alancorrie Posted March 3, 2008 Share Posted March 3, 2008 According to the BHPA Handbook, category D (controlled) airspace requires entry and transit to be granted by ATC. I've just bought an airspace map and note that all the category D zones also include reference heights. I think I already know the answer to this but can someone confirm whether ATC clearance is required at all heights, or only those within the specified range. By way of example, where I live, the map describes the airspace as EDINBURGH CTA [D] 2,500 - 6000. Quote Link to comment Share on other sites More sharing options...
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