That sounds broadly similar to B5's way of hyperspace navigation. Of course clouds don't have gravitational inclines, nor do they randomly twist, bunch or warps space. Plus of course even if you get lost in a cloud, you can usually find the ground, one way or another. Get lost in hyperspace, you'll be lucky if you're found within the next million years.
In short, I don't think dead reckoning would work in hyperspace.
In short, I don't think dead reckoning would work in hyperspace.
