File:RocketMavericks GPS Overlay (4725455646).jpg
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| Description |
Tom and the gang tested the <a href="https://www.flickr.com/search/?q=P-Ref&w=44124348109@N01&s=rec">www.flickr.com/search/?q=P-Ref&w=44124348109@N01&...</a> airframe on a <a href="https://www.flickr.com/photos/jurvetson/4712341978/#comment72157624303433462">home-brew</a> O5800 motor this weekend. Here you see the GPS overlay on Google Earth for our launch site in the Black Rock Desert. There is an interesting GPS artifact during the supersonic climb. GPS works off of relative timing differences in signal transmission times to satellites with known positions. If you are going fast enough, the Doppler shift in those timing signals fools the system. Although it maintains GPS lock, the incoming timing signals are distorted by supersonic flight. This is why the z-dimension seems to be low for quite a while, but as soon as the rocket slows down, the inputs are correct, and the rocket position snaps into place, in this case 27,100 ft. as the rocket arcs over at apogee and deploys the first parachute. Then the rocket comes back by drogue parachute drifting off to the right. Closer to the ground, the main deploys, and the slope of return lengthens in the prevailing wind. I am looking forward to the big Sony and <a href="http://www.rocketmavericks.com/research/clotho-project" rel="noreferrer nofollow">Clotho Project</a> flights in July… it will ultimately fly on 16x as much motor — three <a href="https://www.flickr.com/photos/jurvetson/4267168827">Q’s</a> staging to a Q, with four <a href="https://www.flickr.com/photos/jurvetson/4712832723">HD cams</a> on board! |
| Date | |
| Source | RocketMavericks GPS Overlay |
| Author | Steve Jurvetson from Los Altos, USA |
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This image was originally posted to Flickr by jurvetson at https://flickr.com/photos/44124348109@N01/4725455646. It was reviewed on 13 May 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| current | 18:07, 13 May 2021 | | 1,149 × 858 (377 KB) | Sentinel user (talk | contribs) | Transferred from Flickr via #flickr2commons |
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