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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Land\-speed\]\s+non\-LSR\s+aircraft\s+AC\s+frequency\s*$/: 3 ]

Total 3 documents matching your query.

1. [Land-speed] non-LSR aircraft AC frequency (score: 1): Author: "Benn" <karhu@california.com>; Date: Sat, 12 Apr 2008 08:51:31 -0700; Hey gang, why have old (and maybe current) aircraft used 400 hz? Are alternators or DC-to-AC converters more efficient at this frequency than our typical home 60 hz? Benn ____________________________; /html/land-speed/2008-04/msg00072.html (7,077 bytes)
2. Re: [Land-speed] non-LSR aircraft AC frequency (score: 1): Author: <neil@dbelltech.com>; Date: Sat, 12 Apr 2008 09:46:16 -0700; Aircraft used 400Hz AC power because far less iron was needed in the magnetic cores of the transformers used in the electronics. This reduced the size & weight of the transformers considerably. Some; /html/land-speed/2008-04/msg00074.html (8,081 bytes)
3. Re: [Land-speed] non-LSR aircraft AC frequency (score: 1): Author: "Rich Fox" <v4gr@rcn.com>; Date: Sat, 12 Apr 2008 10:37:12 -0700; When I retired and I bet still today, The galley equipment was 400 cycle 110. Every so once in a while I would have to make a modification to the coffee maker test stand. They would not shut down the; /html/land-speed/2008-04/msg00080.html (7,512 bytes)

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