It looks like it's an app produced by Jeppesen for use on Boeing aircraft that calculates the weight and centre of gravity based on passengers, cargo, fuel etc to ensure it's within limits. Then based on those figures the optimal power/flap settings for take off /landing given the current airport's weather conditions and available runway length.
All pilots are required to do perform these calcs prior to flight. It's interesting that Boeing are getting the tulip rather than Jeppesen.
https://ww2.jeppesen.com/wp-content/...et-US-Size.pdf
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There's an app for that
""Boeing hit with worldwide safety alert after flaw discovered in take-off and landing app
Possible software issue meant data hackers could have tampered with pilots' safety calculations
Boeing has been hit with a worldwide safety alert after British security experts say they discovered a possible flaw in its software used by pilots in take-offs and landings.
A global “safety alert for operators” was issued by the US Federal Aviation Administration earlier this month after researchers found an issue with Boeing’s Onboard Performance Tool (OPT), a mobile app that pilots can use to make safety calculations before take-off and landing.
The tool uses data on metrics such as weather and weight to help make calculations for planes leaving and returning to the tarmac.
The possible flaw meant hackers could tamper with critical data and trick pilots into using the wrong settings, potentially causing a crash.
Pen Test Partners, based in Buckinghamshire, discovered the potential issue and reported them to Boeing. Ken Munro, boss of Pen Test Partners, said their findings showed that the mobile app could have been “calculating and putting out the wrong data” to pilots."
https://www.telegraph.co.uk/business...e-off-landing/
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