projects – Page 80 – The Unwanted Blog

USLP #3, Large Format USBP 10-12, 13-15 Now Available

aircraft, drawings, history, new products, nukes, projects, rockets, spacecraft, US Bomber Projects, US Launch Vehicle Projects 1 Response »

Dec 072015

USLP 03

Issue 03 of US Launch Vehicle Projects is now available (see HERE for the entire series). Issue #03 includes:

Juno V/Titan/Nomad: A 1958 concept for a space launcher using an ICBM for upper stages
Convair ATE Nova: A 1963 idea for winged airbreathing boosters
B-70/Gemini: Using a bomber as a booster
Phase II VTOHL Orbit-On-Demand: a 1985 concept for a relatively small two stage to orbit spaceplane
NASA Lewis Saturn Ib/Centaur/Kick Stage: a high energy upper stage
NASA MSC 042B/Titan IIIL6: a straight-winged orbiter atop a large Titan derivative
Heavy Lift Titan: A large diameter Titan core with three Shuttle boosters
Escher “Unshackled”: An unconventional idea for a lunar rocket

USLP #03 can be downloaded as a PDF file for only $4:

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Large format USBP drawings, Issues 10-12

The CAD drawings created for USBP reformatted and rescaled for 11X17 collected in a separate volume. Drawings have in some cases been corrected, improved and added to.

USBP 11X17 10-12 collects the diagrams created for issues 10, 11 and 12, including:

Boeing Model 464-34-3, Republic mach 7, Lockheed CL-1301-1, Convair WS-125A, Boeing 484-415, Martin Model 223-10, Boeing Model 814-1010 Dyna Soar, Martin Model 192-5, Boeing Model 464-40, Boeing Model 701-218, Northrop Nuclear flying wing, North American D118, Martin Model 223-11, North American Model 705-00-04, Bell/Martin 464L, Boeing B-1, Boeing Big Bird BB 6800, Boeing Model464-41, Douglas MX-2091-E, Boeing Model 701-238, Martin Model 223-12, Northrop Nuclear Flying Wing, Rockwell MRCC, Lockheed CL-820-8

USBP11x17-10-12 can be downloaded as a PDF file for only $10:
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Large format USBP drawings, Issues 13-15

The CAD drawings created for USBP reformatted and rescaled for 11X17 collected in a separate volume. Drawings have in some cases been corrected, improved and added to.

USBP 11X17 13-15 collects the diagrams created for issues 10, 11 and 12, including:

Ryan Model 162, Boeing Orbital bomb, Northrop Atomic Wing, Consolidated Vultee High Speed Flying Boat, Martin Model 189, Boeing Model 464-046, Curtis F-87C, Boeing Model 701-247, Lockheed WS 464L Dyna Soar, McDonnell WS 464L Dyna Soar, North American WS 464L Dyna Soar, Republic WS 464L Dyna Soar, Convair WS 464L Dyna Soar I, Convair WS 464L Dyna Soar II, Douglas WS 464L Dyna Soar, Northrop N206 WS 464L Dyna Soar, Boeing Model 814-1010 Dyna Soar II, Bell/Martin WS 464L Dyna Soar, Boeing Model 2050E Dyan Soar, Boeing Dyna Soar/ Titan IIIc, Bell D2001 TS-149, Lockheed Harvey; Convair Model 35, Rockwell D661-27, Boeing Model 464-49, Boeing Model 988-123, Boeing Manned Orbital Bomber, Boeing Model 701-251

USBP11x17-13-15 can be downloaded as a PDF file for only $10:
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Three-man A-4 (V-2)

aircraft, drawings, history, Patreon, projects, rockets 2 Responses »

Dec 072015

Here’s something I have some vague recollection of posting before, but couldn’t find after a cursory search: a sketch of the seating arrangement of a 3-man A-4 rocket (might be the A-8 derivative). This is a scan of a photocopy of a photocopy; the original photocopy was found in the files of a researcher at the NASM twenty or so years ago. It’s thought that the sketch was originally made by Werner von Braun during WWII.

Little data is provided; range is given as 500 km. *Presumably* this would have been a winged, landing-gear-equipped derivative of the A-4; replacing the warhead of the V-2 with just three guys seems like a waste of three guys, as well as a not terribly effective weapons system.

The full-rez scan (such as it is) has been made available to APR Patrons in the 2015-12 APR Extras Dropbox folder. If you’d like to help out and gain access to this and many other pieces of aerospace history, please check out the APR Patreon.

Sure, that makes sense

blather, drawings, history, Hmm..., projects, rockets, spacecraft, US Launch Vehicle Projects 19 Responses »

Dec 042015

The Space Launch System continues to meander ahead. This surprises me; I thought sure it would’ve been cancelled by now. But forward it goes. Proof of that progress comes in the form of NASA recently signed a $1.16 billion dollar contract with Aerojet Rocketdyne (seriously, how depressing is it that this is now one company, rather than two vibrant competitors?) to restart production of the RS-25 rocket engine. Four of these engines will power the core of the SLS launcher.

Diagram showing the Saturn I, Space Shuttle, SLS and Saturn V to scale

The RS-25 was also – and better – known as the Space Shuttle Main Engine. It’s an incredibly complex, fabulously expensive engine, because it tries to squeeze every last erg of performance from the hydrogen and oxygen propellants, and because it’s a man-rated engine that *cannot* be allowed to self-disassemble, and because it’s reusable.

Except… the new RS-25s will be tossed away with each SLS flight. Every time the rocket goes up, four RS-25s will be dumped into the drink.

Seems just a little bit of a waste.

As part of the new contract, the RS-25’s will be modernized; since there’ll be no reusing them, manufacturing processes are to be streamlined and parts count will be reduced. That’s good, but unless the parts count drops a *lot,* the price per engine will remain painfully high.

Interestingly, this is kinda the same/kinda the reverse of the history of the H-1 engine used on the Saturn I. The Thor and Jupiter MRBMs used the LOX/RP-1 S-3 engine; it was the right size for the new Saturn I, but was terribly expensive. So Rocketdyne engineers took the S-3 apart, figured out what they needed and what could be simplified, reduced parts count by (IIRC) more than 90%, and produced the H-1 engine. Lighter, cheaper, more powerful and, as it turned out, reusable without even really trying.

Throwing away the RS-25s after each flight is not necessarily necessary. Many, many Shuttle-derived launch vehicles have been designed over the decades that used SSMEs but didn’t throw them away. Anywhere from one to four (and probably more) SSMEs would be mounted at the tail of the launcher, built into a “capsule” that would separate from the booster after burnout and return the engines to the Earth (generally via ocean splashdown) where they would be recovered and reused. The design below (from US Launch Vehicle Projects #2) is a Martin Marietta concept from 1984 that put three SSMEs into a lifting body module that hung off the side of the booster. This position was chosen so that the booster could be launched from an unmodified Shuttle pad. The SLS mounted the engines directly below the core, necessitating a whole new launch pad. But since the Shuttle is no more, that’s not a big deal.

Proposed Cyanotypes

aircraft, art, cyanotype blueprints, drawings, history, Hmm..., new products, Nuclear Pulse Propulsion, nukes, projects, rockets, spacecraft 7 Responses »

Dec 032015

I’m planning on producing some new cyanotype blueprints at some point. Some will be copies of vintage blueprints, but some will be all-new CAD diagrams. Below are some CAD diagrams at various stages of completion. All are based on a 10-inch by 40-inch format; this will make them appropriate for folding into a book, or hanging on a wall. They would go for $25 per sheet as cyanotypes; I might also do them in frosted (white) mylar for probably a bit cheaper and maybe on regular paper for a lot cheaper. However, before plowing ahead I’d be interested in feedback… which of these are of interest? Which might you actually plunk down funds for? Additionally: I’ve produced a *lot* of CAD diagrams for APR and USXP. Is there anything I’ve done you’d like to see expanded out like this?

1: USAF 10-meter Orion, two sheets, 1/96 scale

2: Have Sting orbital railgun, one sheet, 1/200 scale

3: X-15A-3, 1 sheet, 1/35 scale

4: Rockwell MRCC, 1 sheet, 1/60 scale

5: Rockwell D645-3, one sheet, 1/144 scale

6: X-20/Titan IIIc, two sheets, 1/72 scale

7: XB-70, one sheet, 1/144 scale

8: ITHACUS troop transport, two sheets, 1/200 scale

DARPA cancels ALASA

aircraft, news, projects, rockets, science, spacecraft 8 Responses »

Dec 012015

DARPA Scraps Plan To Launch Small Sats from F-15 Fighter Jet

ALASA (Airborne Launch Assist Space Access) was a program to develop a launch vehicle that could be carried aloft by an F-15, with an orbital payload of around 45 kilograms. The design detail that was supposed to make ALASA work was what killed it: the propellant.

ALASA was to use liquid rocket engines. Nothing new there. The propellant combination was acetylene and nitrous oxide; that’s kinda new. But the Really New part of the design was that the two propellants were to be pre-mixed, meaning that the vehicle required only a single tank and simpler plumbing. Pre-mixing fuel and oxidizer is always a tricky proposition, but it has been successfully demonstrated from time to time. But here, in several tests the propellant simply exploded. This should not be overly surprising… acetylene is one of those unstable chemicals that will on occasion blow itself to bits just because it’s cranky. Mixing it with an oxidizer is just asking for trouble.

DARPA seems to have bailed on the launcher program, but is continuing to try to develop the propellant (called NA-7). Tricky though it may be, if it can be reliably stabilized there are undoubtedly vehicle designs that could effectively utilize it.

The ALASA vehicle made another unusual design choice: the rocket engines were near the front, not at the back. The reason for this: the trailing propellant tank could be dropped as a stage, but leave the engines in place. This would theoretically make the vehicle lighter, at the risk of having hot rocket exhaust scraping down the sides of the tank.

APR Patreon November Rewards

aircraft, APR, drawings, history, new products, nukes, Patreon, projects, rockets, spacecraft No Responses »

Nov 272015

Just under the wire, rewards for November have been made available to APR patrons. Three documents and one large-format diagram, and one all-new CAD diagram, have been posted:

NASA diagram (on two sheets) of a NERVA nuclear rocket engine display model, presenting the configuration with detail and clarity
An article on a orbiting nuclear power station
A full-color brochure (via photographs) on the Convair Model 36, their entry for what became the B-36
A North American Aviation presentation on delta wings for the X-15, presenting a few different configurations
An all-new layout CAD diagram of the Bernal Sphere space colony concept

If you’d like to help out and gain access to these and past and future rewards, please check out the APR Patreon.

Buy stuff at Amazon

aircraft, blather, news, projects, sales & specials No Responses »

Nov 262015

Amazon currently is running a “30% off any one book up to $10” special, if you type in “HOLIDAY30” in the “Gift cards & promotional codes” section during checkout. The small print is HERE. Why do I bring it up? Because Federally Mandated Commercial Over-Shopping Holiday is only a month away… and if you do your shopping for knickknacks and whatnot starting with the Amazon search box you should see at the upper right of this very page, a small, tiny percentage will be kicked back my way. So wander over yonder to buy a couple XPlayBoxStations for the horrible ingrate brat children your family is plague with, and when you’re done pick up a book for yourself. Below are a few options that look like they might be good (don’t have ’em myself yet).

American Secret Projects: Fighters, Bombers, and Attack Aircraft, 1937-1945

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N-1: For the Moon and Mars A Guide to the Soviet Superbooster (English and Russian Edition)

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The 2001 File: Harry Lange and the Design of the Landmark Science Fiction Film

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An Untaken Road: Strategy, Technology, and the Hidden History of America’s Mobile ICBMs (Transforming War)

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The most Sci-Fi thing you’ll see all day: option A

awesomeness, history, news, projects, rockets, spacecraft, youtube 12 Responses »

Nov 242015

Blue Origin seems to have flown their New Shepard craft yesterday… booster rocket and capsule. The video shows the launch, a CGI version of the separation, video of the capsule landing and video of the booster landing. The booster landing video, especially the view at 2:39, is just about the sportiest ride imaginable that doesn’t end with an Incident Review Board.

In some ways this is similar to the SpaceX Falcon 9 + Dragon capsule. Important difference is the much lower performance of Blue origins system… straight up into space, but no attempt at orbital flight (and nowhere near capable of it). But with a second stage… who knows.

Dyna Soar/ Titan III Art

aircraft, art, history, projects, rockets, spacecraft No Responses »

Nov 242015

In 1963 the Curtiss Wright Corporation ran an ad in Missiles & Rockets magazine illustrating their participation in the Titan III/Dyna Soar program. The main illustration in the ad depicts the launch vehicle in flight; it is not, sadly, a wholly accurate depiction. The N2O4 thrust vector fluid tanks for the SRBs aren’t included, nor are the separation motors; the two engine bells on the Titan core are shown clocked out of alignment. Still, a reasonably nice illustration.

MOL Model

history, models, projects, rockets, spacecraft 1 Response »

Nov 192015

A poor-quality photo of a display model of the Manned Orbiting Laboratory, made partially of plexiglas to permit a view of the interior. Appears to have been made by or for Air Force Space Systems Division. Image published in the February 17, 1964, issue of Missiles & Rockets magazine. This would have been an early design of the MOL. It’s difficult to determine size/scale of the model, but it looks reasonably large… probably at least 1/24 scale. Note that the transstage is shown attached, but it represented at low fidelity.

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