John Tye, G4BYV, wrote to say that he has been following the ongoing theme of airborne amateur radio, adding the comment "In 1973, a group of French hams put the same type of thing up from Nancy. Called Mirabel II, it was on 23cm. I still have a QSL card from them with a photo of the Mirabel in a large motor oil can and a photo of the group". It was on 28 October 1973 that Mirabel II reached a height of 29,200m (nearly 96,000ft) before the first of its two helium-filled balloons burst and it began its descent.
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