Originally Posted by
Toadpool
The crazy thing, at least in the UK, is that a plain PPL can fly VFR in most class D airspace with a flight vis of at least 5km. But for SVFR in the same airspace a minimum vis of 10km is required
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But a plain PPL can fly SVFR in Control Zone, if the route or ATZ has been notified for the purposes of Schedule 8. Most Class D Control Zones in the UK will have published Special VFR rotes or lanes that allow flight by a basic PPL down to a vis of 3km, which is the legal limit outside controlled airspace.