Feb 132011
 

A few illustrations from a 2010 NASA presentation showing the two stage to orbit “RALV-B” (Reusable Airbreathing Launch Vehicle – iteration B). This is essentiallythe latest evolution of the X-30 NASP concept. While NASP died years ago, the basic concept – and even the basic design – survived on the back burner of aerospace studies. Note that the views show something that the NASP artwork almost never did… rocket engines on the airbreather.

The X-30 NASP would have required rocket engines to attain orbit. Even if the scramjet engine would have been able to propell the vehicle to Mach 25 – which seems spectacularly unlikely – it would have only been able to do so within the atmosphere. Thus a pure airbreather might pop out of the atmosphere,  but without rockets to circularize and expand the orbit, it would just drop right back down again.  But all the publicity artwork showed rocket-less spaceplanes. But if you know where to look, you can find drawings and diagrams of NASP competitors, and NASP derivatives, with rocket engines. By the end of the NASP program, designers seemed to have settled on a linear aerospike engine above the flat tail. Whether this had any influence on the X-33, I can’t say, but the aerospike engines did tend to resemble those of the X-33.

The RALV-B shown here uses a bank of conventional bell-nozzle rocket engines for final pull-up before second stage separation. Turbine based combined cycle engines are used for acceleration and climb . It is to be an unmanned vehicle capable of launching 20,000 pounds of payload to a 28.5 degree, 100 nautical mile circular orbit. Payload bay is 12 feet in diameter, 30 feet long. Dimensions for the vehicles are not given, but can be estimated from the payload bay.

 Posted by at 11:11 am
Feb 122011
 

Secret filming at Muslim schools in Birmingham and Yorkshire shows pupils being beaten and ‘taught Hindus drink cow p***’

Turns out Britain has something like 2,000 Islamic schools. And rather astonishingly, some British journalists decided to actually check them out. It seems that at at least one of these “schools,” the students are being indoctrinated with Islamism and violence. Say it ain’t so!

It’s an interesting read. I expect that the journalists will very shortly be brought up on charges of  “inciting racial hatred” or some stupid thing in one of those horrid Eurabian “human rights” courts.

 Posted by at 8:47 pm
Feb 122011
 

For a very brief time… 50% off of all downloadables. The usual verbage:

All downloadable drawings and documents and APRs, as well as Reichdream items. Sale excludes matter-mail items. Minimum order: $30.

There has *got* to be a way to do this with Paypal in a way that doesn’t seem lame, but I don’t know what it is. So, here’s what I’ve come up with: order the “coupon” below (a nominal fifty cents), and at least $30 more items… and I will refund you 1/2 of the total. More steps than would seem necessary, but I think it should be workable. Sale will remain up for… a while.

Remember to order the “coupon” and the items all in one order. Otherwise… it won’t work. No “coupon,” no savings…

Sale has ended. Just cuz I’m not currently updating numerous times a day is no good reason not to look in on the Unwanted Blog numerous times a day.

 Posted by at 4:29 pm
Feb 122011
 

In 1966, Lockheed Missiles & Space Company reported to NASA on the thermal protection systems to be developed for a cryogenic Apollo Service Module propulsion system. This new SM would be a very different beast for the baseline SM… 192 inches in diameter, it had a single spherical liquid hydrogen tank containing 5500 pounds of LH2, and four smaller spherical tanks containing 27,500 pounds of liquid oxygen. These fed into a single RL-10 rocket engine.

The insulation system was to be sufficient to keep boiloff of the hydrogen to less than 5% over a standard 8-day lunar mission. Performance would be improved over the standard SM; instead of the 26,000 pound lunar excursion module that the standard Apollo CSM would be able to put into lunar orbit, this cryogenic propulsion module would be able to handle 41,000 pounds of lunar orbit payload.

 Posted by at 4:20 pm
Feb 102011
 

So, MSNBC canned Keith Olbermann, but he managed to find a new job. Turns out Al Gore thinks Keith is just neato-keen, and offered him a job at “Current TV,” his very own network. So Olbermann will be working for Al Gore. One wonders if he’ll get paid in carbon credits.

But there’s an interesting tidbit of data in this article: during prime time, Current TV is on in 18,000 households in the US.  Not eighteen MILLION… eighteen THOUSAND.

I vaguely recall seeing Current on my DirecTV a year-ish ago, but I don’t recall having seen it recently. DirecTV shuffles channels around from time to time, and it may be that it got shuffled off my channel listing. The fact that I didn’t notice it going away says something. The fact that primetime viewership is measurable in *thousands* shouts something rather more.

 Posted by at 10:45 pm
Feb 102011
 

I’ve been selling Justo Miranda’s works as downloadable PDFs for a while now. He has recently agreed to have me start selling them in print format, as they were originally meant to be. So start saving your pennies…

The selling price will be higher than the PDF price, as might be expected, but in many cases less than the original paper sales price.

 Posted by at 4:48 pm
Feb 102011
 

Sick. Nothing too terribly horrible, but distressing and exhausting. Pretty much sapped of all forms of energy or initiative.

I’m hoping to maybe get back to normal-ish within a week.

 Posted by at 4:43 pm
Feb 082011
 

http://www.latimes.com/health/boostershots/la-heb-james-randi-homeopathy-20110207,0,1260180.story

James Randi has offered one million dollars to any manufactuer of homeopathic meds who can prove that their quackery actually works. As with his previous offer of a million bucks to anyone who could prove psychic phenomena (or Andrew Breitbart’s offer of ten grand for proof of the “N-word” being hurled at black Congressmen last year), I’m pretty sure his money is safe.

 Posted by at 6:53 pm