Skywriting with a quadcopter?

Hello all,

I've been using the APM platform for a few months now, and i'd really like to try a software project. Something i have in mind is following a predefined path for extended exposure photography. I've seen many instances of this, such as below

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Throttle dropouts with APM2.5 and FS-TH9X

Hi guys,

Had my first catastrophic crash today (broke an arm, a motor, and my pride). 

During the last moments of the flight, the low power buzzer went off just as I was switching to loiter mode. Tried to get it back in stabilize and crashed. I assumed

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