NOTM 010/01: National heliport restrictions The Principality of Sealand announces that its National Heliport, located at 51° 53′ 40″ N and 01 ° 28′ 48″ E is closed for all traffic, including emergency traffic, and not available without prior arrangement. Airmen should note that there are currently no air navigation aids installed and that VFR only shall apply for any operation within the Sealand CTZ. Further details may be obtained by contacting Sealand Bureau of Internal Affairs (burint@sealandgov.org) SEALAND 1001, Sealand Post Bag, IP11 9SZ, UK.