XWB
in service - 11 years
Posts: 16,115
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Post by XWB on Feb 28, 2013 10:02:28 GMT 1
I have no information on the chemistry of the A350 battery. The only thing I read is Airbus is having a better containment box, with venting and more sensors.
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Post by airboche on Feb 28, 2013 11:10:37 GMT 1
Bit confusing. Test flights with LiIon. All customer a/c with NiCad.
And now some move back to LiIon? Did they encounter problems when trying to switch to NiCad? Boeing seems to be reluctant to switch "back" too even with all these troubles.
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Baroque
in service - 2 years
Posts: 3,991
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Post by Baroque on Feb 28, 2013 20:04:29 GMT 1
Bit confusing. Test flights with LiIon. All customer a/c with NiCad. And now some move back to LiIon? Did they encounter problems when trying to switch to NiCad? Boeing seems to be reluctant to switch "back" too even with all these troubles. Li-ion is still the future. But because of the present uncertainties concerning possible regulatory changes for Li-ions, Airbus felt compelled to switch to proven Ni-Cad to protect their entry to service schedule with a minor weight penalty. Airbus can have the A350 certified on time with Ni-Cads in some test frames, but keeping Li-ions on MSN001 may also help generate useful data for evaluation of the technology. |
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mjoelnir
in service - 2 years
Posts: 4,089
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Post by mjoelnir on Feb 28, 2013 21:52:21 GMT 1
lithium/ion versus Ni/Cad
It is perhaps not the worst idea to get both certified. The plan was to go with lithium/ion.
I assume MSN001 is prepared for Lithium/ion, a switch could delay the first flight.
MSN 002 or 003 than gets Ni/Cad.
The iron bird frame zero has been running with lithium/ion.
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Post by kevo350 on Feb 28, 2013 22:31:36 GMT 1
Curved wing tips make this look a classy aircraft
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Baroque
in service - 2 years
Posts: 3,991
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Post by Baroque on Feb 28, 2013 23:49:06 GMT 1
Curved wing tips make this look a classy aircraft Reminds me of this majestic bird.  |
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philidor
in service - 6 years
Posts: 8,950
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Post by philidor on Mar 1, 2013 0:04:54 GMT 1
Li-ion is still the future. But because of the present uncertainties concerning possible regulatory changes for Li-ions, Airbus felt compelled to switch to proven Ni-Cad to protect their entry to service schedule with a minor weight penalty. Airbus can have the A350 certified on time with Ni-Cads in some test frames, but keeping Li-ions on MSN001 may also help generate useful data for evaluation of the technology. I agree. Airbus switched to NiCad only to avoid certification problems and thus preserve the program timeline. Later, when the program is on its tracks, they may try certify a new sub-type with a lithium-ion battery. |
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solly
in Convoy en route to Toulouse
Posts: 91
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Post by solly on Mar 1, 2013 10:58:08 GMT 1
Baroque what a lovely picture . look at that wings .boy the A350 is going to be a beauty.regards solly
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Post by kevo350 on Mar 1, 2013 15:49:08 GMT 1
Will be one of the best looking aircraft of recent times.
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XWB
in service - 11 years
Posts: 16,115
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Post by XWB on Mar 1, 2013 20:40:30 GMT 1
Interesting quote from Chris Young, the Rolls-Royce program manager: "The engines are ready and capable to go to their limits from day one, should Airbus choose to do so," says Young. "The program - which we're fully supporting with our initial flight-compliant engines - has a very clear aim to make sure that first flight is prior to the Paris air show." www.bloga350.blogspot.nl/2013/02/trent-xwb-engine-ready-for-first-flight.html |
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