B737 unknown thing over MCP
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B737 unknown thing over MCP
Hey guys, I wonder what does it do, that cube*shaped solid over MCP - attached here as a photo?
Does anyone know what is it for?
https://www.dropbox.com/s/rquu3rt3988uq28/cube.jpg?dl=0
Thanks in advance.
Does anyone know what is it for?
https://www.dropbox.com/s/rquu3rt3988uq28/cube.jpg?dl=0
Thanks in advance.
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Am I correct in thinking its a reference point for pilots to adjust/align their seats?
FAR 25.773 (d) mandates installation of a 'fixed marker or other guide' in transport category aircraft to ensure that the pilots adjust their seating position such that they are positioned at the design eye reference point.
FAR 25.773 (d) mandates installation of a 'fixed marker or other guide' in transport category aircraft to ensure that the pilots adjust their seating position such that they are positioned at the design eye reference point.
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So guys still not satisfied with the answer. What I've been told is that that's for a lightning strike, to get the static load to protect MCP.
Asked the guy for the reference but couldn't show me, that's why I wanted to ask yo,u folks.
So if anyone can explain with the reference instead of opinions, I'd appreciate.
Asked the guy for the reference but couldn't show me, that's why I wanted to ask yo,u folks.
So if anyone can explain with the reference instead of opinions, I'd appreciate.
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Manicured garden - ask your engineers...
Or find a reference in maintenance manual regarding glare shield construction to be able to "see" in manuals below the screwed on (top) cover.
Or find a reference in maintenance manual regarding glare shield construction to be able to "see" in manuals below the screwed on (top) cover.
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Guess Boeing was a bit daft then placing it there. Have to say though, display light level adjustment works a lot better on the 737 than on the bus.
I have seen cases where the light sensors on the glareshield have been mounted backwards (maintenance error) causing the displays to go dim, even unreadable.
So guys still not satisfied with the answer. What I've been told is that that's for a lightning strike, to get the static load to protect MCP.
Last edited by NSEU; 4th Sep 2015 at 00:03. Reason: Addition of link
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What I've been told is that that's for a lightning strike, to get the static load to protect MCP.
NSEU is correct.
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It serves the dual purpose of preventing you putting your clipboard properly on the glare shield and in providing a nice shiny surface to ensure an annoying reflection is cunningly placed on the windshield exactly in your line of sight.
Probably made by the same people who designed the seat adjustment mechanism to ensure the right position is not quite achievable
Probably made by the same people who designed the seat adjustment mechanism to ensure the right position is not quite achievable
The idea of placing a sensor in this position is to monitor the light level entering the cockpit window and control instrument illumination to track this level. So your eyes don't have to adjust too much when shifting your gaze from outside to the screens. Sensors on instruments work in conjunction with this to keep ambient light inside the cockpit from overpowering the displays.