asteroza + sail   61

Energy Observer is testing a new wind turbine thruster: the Oceanwings®
Oceanwings are wing sails, but soft cloth based so they can be "furled/reefed", the spar that remains is still pretty a large in area...
yacht  wing  sail  propulsion  sailing  cloth  soft 
5 days ago by asteroza
.: Energy Observer :.
Interesting ship design, but the hydrogen production is rather energy intensive, limiting usability. Of note, they removed the VAWT's (and probably the traction kite sail) and have wingsails now, along with boosted solar PV cells.
hydrogen  yacht  boat  ship  marine  engineering  wing  sail  catamaran  sailing 
5 days ago by asteroza
RIT researcher develops new solar sailing technology for NASA - RIT News
Uh, based on the vectors, this is only going to work really well for an SSO orbit riding the terminator line since you need the solar angle to be normal to the plane of the sail and keep the sail edge-on to the orbital vector...
metamaterial  diffractive  metafilm  solar  sail  cubesate  satellite  space  propulsion  diffraction  optics  materials  science  research  technology 
july 2018 by asteroza
Self-Deployed Space or Planetary Habitats and Extremely Large Structures
NIAC phase 1 results. NRO research related as well for deployable space telescopes. Rigidized UV cured polymer thin film bubbles for space applications. Possible flat primary mirrors/solar sails, but if they are making spheres, making curved mirror segments should be doable. If you use 6 stabilizing hoops as cut lines, can get 6 sphere segments without much waste (waste could be repurposed as additional mirror segments)
NIAC  NASA  deployable  space  telescope  primary  mirror  solar  sail  polymer  UV  cured  rigidizable  thin  film  structure  bubble 
april 2018 by asteroza
.: Energy Observer :.
Traction kite propulsion included, wonder if it's SkySails...
france  solar  hydrogen  ship  boat  yacht  vehicle  transportation  electric  traction  kite  sail  marine  engineering  propulsion  Delicious 
february 2017 by asteroza
Saildrone
Neat wingsail trimaran drone for oceanography.
USV  drone  wingsail  sail  wing  trimaran  sailboat  vehicle  sensor  platform  oceanography  Delicious 
september 2016 by asteroza
Project Saildrone
Interesting unmanned sailing trimaran drone.
marine  sensor  platform  wing  drone  autonomous  USV  ocean  sail  engineering  fixed  wingsail  Delicious 
september 2013 by asteroza
test_plansjer_Vindskip - plansjer_vindskip.pdf
Oddball ship design where hull superstructure is a symmetric foil, trying to gain some aerodynamic body lift from wind. So a kind of hard/rigid sail sailboat variant. Supposedly have a WIPO patent application http://www.sumobrain.com/patents/wipo/Ships-hull-ship-including-such/WO2012087146.html , but this thing screams concept designer, and not marine engineer.
marine  concept  ship  rigid  windship  research  engineering  superstructure  Vindskip  sail  hard  design  airfoil  Delicious 
september 2013 by asteroza
SSI2010SSPpaper.pdf (application/pdf Object)
Interesting concept for an SPS using a thin film solar cell array operating as a spin stabilized panel, similar to a solar sail. Uses IR power transmission, probably laser based. Unfortunately, the setup for the laser is not ideal, as it would have to have the laser at the rotating center, requiring either a big central power yoke/gymbal with slip ring, or fixed lasers near the center with active beam steering. Actually fixed lasers with that recently developed polarized grating liquid crystal laser beam steering mechanism might work well here since it's solid state.
SPS  SSP  SBSP  space  solar  power  satellite  design  concept  heliogyro  spin  stabilized  electric  sail  laser  IR  beaming  Delicious 
november 2011 by asteroza
Eco Marine Power - solar, electric, wind, hybrid marine power and propulsion
Some weird array type wind sail for ships, covered with solar cells. But not wing sails it seems. More like a retro solid sail squarerigger schooner.
solid  rigid  sail  solar  panel  array  wind  power  generator  green  energy  marine  auxiliary  propulsion  hardware  electronics  devices  ship  vessel  technologies  technology  Delicious 
september 2011 by asteroza
UOV Vehicles
Interesting mix of technology here. A solarsailer wind wing sail with embedded solar cells for power, and a underside electric propeller that can operate in reverse generator mode when the wind is strong enough, to top off the batteries for the drone and the sensor platform/comm rig. As a USV, it probably is a equal to those wave rectifier sensor platform USV's, but with substantially better transit distance and directional performance. It would effectively be operating with no range limitation, provided you didn't blow too much battery before a normal recharge cycle.
UOV  USV  unmanned  surface  vehicle  small  form  factor  solar  sail  solarsailer  wind  autonomous  operation  drone  sensor  platform  cell  power  generator  green  propulsion  wing  wingsail  military  navy  ocean  marine  monitoring  observation  Delicious 
september 2011 by asteroza
Data clippers to set sail to enhance future planetary missions
Reiterating the old adage "Few things can beat the bandwidth of a station wagon full of tapes...", this proposal for orbiting cycler spacecraft using solar sails for bulk data ferrying is interesting, though solar sailers have even greater weight limitations compared to conventional spacecraft, and suffer from even larger handicaps in far deep space, short of using a laser from earth to provide secondary beamed propulsion.
solar  data  clipper  cycler  spacecraft  design  concept  backhaul  sail  sailer  ponyexpress  Delicious 
september 2010 by asteroza
University of Surrey as Developed a Nanosatellite Cubesail Solar Sail to Clear Orbital Junk
I wonder how the suitability of the CubeSail compares to a more traditional braking electrodynamic tether? I suppose it depends on whether the intended market is controlled destruction of LEO satellites, or quick deorbit of booster stages, and how close the perigee is to the atmosphere...
CubeSail  orbital  debris  mitigation  air  drag  anchor  parachute  deorbit  system  space  propulsion  solar  sail  Delicious 
april 2010 by asteroza

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