Bristol Britannia Record Flight - Dec 1956
Hi All
I was recently reading a very short article about a record breaking flight by a Britannia of El Al which whilst route proving in December 1956 flew New York - Tel Aviv direct by maintaining the jet stream across the Atlantic and beyond.
The article stated "once at 25000ft they noted the tell tale rise in air temperature and radar altitude".
Two things: Is there a more detailed account of this remarkable flight anywhere and I thought Radar Altimeters did not operate above 2500ft.