/anconf1...ons%5B1%5D.pdf