Low altitude Radio altimeter b777 specific question
Join Date: Jul 2014
Location: Germany
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The radio altimeter will always work the same no matter if gear is up or down. The extra complexity would be prohibitive. Also why would you need a different reading?
How much is the tail clearance on a normal landing, do you really think that difference is relevant for ditching?
How much is the tail clearance on a normal landing, do you really think that difference is relevant for ditching?
Join Date: Mar 2006
Location: USA
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Assuming zero geometric error (e.g. Your Rad / Alt transmitter to the upper part of the "Target" aircraft below would be less than 2000 ft, any rounding down of the digital read-out (Rad / Alt digital read-outs are never rounded up), 2000 feet of Pressure Height delta converts to 1920 feet geometric difference on an ISA - 9.15 C day.
Such a non-standard atmosphere would be evident to you at F/L 310 and Mach 0.827 (as shown on your attached photo) as a SAT of -55.57 C and a TAT of -15.18 C.
Best Regards,
Old Smokey
Such a non-standard atmosphere would be evident to you at F/L 310 and Mach 0.827 (as shown on your attached photo) as a SAT of -55.57 C and a TAT of -15.18 C.
Best Regards,
Old Smokey
