I flew my Arducopter IFR-FPV Sunday!
It was pretty cool once I landed safely back at the takeoff point.
For various reasons which I won't go into, my video camera view became unusable 2 or 3 minutes into the FPV flight in my rural neighborhood, and I found that I had no idea where I was.
The last thing I saw was an unfamiliar street and I was probably 100-150 ft high, then I couldn't make out anything.
I realized FPV wasn't going to get me back so I put int into loiter and took off my googles and and tried to see if I could see or hear it. I found that I couldn't hear or see the ArduCopter.
Unfortunately, I hadn't set up the Mission Planner and ground station, I was just going for a quick test flight before it got dark. so i just took the copter and the radio and took off.
Then I remembered!, I could just use the MinimOSD, thats what it's there for!
So I put the googles back on, even though I couldn't make out any camera image, the OSD was overlaying fine. So I checked the direction arrow, and the distance, I was about 600 feet out.
So, i turned until the arrow was pointing straight up and started heading in, In less than a minute, I began to hear the copter and it was a great sound. The meters out were counting down and I got it right within 2 meters of home, and descended to a landing. Whew!, I wiped my brow and retreated to the house with my hardware, and got a beer..
I found that it was a great feeling to know that I could fly IFR, and that I probably could have used RTL instead, using the instruments was much more fun and less nerve racking...