I thought VFR over cloud cover was only legal if the ground can be sighted
at least once every 30 minutes.

In the states it is legal without such a restriction. In fact, such a
restriction doesn't make sense, since you don't know (until it happens)
when you'll be able to sight ground, nor is that glimpse necessarily all
that helpful. What's the rule in Oz?

Jose
--
He who laughs, lasts.
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