It looks like flight aware is using Mercator... which is what I assume most navigational charts use. If it is Mercator, then straight lines on the map are lines of constant bearing in reality, so pretty straight forward to follow.
People in charge of the database is able to load arcs with a given radious. It's not possible to do it from the mcdu (the flight computer keyboard and display). I guess this was designed on the ground and then loaded at the aircraft.
In theory you're right; but on the scale they flew this pattern; maintaining a constant heading will look like a straight line. Also, as mentioned in other replies; the map projection has a big impact on this (e.g. A lambert projection will show a constant heading as a curve).
Not normally a sports fan, but living in Seattle while the Seahawks go to the Superbowl is tons of fun just because of all small ways the various techie industries are coming together.
E.g. seismic monitoring of CenturyLink Stadium (which is engineered to be one of the loudest), Boeing putting on this stunt, office buildings with "12" spelled out over multiple floors, 12-cent Starbucks.
Always happy to see these guys in the news. The site is powered by Apache Rivet, which I helped work on. It never saw wide adoption, so the one big user always makes me pleased that it did take off somewhere.
You may or may not be aware, but this stuff is generally done on test flights where they need to be in the air for a certain amount of time but have no specific location they need to do it. Might as well spell something out in the sky while you're at it. I doubt Boeing would do this sort of thing otherwise, since it costs tens, perhaps hundreds, of thousands of dollars to keep a 747 in the air for hours.
Net? Probably nothing. Boeing has lots of test flights to do just to rack up hours of operation and so forth so a flight like this easily fits into their budget of flights they have to do anyway.
For everyone who's trying to say this was a waste of fuel please think about the purpose of test flights. In this instance they were testing a new freighter variant. How else do you expect to test and tune new aircraft/parts? Besides it's Boeings money to waste even if it was.
I realize it's the high desert, so few people live there, but I'm surprised all that airspace was open for such a flight. Aren't there any military installations around?
...yep, total rubbish. But at least the Climate Change (LLC, TM, Patents Pending) we've been hearing about gets a boost from it. One plus is that it gives all of us non-interested people an interest: Whoever is playing against Seattle (Denver, I think) really needs to win this one.
[+] [-] nostromo|12 years ago|reply
Here are some progress pics from earlier today:
http://i.imgur.com/R1kERlg.jpg
http://i.imgur.com/YNMNnJr.png
More info for the curious: http://www.geekwire.com/2014/boeings-new-seahawks-themed-747...
[+] [-] gadders|12 years ago|reply
"We’ve been hearing a few people complain that Boeing is “wasting fuel,” by flying the 747-8 Freighter today in the “12″ pattern."
Jeez. People really will complain about anything these days.
[+] [-] hemancuso|12 years ago|reply
[+] [-] ceejayoz|12 years ago|reply
[+] [-] ars|12 years ago|reply
Isn't it hard to constantly fly a slightly curved route?
[+] [-] icegreentea|12 years ago|reply
[+] [-] TylerE|12 years ago|reply
[+] [-] jcrawfordor|12 years ago|reply
[+] [-] omegant|12 years ago|reply
[+] [-] bulte-rs|12 years ago|reply
[+] [-] tlrobinson|12 years ago|reply
[+] [-] INTPenis|12 years ago|reply
[+] [-] optimiz3|12 years ago|reply
E.g. seismic monitoring of CenturyLink Stadium (which is engineered to be one of the loudest), Boeing putting on this stunt, office buildings with "12" spelled out over multiple floors, 12-cent Starbucks.
Seattle is just a fun city to live in.
[+] [-] codereflection|12 years ago|reply
[+] [-] davidw|12 years ago|reply
[+] [-] aaronbrethorst|12 years ago|reply
[+] [-] terpua|12 years ago|reply
http://deadspin.com/a-seahawks-747-is-currently-flying-a-gia...
[+] [-] kilroy123|12 years ago|reply
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[+] [-] tolmasky|12 years ago|reply
[+] [-] BlackDeath3|12 years ago|reply
[+] [-] vmarsy|12 years ago|reply
[+] [-] alecsmart1|12 years ago|reply
http://m.imgur.com/a/ML3wn
[+] [-] mikeash|12 years ago|reply
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[+] [-] InclinedPlane|12 years ago|reply
[+] [-] joshmlewis|12 years ago|reply
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[+] [-] c141charlie|12 years ago|reply
[+] [-] mynameishere|12 years ago|reply
http://msn.foxsports.com/buzzer/story/daily-buzz-12th-man-in...
...yep, total rubbish. But at least the Climate Change (LLC, TM, Patents Pending) we've been hearing about gets a boost from it. One plus is that it gives all of us non-interested people an interest: Whoever is playing against Seattle (Denver, I think) really needs to win this one.
[+] [-] yawz|12 years ago|reply
[+] [-] gtani|12 years ago|reply
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[+] [-] era86|12 years ago|reply