Earthpulse

Source: http://forum.nasaspaceflight.com/index.php?topic=37642.2540 SECOND GENERATION EMDRIVE PROPULSION APPLIED TO SSTO LAUNCHER AND INTERSTELLAR PROBE Roger Shawyer C.Eng.MIET.FRAeS SPR Ltd, United Kingdom [email protected] ABSTRACT In an IAC13 paper the dynamic operation of a second generation superconducting EmDrive thruster was described. A mathematical model was developed, and in this paper, that model is used to extend the performance envelope of the technology. Three engine designs are evaluated. One is used as a lift engine for a launch vehicle, another as an orbital engine for the launcher, and a third as the main engine for an interstellar probe. The engines are based on YBCO superconducting cavities, and performance is predicted on the basis of the test data obtained in earlier experimental programmes. The Q values range from 8 x 10^7 to 2 x 10^8 and provide high specific thrusts over a range of accelerations from 0.4 m/s^2 to 6 m/s^2. The launch vehicle is an “all-electric†single stage to orbit (SSTO) spaceplane, using a 900 MHz, eight cavity, fully gimballed lift engine. A 1.5 GHz fixed orbital engine provides the horizontal velocity component. Both engines use total loss liquid hydrogen cooling. Electrical power is provided by fuel cells, fed with gaseous hydrogen from the cooling system and liquid oxygen. A 2 Tonne payload, externally mounted, can be flown to Low Earth Orbit in a time of 27 minutes. The total launch mass is 10 Tonnes, with an airframe styled on the X37B, which allows aerobraking and a glide approach and landing. The full potential of EmDrive propulsion for deep space missions is illustrated by the performance of the interstellar probe. A multi-cavity, fixed 500 MHz engine is cooled by a closed cycle liquid nitrogen system. The refrigeration is carried out in a two stage reverse Brayton Cycle. Electrical power is provided by a 200 kWe nuclear generator. The 9 Tonne spacecraft, which includes a 1 Tonne science payload, will achieve a terminal velocity of 0.67c and cover a distance of 4 light years, over the 10 year propulsion period. The work reported in this paper has resulted in design studies for two Demonstrator spacecraft. The launcher will demonstrate the long-sought-for, low cost access to space, and also meet the mission requirements of the proposed DARPA XS-1 Spaceplane. The probe will enable the dream of an interstellar mission to be achieved within the next 20 years.

For some reason i suddenly get the following error: ========== OUTPUTING STACK TRACE ================== (0x0000000103B10000) ((module-name not available)): (filename not available): (function-name not available) + 0x0 (0x00000000282780C1) (Mono JIT code): (filename not available): MuMech.MechJebCore:OnDestroy () + 0x251 (0000000028277E70 00000000282784E2) [0000000003A64D48 - Unity Root Domain] + 0x0 (0x00000000043972DB) (Mono JIT code): (filename not available): (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr) + 0x6b (0000000004397270 000000000439734A) [0000000003A64D48 - Unity Root Domain] + 0x0 (0x00007FFCF34836CA) (mono): (filename not available): mono_set_defaults + 0x2b8e (0x0000000000445BB8) ((module-name not available)): (filename not available): (function-name not available) + 0x0 (0x00000000FFFFFFFF) ((module-name not available)): (filename not available): (function-name not available) + 0x0 (0x0000000003A64D48) ((module-name not available)): (filename not available): (function-name not available) + 0x0 ========== END OF STACKTRACE =========== Anyone got any idea why this happens? Edit: For some reason all my crafts have a TWR of 0 when on the launchpad. In the VAB mechjeb shows the correct values.

Damn the .24 extension had me Hyped up!

Yeah its downloading the files atm. (Patcher from the game directory, not steam)

**** -zrav --progress rsync://****/ "/cygdrive/c/Games/ksp.24" above is from the patcher (edited out some secure info)

I think i am downloading it right now through the patcher in the game directory. (not steam)

Its because of the HyperTrain exceeding infinite accelaration/s. The destination must have a tremendous gravitational pull on the HYPETRAIN!

Man you would be a great CIA " interrogation" (torture) officer.

Scratchpad is up!

So, is steam going to get .24 faster then the patcher or the ksp store? If so i really need to get the Hypertrain do a course correction so i can get a steam key with HyperSPEED.

We just broke the great 502 Gateway barrier! Continue with the HyperAccelation manouvre!

My seatbelt doesn't work!

Thats because this one got HYPEBoosters!!!

Fasten your seatbelts gentleman because the HYPERtrain is HYPING UP!

Great idea about the pizza. The ingredients should be sugar,pepper,lots of cafeine and ofcourse a large dosis of extra HYPE!

Sleep? Who needs sleep when we're running high on HYPEEEEE! Give the devs more hype they need it hard!

With the speed this HYPEtrain travels its impossible to look outside the window. The past, present and future will happen all at once.

Wow i was almost late for departure... *Hopping on the hypetrain now, to infinity and beyond!!

Its a conspiracy to keep us normal people at bay. Why must up the speed of the hyPEtrain!

KasperVld why is this rule in place? I ask because using the html img element linking a image from another site doesn't use up any resources on this forum or server end.

As i am a web application developer myself i am really courious about the average requests/hour this server recieves and how many bandwith it takes up. I would really be interested to read a blog or forumpost with technical information about what it takes to keep everything up and stable during these forum abusing times.

Don't smoke before the fat lady sings.

Lol! You sir just reviewed a review!

Indeed, with the info we "normal" people have its 50%.

The chance of .24 coming out today is 50%