SeenItAll
2nd Nov 2011, 17:59
Two weeks ago on a CO 757 from IAD to CDG, I saw two readings on the FlightInfo screen that were beyond what I had ever seen before. About an hour or so after takeoff, ground speed was showing 704 mph (1133 kph), and about an hour before landing, outside temperature was showing -88 F (-66.7 C).
While a really big tailwind can generate the ground speed, I am more perplexed about the temperature. This reading was over Britain at 38,000 feet, and in October. Not over the North Pole in December. Is such a reading really possible? Or perhaps due to some instrumentation error?
What have been the most extreme readings that you have seen?
While a really big tailwind can generate the ground speed, I am more perplexed about the temperature. This reading was over Britain at 38,000 feet, and in October. Not over the North Pole in December. Is such a reading really possible? Or perhaps due to some instrumentation error?
What have been the most extreme readings that you have seen?