Hypothetical Question re: Expedited Preflight

Posted by buzburbank@reddit | aviation | View on Reddit | 6 comments

Non-pilot enthusiast here. I just watched this fascinating microburst video

https://www.reddit.com/r/aviation/s/kUqPOVfqNA

and it got me to thinking. Say an unexpected severe thunderstorm is approaching and is somewhat imminent in terms of threats to person and property. You are onsite at an airport/airfield with minimal infrastructure and your GA aircraft is parked out in the open. The weather at your location for the time being is unremarkable. You are confident that inaction will result in total destruction and possibly even endanger your life, and that getting airborne would almost certainly keep both you and the aircraft safe.

Strictly by the book, about how much lead time (i.e., preflight) do you need to execute a safe and legal departure?

Throwing out the rules, how much time would you need to still feel safe about the aircraft and your preparation, at least to get out of harm’s way?

How much of a regulatory no-no would that be, and is there any circumstance under which the risk of sanctions, fines, or penalties would be justified?