Jet-rocket engines need a lot of fuel per unit of weight of the rocket. You can use our rocket equation calculator to see how much fuel you need to obtain a certain velocity (e.g., with an effective exhaust velocity of 4500 m/s). Hopefully, future spaceships will be able to produce...
The fact that this system uses a gridded ion thruster, rather than a Hall effect thruster (HET), is interesting, since HETs are the area that Soviet, then Russian, engineers and scientists have excelled at. The higher isp makes sense for a long-term tug, but with a system that seems ...
In the same work area as the Shooting Star modules, Sierra Space engineers are also working on the Large Integrated Flexible Environment (LIFE) habitat. A key aspect of that project is evaluating and testing the use of softgoods to fashion expandable structures using Vectran, a weave of high-...
Those symbols having levels of which it is most certain whether they represent a logical zero or a logical one, are used in addition to the training sequence to set the tap weights.doi:CA2265102 A1Timothy James SpeightCA
Selene was the very first of her line, created in the brains of a few engineers who had sat down at a table and asked themselves: “How do we build a vehicle that will skim over a sea of dust?” Some of them, harking back to Ole Man River, had wanted to make her a stern-...
they would not need heat shield tiles, the aerodynamic steerage flaps, nor the three landing rockets. Also, there would not be a need for reserve fuel for landing. These weight reductions would allow the engineers to expand Starship and/or make more built-in structure and/or carry more start...
Ideally suited to students and engineers looking for an easy-to-use analysis tool, Space Frame S is a good progression for those familiar with our 2D apps and student app Intuition. With CASA SF-S an engineer can create 3D structural models of space-frames and obtain both the numerical resu...
Document generated by Confluence on Sep 20, 2007 16:02 Page 21 • One of the most frequently used patterns by many software engineers! See also: Refactoring with Groovy Document generated by Confluence on Sep 20, 2007 16:02 Page 22 Abstract Factory Pattern This page last changed on May ...
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