USS Bekuo is a real advanced plasma propelled spacecraft project, developed by Dr.Franklin Chang-Diaz and his team in Advanced Space Propulsion Laboratory at the Johnson Space Center. Now work continues in AdAstra Rocket company.
Changes in version 1.01:
    - Mars Lander added.
   - User customizable thrust levels.
   - Many other changes and fixes - See README for detailed info.
Features:
- Variable ISP (Changes from 30000 at 1% thrust to 5400 at 100% thrust).
- Exhaust texture changes for different thrust regimes.
- Auto Earth tracking communications antenna ( Algorhythm adopted from Yuri Kulchitsky)
- Lightable beacons.
- Comes with original music from NASA presentation (you must add it manually to your Orbiter playlist)
Sources:
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http://www.adastrarocket.com/
http://dma.ing.uniroma1.it/users/bruno/Petro.prn.pdf
http://spaceflight.nasa.gov/gallery/video/mars/mars/html/mars_animation.html