My quadcopter lost contact with my controller when it went underwater (like in the old TV series Voyage to the Bottom of the Sea). How can I fix this quickly before it sinks completely out of sight. It's in a deep lake....R
@robin, my dji phantom ran low on batteries ...
floats don't work on heavier drowns
Somebody just don't try much. You want to run over water, make a flying boat.1 cubic cm of air space can float just next to 1 gram of copter. 1 lb is 454 grams, half a liter.The fans don't touch (room between) and the bottom has no propwash. Floats can go outboard of the props.Maybe the fan ducts could also be floats.
Airbags and a moisture sensor to deploy them?
Some people selected doses of bicarbonate that would result in several hundred milliliters of gas release within 3 min; it seems likely that such injudicious ingestion of sodium bicarbonate, if taken when the stomach was distended with air, food, and liquid, could be an important factor in spontaneous gastric rupture.
A lump of sodium?