Saturn when it was Army

 launch vehicles, rockets, spacecraft  No Responses »
Feb 242023
 

A program progress film from 1959 describing the US Army’s “Saturn” rocket. This would soon be transferred to NASA, eventually becoming the Saturn I (then Ib). The basic layout of the first stage would remain, but the upper stages would change utterly; as shown here, they are derivatives of the Titan ICBM. Note that the first stage is shown being recovered. This feature lasted a surprising length of time, with components being built into the early NASA Saturns. The idea was that the stages would be parachute recovered with solid rocket motors firing at the last second to cushion splashdown. The motor firing would be set off by a trigger that would be released from the booster to dangle some distance below. As soon as the trigger hit the water, it would signal the motors to fire. The stage would splash down soft enough to be recovered, but it was assumed it’d be damaged beyond refurbishment. The idea was to examine the stage to see how it did, and introduce incremental improvements until *eventually* it was able to be recovered intact enough for cost effective refurbishment and reuse.

 

 Posted by at 6:30 pm

Selling cyanotype blueprints on ebay…

 Dyna Soar, hi-rez, hypersonic, jetliner, launch vehicles, nukes, rockets, space shuttle, spacecraft, spaceplane, stealth, transports  No Responses »
Feb 152023
 

I’m selling the blueprints I’ve recently made. I can sign ’em if the buyer wants, front or back…

Saturn Ib Inboard Profile Cyanotype Blueprint

NERVA nuclear rocket engine Cyanotype Blueprint

NERVA nuclear rocket engine artwork Cyanotype Blueprint

Boeing 2707-200 SST Cyanotype Blueprint

Trident II SLBM Cyanotype Blueprint

Northrop B-2A stealth bomber Cyanotype Blueprint

Saturn V Inboard Profile Cyanotype Blueprint

Skylab Cutaway Cyanotype Blueprint

A-4 (V-2) German Rocket Layout & Engine Cyanotype Blueprints

A-4 (V-2) German Rocket Isometric Cutaway Cyanotype Blueprint

A-4 (V-2) German Rocket Isometric Cutaway Cyanotype Blueprint: Smaller

Wasserfall German WWII Surface to air missile Cyanotype Bluepri

 

USS Monitor Ironclad Cyanotype Blueprint

550 Central Park West Cyanotype Blueprint

Lunar Excursion Module (LEM) Cyanotype Blueprint

X-20 Dyna Soar/Titan IIIC Cyanotype Blueprint

Early X-20 Dyna Soar Cyanotype Blueprint

Large X-20 Dyna Soar 2050E Cyanotype Blueprint

 

 

 

 Posted by at 4:03 pm

Chinese Space Lasers

 spacecraft  No Responses »
Feb 092023
 

Turns out the Chinese are zapping surface targets with lasers. This *seems* to be a benign scientific technique, checking atmospheric levels of carbon dioxide and pollution and whatnot… but this is the Chinese Communist Party we’re talking about, so…

 

Ominous Green Lasers Shot Over Hawaii Didn’t Come From NASA Satellite After All

This sort of thing would be weird as hell to see out in the wild. I’m not sure if this is naked-eye visible, however, or if it took sensitive cameras to pick this up.

 

 

 Posted by at 1:44 pm

The constantly evolving “Enzmann Starship”

 nukes, rockets, spacecraft  1 Response »
Jan 022023
 

The “Enzmann Starship” is named after Robert Enzmann, who “designed” it decades ago. Just exactly *when* has been an issue of some confusion in recent years.

It first came to light in the late 60’s or early 70’s, with claims that he thought it up around 1964 or so. The design is unique: a giant spherical ball of frozen deuterium fuel at the front, followed by a cylindrical ship, ending with a series of Orion-style nuclear pulse engines. It was an *ok* concept for a practical starship, though relatively recent analysis presented in the Journal of the British Interplanetary Society argued that it was not nearly as good as imagined. It became something of a sensation in the 70’s after appearing on the cover of “Analog” in 1973.

Nothing has ever been produced, so far as I’m aware, backing up the concept with any sort of detailed design of analysis until that JBIS paper. No reports, proposals, pages of math, from Enzmann seem to be available… just text descriptions of a few sentences and some art. And that’s fine. But in recent years the claims have become more and more expansive. Enzmann, near the end of his life, claimed that the design for a nuclear-pulse vehicle dated not from the time of the Orion program, but back to the *40’s*.

I spoke to Enzmann on the phone a few times over the years. He was enthusiastic, verbose… and baffling. He made lots and lots of claims about having worked on this or that amazing program, but when asked for verifiable details… it was classified. Those who have picked up his mantle and are trying to carry his torch seem to be following in his footsteps there, continuing his claims without much apparent criticism. I’ve recently engaged their twitter contact to get some sort of verification of his claims… but we have now reached the point where not only am I convinced that no such evidence will be produced, I feel no reason to assume anything remarkable is true at all. Behold:

Claiming that nuclear powered aircraft were actually built in the fifties and then buried in a mountain? Yeah… no. I’m out.

 

Where the thread started:

 Posted by at 1:44 pm

APR rewards: December (and November) 2022

 bomber, CAD Diagrams, hi-rez, hypersonic, jetliner, Monthly Historical Documents Program, Patreon, rockets, spacecraft, spaceplane, transports, VTOL  No Responses »
Jan 022023
 

The December 2022 rewards are available for APR Patrons and Subscribers. This latest package includes:

Large Format Diagram: AWACS model diagram

Document: “Preliminary Design of a Mars Excursion Module,” 1964 conference paper, Philco

Document: “Astronauts Memorial” 2 diagrams

Document: “Patrol Reconnaissance Airplane Twin Float,”  Convair brochure (via photos), 1944. Two piston engines, two turbojets

Document: “Hard Mobile Launcher,” Martin Marietta PR, two images. One photo, one artists impression

Document: “JVX Space Proposal” apparently a fragment, 1984 Bell maps of manufacturing facilities for what would become the V-22

Document: “Minimum Man In Space,” 1958 NACA memo describing proposals made to Wright Air Development Center for what would become the Mercury program

If you would like to help fund the acquisition and preservation of such things, along with getting high quality scans for yourself, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program. Back issues are available for purchase by patrons and subscribers.



 

And because I forgot to post about it at the time, the November 2022 rewards were made available a month ago:

Large Format Diagram: B-50A Superfortress Model Diagram

Document: “Design Study of a One Man Lunar Transportation device,” 1964 North American Aviation conference paper on a rocket “hopper”

Document: “Project EGRESS (Emergency Global Rescue, Escape and Survival System),” 1964 Martin conference paper on ejection capsule for aerospacecraft

Document: “The Hydrogen Fueled Hypersonic Transport,” 1968 Convair conference paper

CAD Diagram: Mach 3 turbojets: Allison 700 B-2 (J89), GE YJ-93-GE-3 (cutaway), P&W J58

If you would like to help fund the acquisition and preservation of such things, along with getting high quality scans for yourself, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program. Back issues are available for purchase by patrons and subscribers.



 Posted by at 10:52 am

The story of the Manned Orbiting Laboratory

 Recon, rockets, space station, spacecraft  No Responses »
Nov 202022
 

The National Reconnaissance Office is starting a series on the history of the Manned Orbiting Laboratory, a small space lab that was designed in the early/mid 1960s for the Air Force. Officially just a basic space lab, in reality it was an advanced (for the time) spy satellite. So far there is only Part One on the NRO website, and there’s not much to it… but we’ll see how it goes.

The story of the Manned Orbiting Laboratory – part one

 

As a reminder, there is a whole freakin’ mountain of MOL documents on the NRO website:

Index, Declassified Manned Orbiting Laboratory (MOL) Records

 

 Posted by at 12:20 am

EGRESS art: Take two

 hi-rez, hypersonic, launch vehicles, rockets, spacecraft, spaceplane  No Responses »
Nov 182022
 

A mere sixteen years ago I posted artwork of the Martin “EGRESS” ejection capsule meant to fling crew from a stricken spacecraft anywhere up to and including orbit. Those scans came from photocopies of a conference paper. I have at last now scanned the same work, producing slightly better results. The artwork is remarkable for one detail in particular: of the two crewmen, one is clearly Lance Squarejaw, wholly unfazed at his situation. The other is… not unfazed. I’d pay real money to get at the original color painting.

 

The whole thing – diagrams and art scanned at 600 DPI – will be offered up to APR Patrons & Subscribers soon.

 

 Posted by at 4:59 pm

Inflatable heat shield to be launched

 future projects, hypersonic, launch vehicles, research, rockets, spacecraft  No Responses »
Nov 102022
 

Atlas launch to test inflatable heat shield

 

A United Launch Alliance Atlas 5 is scheduled to lift off from Vandenberg Space Force Base in California at 4:25 a.m. Eastern Nov. 10. The primary payload of the rocket is the Joint Polar Satellite System (JPSS) 2 weather satellite …

A secondary payload on the launch of JPSS-2 is Low-Earth Orbit Flight Test of an Inflatable Decelerator (LOFTID), a NASA technology demonstration. While JPSS-2 will be deployed nearly a half-hour after liftoff, LOFTID will remain attached to the Centaur until 75 minutes after liftoff, following a deorbit burn of the Centaur.

Shortly before deployment, LOFTID will inflate a reentry shield six meters in diameter. That heat shield will slow down the vehicle from orbital velocity to Mach 0.7 as instruments on board collect data on the performance of the shield. LOFTID will then deploy parachutes to slow it down for the rest of its descent, splashing down in the Pacific east of Hawaii to be recovered by a ship.

Inflatable heat shields have been studied since before humans flew into space. Normal heat shields need to withstand insanely high temperatures, requiring materials that are either insanely expensive and complex, or that involve complex, fragile and heavy active cooling systems (such as water cooling through transpiration), or which are ablative. The latter variety is technologically fairly simple, but ablatives tend to be heavy and they are labor intensive to apply and make reusability difficult.

With temperatures reaching several thousand degrees, inflatable materials would seem inappropriate for heat shields. But those high temperatures are not a mandatory feature of re-entry. To a first hand-wave approximation, the maximum temperature is proportional to the mass-per-surface-area of the re-entry vehicle. A one-ton vehicle is going to have to shed all of its orbital velocity, converting all that kinetic energy into thermal, regardless of the size or shape or cross-sectional area. The way that is done is by compressing the air the vehicle slams into; the heating isn’t due to friction, but to the compression of the gas. If you can spread that heating energy out wider… the gas doesn’t heat up as much per unit surface area. Heating can be reduced from the sort of thing that will melt tungsten to the sort of thing that can be survived by advanced polymer fibers. As a bonus, the inflatable shield, being far larger than the solid shield on the vehicle, provides drag all the way down. In principle it would be possible to dispense with parachutes, wings, retro-rockets, and simply drift down using the shield as an inverted parachute. This was the case for the Douglas “PARACONE” concept from the mid-1960s, designed for, among other uses, as an emergency “life boat” for astronauts in space. It would provide for a safe entry, deceleration and touchdown on either land or water.

 Posted by at 5:15 pm

APR Rewards: October 2022

 bomber, CAD Diagrams, fighter, hi-rez, hypersonic, launch vehicles, Monthly Historical Documents Program, Patreon, rockets, spacecraft, spaceplane, VTOL  No Responses »
Nov 012022
 

The October 2022 rewards are available for APR Patrons and Subscribers. This latest package includes:

Large format art: A Bell Aerospace painting of the D188A VTOL fighter/bomber

Document: “Standard Aircraft Characteristics – Convair Class VF Seaplane Night Fighter (SKATE)” diagrams and data for seaplane jet fighter

Document: “21St Century Aerospace – The 20th Century Challenge,” General Dynamics presentation, late 80’s about hypersonics/NASP. From photographs.

Document: “Prototype X-14 VTOL Aircraft,” Bell Aerospace presentation, 1971, on the “SeaKat” operational naval VTOL. From photos, but art and diagrams were also scanned for clarity.

CAD Diagram ($5 and up): XB-70 Valkyrie forward fuselage configuration

 

If you would like to help fund the acquisition and preservation of such things, along with getting high quality scans for yourself, please consider signing on either for the APR Patreon or the APR Monthly Historical Documents Program. Back issues are available for purchase by patrons and subscribers.



 Posted by at 12:23 am
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