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PRACTICAL METHODOLOGIES FOR LOW DELTA-V PENALTY, ON-TIME DEPARTURES TO ARBITRARY INTERPLANETARY DESTINATIONS FROM A MEDIUM-INCLINATION LOW-EARTH ORBIT DEPOT
So LEO propellant depots always have an alignment problem if using a single burn from the depot, making them unattractive. But if you can handle an extra few weeks (and a long duration upper stage), 3 burn departure basically fixes all the sins of a prop depot.
NASA  space  propulsion  propellant  depot  departure  orbit  design  3  burn  interplanetary  escape  LEO  navigation  astrogation  trajectory 
13 days ago by asteroza
New power generation and propulsion system for satellites | UC3M
Some sort of low work function aluminum tape, that emits electrons more easily in sunlight, appears to be the working principle behind this electrodynamic tether
space  propulsion  materials  science  research  technology  low  work  function  aluminum  tape  electrodynamic  tether  propellantless 
18 days ago by asteroza
Air-Breathing Electric Propulsion
So air PPT might be doable for a PROFAC thruster, but an inductively coupled plasma (AKA a helicon, the core of a VASIMR) is looking pretty good...
space  propulsion  PROFAC  atmosphere  air  electric  thruster  PPT  inductively  coupled  plasma  helicon  VASIMR 
6 weeks ago by asteroza
Aviation Renaissance: NASA Advances Concepts for Next-gen Aircraft | NASA
An aviation renaissance, one focused on energy efficiency and economic impact, is on the horizon, and it’s changing how NASA engineers are looking at aircraft power and design.
STARC-ABL  NASA  aviation  aerospace  BLI  boundary  layer  ingestion  turboelectric  electric  airplane  aircraft  propulsion 
november 2017 by asteroza
Tough SF: Liquid Rhenium Solar Thermal Rocket
Interesting solar thermal concept using a liquid primary heat receiver. Needs some work on the solar window end of the barrel design.
space  solar  thermal  propulsion  liquid  metal  heat  receiver 
october 2017 by asteroza
Neander Shark
Makers of an interesting diesel engine that features two conrods per piston for extreme smoothness. Now teamed up with Yanmar for a diesel outboard.
Yanmar  diesel  outboard  engine  marine  propulsion 
october 2017 by asteroza
EViation
Working an electric somewhat distributed propulsion general aviation aircraft. Sorta interesting design, sorta reminiscent of WingCo's BWB Atlantica
electric  distributed  propulsion  aircraft  airplane  general  aviation  research  technology  israel 
september 2017 by asteroza
Rocket motor concept could boost CubeSat missions
Somehow gasifying a solid fuel, which then is piped to and reacts with a solid oxidizer section
cubesat  space  propulsion  segregated  solid  fuel  oxidizer  thruster  rocket 
july 2017 by asteroza
Thrustme | Lets the small satellite space revolution begin
Uses a gridded ion thruster with solid iodine fuel, but fuel vacuum sublimation may put upper limits on lifetime? Though the size does look interesting for cubesats
grid  ion  thruster  cubesat  small  form  factor  space  propulsion  europe  france  EU  solid  iodine  fuel 
june 2017 by asteroza
First Breakthrough for Future Air-Breathing Magneto-Plasma Propulsion Systems - ...
pulse plasma engine working at 1 atmosphere, sorta PDE, looks interesting but needs high power (remote beaming?), so looking like something for airships for now.
dense  plasma  focus  ignition  discharge  pulse  detonation  engine  propulsion  air  breathing  aviation  aerospace  research  technology  PDE  Delicious 
may 2017 by asteroza
Wright Electric
Distributed electric propulsion research now backed by an airline
electric  airplane  aircraft  propulsion  general  aviation  research  technology  distributed 
march 2017 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
Variable Element Launcher
Apparently Aerojet pulled some work from their dual mode ramjet work to demo a working TAN rocket nozzle, with LOx/LH2 with LOx/RP-1 TAN injection, for a working tripropellant setup.
aerojet  dual  fuel  TAN  tripropellant  LOx  LH2  RP-1  space  rocket  engine  propulsion  test  Delicious 
february 2017 by asteroza
Dearman
Interesting engine that works on expansion of liquid nitrogen as the working fluid in a piston engine (similar to compressed air engines), but the real savings is for refrigerated goods delivery vehicles, that can use the cold exhaust for cooling cargo. Wonder how well it pairs with hybrid electric drivetrains, or functioning as a range extender?
liquid  cryogenic  LN2  engine  powerplant  motor  propulsion  green  nitrogen  Delicious 
january 2017 by asteroza
CAT ENGINE | PHASE FOUR
CAT thruster manufacturing licensed to these guys
cubesat  space  propulsion  thruster  plasma  helicon  engine  electrodeless  Delicious 
august 2016 by asteroza
Pure Watercraft
Trying to get into the electric outboard business, and I don't mean trolling motors...
marine  motor  propulsion  electric  outboard  watercrafft  boat  yacht  Delicious 
may 2016 by asteroza
Lilium Aviation
Shades of LightningStrike, neat trick of telescoping the forward canard fan array for VTOL
distributed  electric  fan  propulsion  VTOL  general  aviation  airplane  aircraft  research  technology  Delicious 
may 2016 by asteroza
Airbus Group and Siemens Sign Long-Term Cooperation Agreement in the Field of Hybrid Electric Propulsion Systems - Siemens Global Website
Siemens has been doing aircraft propulsion electric motors recently, guess they felt it was better to cooperate with the Airbus E-Fan group rather than compete. Wonder how the turboelectric work will shake out though?
airbus  Siemens  hybrid  electric  aviation  propulsion  research  technology  motor  aircraft  europe  EU  turboelectric  Delicious 
april 2016 by asteroza
Star Technology and Research
Developing a electrodynamic tether driven space junk retreiver
electrodynamic  tether  space  propulsion  research  technology  garbage  junk  trash  removal  Delicious 
april 2016 by asteroza
Ursa Major Technologies
Former Blue Origin propulsion guys doing 3D printed engines
space  propulsion  research  startup  rocket  engine  Delicious 
march 2016 by asteroza
DARPA Announces VTOL X-Plane Phase 2 Design
LightningStrike, a spiritual follow-on to Excalibur, though the embedded fan wing needs to be compared to LEAPtech/SCEPTOR/S2 in terms of efficiency as the fanwing might be a little overbuilt.
DARPA  hybrid  gas  turbine  electric  motor  turboelectric  distributed  propulsion  embedded  fan  wing  tiltwing  VTOL  aircraft  research  technology  aviation  airplane  UAV  Delicious 
march 2016 by asteroza
BSRD - RTR
Uh, using the chamber itself as your power pack for the compressor (thus coaxial shaft), isn't really all that different from a conventional turbine or a RamGen turboexpander in principle.
ATR  air  turbo  rocket  turborocket  aviation  aerospace  space  propulsion  research  technology  Delicious 
february 2016 by asteroza
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