sting808 said:
Something interesting...
Not saying I would fly in the rain, but I have modded both my p2v and p2v+ with a micro Deans power connector for my LED prop lights for night flying. If anyone took apart their unit, you would see the ESC circuit boards are coated with what appears to be some type of "conformal" spray. The boards "appear" to be moisture resistant. I probed the ESC(motor speed control board) power leads and the solder bead wouldn't conduct. Had to move my probe toward the wire insulation to get continuity to verify power bus.
The p2v+ has the camera WiFi electronics in a shielded case and the NAZA is enclosed so couldn't see it, but the mainboard looks coated, too. Mileage may vary, but It looks like fog or light moisture not to be a problem in the short term.
Like most RC aircraft, almost none of the connectors in the Phantom's are waterproof, water-resistant, nor are they coated with any protectants to render them impervious to the corrosive effects of water with the possible exception of the wifi UFL connectors which are covered with glue to prevent them from popping off.
Surface tension is not our friend when moisture beads together to form droplets that make their way along cables with assistance from forced air and flight movement down into the connectors on the Central Board, NAZA-M, and (if you'd like to see for yourself without opening the shell)... the connector on the Compass Sensor which is strapped to your landing gear. Also remember the camera has a cooling fan; I don't really think they had water-cooling in mind when they designed it, but imagine where that moisture goes. And before you ask, yes the camera is replaceable to the tune of over $400 USD.
I have no problem with anyone who wants to "get the shot" or break a record and executes a short flight (edit: I believe Lakeville, Minnesota* still holds World Record here for coldest flight in extreme but relatively "dry" conditions), but if I saw droplets forming on my lens I'd fly back ASAP, ground all flights, and get it aired-out. Another good argument for having vents... to let air circulate thru the Phantom not only for cooling, but also to help air out the moisture after a "damp flight".
iDone
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http://www.phantompilots.com/viewtopic.php?f=7&t=5173