Newbie flier here with a question. I work on a ship that has a large helo pad. I soon will have the skill to confidently fly my Phantom 2 off the deck and over the deep blue sea. HOWEVER....what effect will the steel of the ships hull (1200ft) have on my compass? And how will this effect manifest itself (ie what will the quad do different?) I am trying to avoid taking off and driving it into the sea like a lawn dart or having an epic fly-away. Thoughts???