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Forum: Rumours & News

22nd Feb 2013, 13:25

Replies: 2,185

FAA Grounds 787s

Views: 1,032,226

Posted By HeadingSouth

EEngr, thanks for your explanation; I'll go back...

EEngr, thanks for your explanation; I'll go back to my study room and try to get a better understanding...

Forum: Rumours & News

21st Feb 2013, 15:35

Replies: 2,185

FAA Grounds 787s

Views: 1,032,226

Posted By HeadingSouth

What worries me most...

...is the fact that the Japanese Investigation Team found "this" fault of a wrongly connected part.

What exactly were the Boeing engineers doing the last few weeks ?

And quite frankly - a fire...

Forum: Rumours & News

13th Feb 2013, 06:29

Replies: 2,185

FAA Grounds 787s

Views: 1,032,226

Posted By HeadingSouth

RetiredBA/BY, RR_NDB et al. Albeit it might...

RetiredBA/BY, RR_NDB et al.

Albeit it might have come across as such I am not dismissing input from modeller airplane electrics - but there is one significant difference: I haven't seen many...

Forum: Rumours & News

11th Feb 2013, 10:00

Replies: 2,185

FAA Grounds 787s

Views: 1,032,226

Posted By HeadingSouth

For unmatched, paralleled Li-Ion cells, 5C is...

For unmatched, paralleled Li-Ion cells, 5C is already considerable. Or at least it was, not too long ago...
And references to model airplane batteries are a bit difficult as these are LiPo batteries...

Forum: Rumours & News

11th Feb 2013, 08:40

Replies: 2,185

FAA Grounds 787s

Views: 1,032,226

Posted By HeadingSouth

EEngr et al. Many thanks for post 715 and...

EEngr et al.

Many thanks for post 715 and following discussing the effect of AC on "DC oriented" power plants. I fully agree with what has been written, having seen these effects as well on...

Forum: Rumours & News

8th Feb 2013, 07:29

Replies: 2,185

FAA Grounds 787s

Views: 1,032,226

Posted By HeadingSouth

EEngr and cwatters: "The 8 sub batteries are...

EEngr and cwatters:

"The 8 sub batteries are balanced but the 6 cells in parallel in each don't appear to be. However that's not usually a problem because cells in parallel will tend to auto...

Forum: Rumours & News

7th Feb 2013, 14:46

Replies: 2,185

FAA Grounds 787s

Views: 1,032,226

Posted By HeadingSouth

fizz57 et al: When using Li-Ion (as well...

fizz57 et al:

When using Li-Ion (as well LiPo) cells it is important to have each cell voltage charged (or at least balanced) separately.
This means that when nominal cell voltage is 3.7V and...

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