Path: news.eternal-september.org!eternal-september.org!feeder3.eternal-september.org!border-4.nntp.ord.giganews.com!nntp.giganews.com!Xl.tags.giganews.com!local-4.nntp.ord.giganews.com!news.giganews.com.POSTED!not-for-mail NNTP-Posting-Date: Sat, 17 May 2025 12:39:33 +0000 From: Joe Gwinn Newsgroups: sci.electronics.design Subject: Re: The Spanish Grid Drop-out - recently released information. Date: Sat, 17 May 2025 08:39:23 -0400 Message-ID: <4d0h2kln54a1kp308b4n31um1edttu3rjf@4ax.com> References: <0l6fflx9t.ln2@Telcontar.valinor> <10040vj$302p5$1@dont-email.me> <4osgflxtup.ln2@Telcontar.valinor> <1005ioj$3ae76$1@dont-email.me> <1rcf02s.ms3pru17wmqoN%liz@poppyrecords.invalid.invalid> <1008rg1$1sok$1@dont-email.me> User-Agent: ForteAgent/8.00.32.1272 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 51 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-winMT3D6qtpF5w5LfCpxZAkDMvYdui88IZMyAig9MgMh8T34Dn4CH2UjP9N5mgAULEWGMGXvHQCIYI3!EuR/Mj6yzfOt2ZGA9Fvb+gh80JaKxyQGGRcQAeAscjLEbvnuA8E/rU2vPsG477s0cQ== X-Complaints-To: abuse@giganews.com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 On Fri, 16 May 2025 19:15:29 -0700, KevinJ93 wrote: >On 5/15/25 11:23 PM, Liz Tuddenham wrote: >> Bill Sloman wrote: >> >>> On 16/05/2025 3:51 am, john larkin wrote: >>>> On Thu, 15 May 2025 12:37:24 +0200, "Carlos E.R." >>>> wrote: >>>> >>>>> On 2025-05-15 08:18, Bill Sloman wrote: >>>>>> On 15/05/2025 5:14 am, Carlos E.R. wrote: >>>>>>> On 2025-05-14 16:16, Glen Walpert wrote: >>>>>>>> On Tue, 13 May 2025 07:50:36 -0700, Don Y wrote: >>>>>>>> >>>>>>>>> On 5/13/2025 6:26 AM, Glen Walpert wrote: >>> >>>>> Another very wild idea was increasing the frequency to around 600Hz. It >>>>> would make transformers and all coiled things smaller. Planes do this. >>>>> Possibly would also radiate more. And would not help with control. >>>> >>>> But our clocks would run ten times faster. >>>> >>>> And everything would hum. >>> >>> This doesn't happen in aircraft. >> >> The ambient noise level in an aeroplane is much higher than in a house >> on a quiet night. (Also, look up Fletcher-Munson curves to see why 600 >> c/s would be a lot worse than 50 or 60 c/s.) >> >> Alternators for 600 c/s are feasible at a few kW in aircraft but they >> are difficult to scale up to power station size. >> > >A modern large aircraft may have close to a megawatt of generation capacity. That seems too paltry. .. Propulsion is 190 Megawatts. In earlier ships, this would be all steam and mechanical. .. Later ships are increasingly electric, to support modern things like big radars, electromagnetic launch systems, lasers, railguns, and so on. Joe