Phone charger plugged in 110v/400hz...
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Indeed, Flash2001,
Also when the concept of power outlets was introduced, mobile pone chargers and the like had barely been invented. As technology improves, more airlines will require this stuff and aircraft will be fitted with suitable outlets I'm sure. Let us not forget that the manufacturers know their aircraft far better than we do and if they tell us we can't use the current type of outlet for reasons they were not intended for, then we should take the responsible attitude and do as we are told by them, and if we can't do that we are in the wrong industry.
My advice to all is before you plug any commercial bit of equipment into any aircraft in any way, go and discuss the matter with your Chief Technical Captain. He will have access to the engineering manager and the aircraft manufacturer and will be able to, thus, get an answer of yes or no.
Also when the concept of power outlets was introduced, mobile pone chargers and the like had barely been invented. As technology improves, more airlines will require this stuff and aircraft will be fitted with suitable outlets I'm sure. Let us not forget that the manufacturers know their aircraft far better than we do and if they tell us we can't use the current type of outlet for reasons they were not intended for, then we should take the responsible attitude and do as we are told by them, and if we can't do that we are in the wrong industry.
My advice to all is before you plug any commercial bit of equipment into any aircraft in any way, go and discuss the matter with your Chief Technical Captain. He will have access to the engineering manager and the aircraft manufacturer and will be able to, thus, get an answer of yes or no.
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Exactly,
The certification labels from Apple.
iPhone charger 5V at 1000mA
iPad charger 5.1V at 2100 mA
iPad w retinal 5.2V at 2400mA
The reason why some of you have had problems charging and some have not, depends on which charger you have.
If you are using the 10W charger, the 2100mA is not enough to charge the iPad if it is in use.
If you are using the 12W charger, the 2400mA is enough to charge while the iPad is in use.
The certification labels from Apple.
iPhone charger 5V at 1000mA
iPad charger 5.1V at 2100 mA
iPad w retinal 5.2V at 2400mA
The reason why some of you have had problems charging and some have not, depends on which charger you have.
If you are using the 10W charger, the 2100mA is not enough to charge the iPad if it is in use.
If you are using the 12W charger, the 2400mA is enough to charge while the iPad is in use.
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Indeed, Flash2001,
Also when the concept of power outlets was introduced, mobile pone chargers and the like had barely been invented. As technology improves, more airlines will require this stuff and aircraft will be fitted with suitable outlets I'm sure. Let us not forget that the manufacturers know their aircraft far better than we do and if they tell us we can't use the current type of outlet for reasons they were not intended for, then we should take the responsible attitude and do as we are told by them, and if we can't do that we are in the wrong industry.
My advice to all is before you plug any commercial bit of equipment into any aircraft in any way, go and discuss the matter with your Chief Technical Captain. He will have access to the engineering manager and the aircraft manufacturer and will be able to, thus, get an answer of yes or no.
Also when the concept of power outlets was introduced, mobile pone chargers and the like had barely been invented. As technology improves, more airlines will require this stuff and aircraft will be fitted with suitable outlets I'm sure. Let us not forget that the manufacturers know their aircraft far better than we do and if they tell us we can't use the current type of outlet for reasons they were not intended for, then we should take the responsible attitude and do as we are told by them, and if we can't do that we are in the wrong industry.
My advice to all is before you plug any commercial bit of equipment into any aircraft in any way, go and discuss the matter with your Chief Technical Captain. He will have access to the engineering manager and the aircraft manufacturer and will be able to, thus, get an answer of yes or no.
The manufactures/airline customers must have had something in mind when they were added.
Even the touted 28V dc to USB charger (BTW does look like a useful device, especially for small aircraft) is not 'certified' for cockpit use, from their data sheet:
The conclusion of all test show EMI levels well
within the standards necessary for flight deck use. The following test results
are provided as reference for maintenance engineering groups to coordinate
with their own independent EFB system tests.
within the standards necessary for flight deck use. The following test results
are provided as reference for maintenance engineering groups to coordinate
with their own independent EFB system tests.
Under seat outlets in the cabin are intended for use with arbitrary devices up to a certain power level so the 'plug ... in any way' comment is a bit too broad a statement.
Agency certifications (EMI/UL/din/whatever) rely mainly on testing over specified ranges, not design review (although there is some).
With the exception of some Apple chargers that are tested at 400Hz most certs will typically be for 100-240V 50/60Hz so use of chargers on 400Hz is outside the certified range, even though they will work just fine.
One last comment is that much of the discussion centered on questioning unsupported claims such 400Hz power reducing battery life and similar, not legality which is a different thing altogether.
There is a lot of misinformation around, not that anyone would rely on a rumor web site to bless a cockpit system.
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Even the touted 28V dc to USB charger (BTW does look like a useful device, especially for small aircraft) is not 'certified' for cockpit use, from their data sheet:
From the FAA: Authorization for the use of Apple and Microsoft COTS PED's as an EFB are obtained by the operators, rather than the manufacturer.
The engineering department must provide to the regulators, the testing results. Therefore, there is no 'list' where you can just get what is on the list. Its all custom approved. Devices such as the iPad and others, have been through the testing for the device, such as the pressure test, pressure drop tests, and a whole list of other requirements. That does not mean you can simply begin using one on the flightdeck. It must be certified for use on that aircraft, with that equipage. I have seen systems that the charging cable itself cannot be used, and a special one is provided, due to interference.
(BTW does look like a useful device, especially for small aircraft)
One last comment is that much of the discussion centered on questioning unsupported claims such 400Hz power reducing battery life and similar, not legality which is a different thing altogether.
With the exception of some Apple chargers that are tested at 400Hz most certs will typically be for 100-240V 50/60Hz so use of chargers on 400Hz is outside the certified range, even though they will work just fine.
Other: The Type A (flat parallel-blade design) Apple 5W as well as the 10W and 12W USB power adapters (with Type A AC plug attached) comply with the IEC/UL 60950-1 standard for use with power sources rated to provide 115V AC at 400Hz. Type A plug only, and Comply is the operative word.
In other words a system approach is needed to ensure compatibility and safety for cockpit use.
FBs employing rechargeable lithium batteries must ensure the lithium ion batteries meet airworthiness standards appropriate for the battery size and intended function. The use of rechargeable lithium batteries in portable devices is the responsibility of the operator (see AC 120-76 for applicable guidance). The engineering, cert and validation process to put an EFB on the flight deck is significant, and the conditions of use should be adhered to.
EFB that are connected to the IFE wifi are a particular problem as well. The wifi even though connected, maintains a search mode as part of the connection, and uses a significant amount of power.
Last edited by underfire; 27th Jun 2017 at 05:40.
