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#1
September 8th 18, 09:13 PM
posted to rec.aviation.soaring
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Vario Comparison
Mike Borgelt wrote on 9/5/2018 10:11 PM:
I had to derive this and I later found the derivation in a book called "Airplane Response to Atmospheric Turbulence" by John C. Houbolt. Yep, that guy - the one who pushed the Lunar Orbit Rendevous for Apollo. Thank you for that reference. I had never heard of the struggle between three methods of making it to the moon - and back. Fascinating! -- Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me) - "A Guide to Self-Launching Sailplane Operation" https://sites.google.com/site/motorg...ad-the-guide-1 - "Transponders in Sailplanes - Dec 2014a" also ADS-B, PCAS, Flarm http://soaringsafety.org/prevention/...anes-2014A.pdf 
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#2
September 8th 18, 10:35 PM
posted to rec.aviation.soaring
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Vario Comparison
On Saturday, September 8, 2018 at 1:13:39 PM UTC-7, Eric Greenwell wrote:
Mike Borgelt wrote on 9/5/2018 10:11 PM: I had to derive this and I later found the derivation in a book called "Airplane Response to Atmospheric Turbulence" by John C. Houbolt. Yep, that guy - the one who pushed the Lunar Orbit Rendevous for Apollo. Thank you for that reference. I had never heard of the struggle between three methods of making it to the moon - and back. Fascinating! -- Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me) - "A Guide to Self-Launching Sailplane Operation" https://sites.google.com/site/motorg...ad-the-guide-1 - "Transponders in Sailplanes - Dec 2014a" also ADS-B, PCAS, Flarm http://soaringsafety.org/prevention/...anes-2014A.pdf Watch "From the Earth to the Moon".
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