I used Bokuda's definition of crash: When it's easier just to build a new one than to repair. I've had a couple models go down for "technical reasons" for example a weak battery and a few deadsticks, but in some sense I suppose this was still my fault. I also had one shot down by someone in the pits switching on his radio. The most common cause of "model death" for me is probably loss of orientation (at low altitude). I'd put this into the category of "dumb thumbs." I don't remember ever "screwing the pooch" on a landing, though I have cartwheeled on take-off once.

I have to say I'm a bit humbled by people who have thousands of flights on a model. While I'm long past the point where I used to wonder as I'm driving out to the field whether I'd be coming back home with an intact model, I still wouldn't want to bet that any of my regularly flying models will still be around next year. I imagine this would be the case no matter what kind of model I flew (and flew regularly).

So, I suppose I should ask what tips you 1000 flighters can give to improve the odds of my models coming "back from the mission."