Jonathan Endersby (@arbitraryuser) header
Jonathan Endersby (@arbitraryuser) profile picture

Product engineer, Radio nerd, Sailor. Build cool things and put them on the internet!

Table Mountain, Cape Town
Joined September 2008
Photo by Jonathan Endersby (@arbitraryuser)Photo by Jonathan Endersby (@arbitraryuser)Photo by Jonathan Endersby (@arbitraryuser)Photo by Jonathan Endersby (@arbitraryuser)Photo by Jonathan Endersby (@arbitraryuser)Photo by Jonathan Endersby (@arbitraryuser)Photo by Jonathan Endersby (@arbitraryuser)Photo by Jonathan Endersby (@arbitraryuser)Photo by Jonathan Endersby (@arbitraryuser)Photo by Jonathan Endersby (@arbitraryuser)
Fire fighting helicopters filling up next to Glencairn Expressway #SimonsTownFire
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Why is @CepheidNews intentionally price-gouging the world's poorest people for tuberculosis tests? And what can you do about it? #PeopleOverProfits It's all in this video: youtu.be/tSC06P9A5W4?si=vuDP…
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Congratulations @KirstenGGR! I finally get to publish something I've been working on for a few weeks. Race posters for each finisher, published as they come in. You can find high-resolution printable PDFs on the GGR Underground site ggr.underground.co.za/#poste… @ggr2022 #GGR2022
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GGR Underground update: I've split the DTF Deltas for the main race and Chichester class so that it's easier to track the Kirsten vs Abhilash showdown! See more at ggr.underground.co.za #GGR2022 @ggr2022
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Some big GGR updates: 1. Leader Deltas is now "Leader DTF Deltas". 2. Added a DMG (Distance Made Good) table. 3. Chichester sailors now shown everywhere. 4. Speed and VMG graphs are ordered by DTF. 5. Four Hour Reporting. See more: ggr.underground.co.za @ggr2022 #GGR2022
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🇿🇦 @KirstenGGR just set a new record! Furthest 7 day distance of 1169.14nm, and she'll beat it again tonight. An insane level of consistency, an average of 6.96kts every hour of every day, for a week! Can she crack an average of 7? #GGR2022 @ggr2022 ggr.underground.co.za
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New #GGR2022 statistics / analysis feature! I've added a network-linked KML file so that you can view the race in Google Earth! (desktop or web). This will automatically update in the background so no need to re-download. ggr.underground.co.za/#kml @ggr2022 Feedback welcome!
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Important note: This will not replace the standard tracker on the official website. It's simply a way to view the routes on a three dimensional globe, which can sometimes give you a much better sense of scale etc. Suddenly the Pacific looks so much more daunting!
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Ooh, this also works on Google Earth on your favourite mobile device.
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🇿🇦 @KirstenGGR has taken an avg of 54nm per day off Simon's lead in the last 7. Still likely to see Tas in second place (<12 hours behind) but what a thrilling result it would be if she could pull off getting in first. Less than 350m gap now. ggr.underground.co.za #GGR2022
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Oh, and apparently there's some football on 😉
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🇿🇦 @KirstenGGR has taken 125nm out of Simon's lead in the last 24 hours. It'll probably be more by the time Simon gets back up to speed. @ggr2022 #GGR2022 See more at ggr.underground.co.za
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Incredible! @KirstenGGR Just set another two records: 🇿🇦 9.71kts AVG speed over 4 hours! Perfect timing because I've just modified my graphing to max out at 10kts. #GGR2022 @ggr2022 🇿🇦 She also set a new 24 hour distance record of 202nm! See more at ggr.underground.co.za
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Kirsten keeping it classy as always! Such an incredible sailor. soundcloud.com/goldenglobera… #ggr2022
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Kirsten roughly an hour away. Tapio unhelpfully drifting North at roughly 1kt. He'll have spent a little over 24 hours in his raft but his spirits are high. #GGR2022
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Tapio's PLB (that was in his life raft) has been manually activated. Last position report from the onboard tracker was at 4AM UTC but nothing since. Hopefully this means he's safely in his life raft. #GGR2022 @ggr2022 @SailingTapio facebook.com/goldengloberace…
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ETA Calculations Update: * Some updates to increase accuracy. * Now showing the ETA in your local timezone so that you know when to start watching YouTube without doing maths 🤓 🇿🇦 Go Kirsten! 🇫🇮 Go Tapio! 🇮🇪 Go Pat! @ggr2022 #GGR2022 See more at ggr.underground.co.za/#etas
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ETAs are very tricksy to calculate but enough people asked so here you go. #GGR2022 @ggr2022 This calculates an appropriate average VMG based on history & distance to waypoint, and then calculates the ETA. No weather data is considered! See more ggr.underground.co.za/#etas
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Correction to my earlier post: Kirsten's VMG is a full kt more than Tapio & conditions favour her route although dropping overnight. My guess would be her getting to the gate at around midday local with Tapio about 20 miles behind. #GGR2022 @ggr2022 ggr.underground.co.za
Kirsten is only 4 miles behind Tapio and is seeing better VMGs, so my money is only Kirsten into Cape Town second with Tapio a few hours later. #GGR2022 @ggr2022
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And now Kirsten is 10 miles ahead of Tapio with a 0.3kt VMG advantage. I can't wait to see her and Abhilash take turns breaking records as they fly to Tasmania.
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