Boeing Drops Wireless System For 787 217
K7DAN writes "It appears that state-of-the-art connectivity in Boeing's newest aircraft means a wired, not a wireless network. The Seattle Times reports that Boeing has abandoned plans to bring entertainment and information to passengers through a wireless system in its 787 Dreamliner due to possible production delays and potential conflicts with other radio services around the world. A side benefit is an actual reduction in weight using the wired system. Amazingly, the LAN cables needed to connect every seat in the aircraft weigh 150 lbs less than all the wireless antennae, access points, and thickened ceiling panels required to accommodate a wireless network (the design called for an access point above each row)." The article concludes: "The net impact, [a Boeing spokesman] said, is less technical risk, some weight saved, the system's flexibility and quality preserved plus 'a bit of schedule relief.'"
No surprise (Score:4, Insightful)
Not surprising. (Score:3, Insightful)
Besides, all this means is that the business traveler will have to carry around a 2 ft CAT 5 cable...big deal. I bet some creative laptop maker comes up with one of those airline power adapters that also integrates a CAT 5 cable in to it. Just plug the one end in to the back of your laptop, and plug in the power and network cables in to the appropriate ports on the other end.
It all goes to show... (Score:2, Insightful)
I can see... (Score:3, Insightful)
Waaaait-a-minit... (Score:2, Insightful)
So, obviously, they didn't spec this out with commodity hardware -- I'm guessing that and the extra shielding were to mitigate any radio interference that might mess with the avionics. But come on.. there has to be a wireless solution that uses less physical hardware than this.
- 'Drew
Re:Weight saved? (Score:5, Insightful)
It may seem small in comparison, but it's 150lbs less you have to pay fuel for, for the entire service life of the plane. While this probably wouldn't be a huge chunk of profits gone, why waste money? After a while the fuel needed to ship that extra 150lbs certainly adds up. I wouldn't want to pay for it!
Now all they need to do.. (Score:2, Insightful)
Re:access point above every row? (Score:4, Insightful)
Common Sense... (Score:1, Insightful)
Re:1 AP per row?! (Score:3, Insightful)
What about the connectors? (Score:5, Insightful)
Power? (Score:1, Insightful)
It's quite probable that, for safety reasons, they were looking at a solution with a large number of very low power WAP's, which makes sense--you will have a lot less stray energy.
I don't think that the primary design concern is how to cover as much of the plane as possible with little equipment.
Re:access point above every row? (Score:5, Insightful)
Re:plane-LAN to WAN? (Score:3, Insightful)
Re:plane-LAN to WAN? (Score:3, Insightful)
Re:plane-LAN to WAN? (Score:3, Insightful)
Plus, I was under the impression that although 802.11 b/g has 11-13 'channels' there's only really 3 non-overlapping frequency-ranges. So each frequency would be fought over by 10+ APs, all stuffed inside a giant pringles-tube, all trying to shout each other down.
Satalite has massive bandwidth. (Score:4, Insightful)
Worst case, you can easily throttle bandwidth to a particular row or seat to keep one user from sucking up too much.
What will be interesting is if first class passengers get more bandwidth than cattle class.
Re:Satalite has massive bandwidth. (Score:4, Insightful)
Re:plane-LAN to WAN? (Score:3, Insightful)
Wifi seems like a really complicated way to move bits the few feet between the floor and the seatback.
Re:Not surprising. (Score:3, Insightful)
rj
Not the same thing. (Score:3, Insightful)
The costs for an ADD-ON system are not supported by the revenue. Putting a wireless system on an EXISTING plane means you have to:
- Take the plane out of service
- Partially disassemble the plane
- Run supplemental wiring
- Install new access points and new compartments to hold them
- Bolt-on trasmit/receive device
- Reassemble plane
The costs of a system BUILT INTO the plane when it is FIRST CONSTRUCTED would be MUCH, MUCH lower. You just run your network wires at the same time you run all the other wiring for the plane. And you don't have to REPLACE receptacles etc with new ones, you just install the ones with ethernet jacks to begin with.
And, in this case, they're installing a wired network, not a wireless one. So even cheaper still.
Re:Not surprising. (Score:3, Insightful)
power over ethernet? (Score:3, Insightful)
if they use power over ethernet then they can make the in-seat entertainment system a thin client and use at least *some* off-the-shelf hardware (remember that aircraft electronics, even in entertainment, have to withstands many years of use, far longer than any consumer electronics have to).
it also means they could use SIP phones for providing in-flight telephony and put them on their own vlans, likewise have vlans for security cameras and remote controlled devices.