From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm1-x335.google.com (mail-wm1-x335.google.com [IPv6:2a00:1450:4864:20::335]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id 8788A3CB37 for ; Mon, 24 Apr 2023 10:12:37 -0400 (EDT) Received: by mail-wm1-x335.google.com with SMTP id 5b1f17b1804b1-3f173af665fso28761075e9.3 for ; Mon, 24 Apr 2023 07:12:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1682345556; x=1684937556; h=content-transfer-encoding:to:subject:message-id:date:from :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=hpYXOoyh5afobYCPnFW1YGg3Uj2jJztkcXdCL7TaVNM=; b=QP0Kwn3fpOpyOwAk1tys+s/Ix2+3mqAj3rBYUd2NTZMdhY+WvJstbRsxGEbZHaX4kk rfGXoBoH8ipuoe/RNLBey+zDosMIFqQcqO0s7j5gMIXNh2CUkgBZzdHoxsK6NA+s2WsI +4jz+fp6vTs0FfZAiF9WdAGiy9jrcWttG7O8pTFCDD6qUOFahB6DI6CIy61zFQRc5RIS +hrnvS+sCde+yid5SZvVaapQib8ETPWVouJ5olFmy7X/B1nXvLgTqiSfQI6tlqTOdrC7 vDXnWMr4OwGZaR/5ALbRAeK0V8YV0OYcgUViPudlO2rOayWilapZsKcbyPybqEJAc+2m n8gg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1682345556; x=1684937556; h=content-transfer-encoding:to:subject:message-id:date:from :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=hpYXOoyh5afobYCPnFW1YGg3Uj2jJztkcXdCL7TaVNM=; b=T/uVtLZPtubhzwwlPD9hh3gYmW5aQdrqQZpyHH4ILugzTryweo94G68wWWlaHP5lIT ASOJ4UKK+LgG/r65XI6ZjHHvTaZDO3A0FNaZKZ0lz4IEdTCxevfCMFfLbDqYI0JBJJfk Em8vWHNm/78iGZhzvPuDaSRh2bIim9x8kKcktl4oAsIz9AKiCBeoLfudN350qBhyDtkd LDix/Iz8x44z+omUF7/EySUt7yp5wfO2AJB45pnYhalxILi7TBfEaxZxHyZAFclDXNpM 1t20g8jhr3rpyoIB1RZQUV6wlnJ8ikl4w7BggGBvZqe8BtLHpQA1EdNRRgCpkR+yRdKQ lrvw== X-Gm-Message-State: AAQBX9crezJfvNIZdY6FsfQL1yWg80Fgs6ZMbD0LrU15SZtLC8z8ShzP JuP0Dds/tXacji2czJODc2C+8RUws6umcG8tqAjVZabx5Y4= X-Google-Smtp-Source: AKy350ZOhfPDRCl2zINq/8uIy1s3ROlj/kWMbcKkXb2Q26Fl3nRGoNb9mBe8avX7oJCHBa4/AUuK0+sf7McdxebQDVo= X-Received: by 2002:a1c:7211:0:b0:3f1:7a4a:7f9 with SMTP id n17-20020a1c7211000000b003f17a4a07f9mr7859905wmc.7.1682345555935; Mon, 24 Apr 2023 07:12:35 -0700 (PDT) MIME-Version: 1.0 From: Dave Taht Date: Mon, 24 Apr 2023 07:12:24 -0700 Message-ID: To: Dave Taht via Starlink Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: [Starlink] some post Starship launch thoughts X-BeenThere: starlink@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: "Starlink has bufferbloat. Bad." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 24 Apr 2023 14:12:37 -0000 I was down in starbase, tx for the week of the launch. It was a great time, 10s of thousands of people there, my hotel had some of the musk family staying, and had a party on the roof... I was there packing guitar photobombing "this machine kills vogons" everywhere I could. Probably the best summary of the problems encountered is here: https://www.youtube.com/watch?v=3Dw8q24QLXixo courtesy Scott Manley. The best video describing the reactions of everybody, is here: https://twitter.com/Erdayastronaut/status/1649141793508716583 Also, I met a young lady that paints watercolors of rockets, her work is here: https://www.jadeboudreaux.com/ (she gifted me a holographic raptor for my guitar, I gifted her a scarf from in return https://www.natashasilkart.com/# ) (support your local artists! Hilariously none of my pictures from dusk came out on my camera, while jade painted away like mad) I was most impressed by losing 6 engines over the course of the flight... and none exploding. Modern sensor technology is amazing. Anyway, like most of the monday morning quarterbacks, thinking about the destruction of the pad, I had had two ideas that I would like to run by folk here: Everyone wants a water deluge system and flame diverter, but I was thinking perhaps liquid nitrogen, as a natural byproduct of LOX liquification, might be used rather than water? It starts off quite a bit cooler... but as for its ability to cushion shock waves vs a vs its vapor point, no idea. ? Anyone? Secondly tuning the shockwaves against the pad (somehow), might limit the vibrative (is that a word) force? A slower start of the motors might damage the pad less, also. Landing and then taking off from the moon or mars look rather problematic at the moment! It looks to me as though everything can be repaired in a matter of months, and there is a watercooled plate designed for the pad that will go in next time. The nextgen rocket has replaced some hydraulics with electric motors. That said, it seems like the day where the starlink v2 sats can launch on starship is at least a year, maybe 2-3 off, and that means we will see more of the v2 minis being flown on falcon. Does anyone have a good summary of the capabilities of the v2 minis vs a vs 1.5? Any updated numbers on userbase? --=20 AMA March 31: https://www.broadband.io/c/broadband-grant-events/dave-taht Dave T=C3=A4ht CEO, TekLibre, LLC