What is it you can't get your head around more specifically?. .. .I'm still struggling with just how on earth a RLG really works. It seems much of the avionics community has just accepted it as "black box magic" as well but I'm the curious kind.. .. .To make matters even worse, there are different kinds. Half the explanations I find either simplify without saying just where and how or mix the various kinds freely, adding to the confusion. Didn't even find the answers in course material from the manufacturers. :/. .. .Cheers,. . /ft