Sleeve Wing,
btw, wrt high altitude airfields, is the use of QNE still current ? eg Nairobi etc( Reason being normal altimeter scales cannot be adjusted to cover.)
Not any longer sir, they use QNH nowadays. At the end of the day we set QNH at Nairobi, Harare and Jo'burg in exactly the same way as we do for most other places around the world. Some parts of the former Soviet Union use QFE.