I have an aluminum party barge and want to take it out to get some aerial of the marsh. Plan on getting some shots of some of the marsh ponds and later compare them to pictures I take after the next hurricane. Just curious about erosion. After Katrina there are huge shallow marsh lakes that weren't there before. Anyhow I won't be any farther than a few miles from the property I fly at daily so I don't think I will need to do a compass calibration. How safe is this? I shouldn't have any issues because of the aluminum should I? The boat is constructed of all aluminum.