Dragonfly: Drone to Titan

 future projects, nukes, spacecraft, VTOL  No Responses »
Jun 272019
 

NASA has announced that the next planetary mission will be a flying drone probe for Titan. This should prove interesting, thought it would b best if instead of sending one helicopter, they put the things into mass production and sent a *lot* of them to Titan. Given how much cheaper Falcon 9 Heavy is than the likes of Delta IV, to say nothing of the *possibility* of BFR/Starship. Imagine sending a *fleet* of these things to Titan in one shot…

Also good news: it’s nuclear powered. So instead of slapping down into the methane mud and promptly running out of battery life, it could potentially function for *years.* Even if it’s just sitting on a hilltop motionless, if it has a decent camera angle on the surroundings it could provide years of interesting observations.

 Posted by at 3:34 pm

AGM-183A ARRW test flight

 future projects, hypersonic, nukes, rockets  No Responses »
Jun 172019
 

The USAF is already flying bits of the AGM-183A ARRW.

Air Force conducts successful hypersonic weapon flight test

This was a “sensor only” captive carry, which presumably means something along the lines of a wholly non-functional mass/aerodynamics simulator. It doesn’t really look like the sort of thing that could get to Mach 20 with a meaningful payload.

 

 

 

 

 

 

 

 

 

 

 Posted by at 10:32 pm

A Mach 20 Arrow

 bomber, future projects, hi-rez, hypersonic, nukes, rockets  No Responses »
Jun 162019
 

In response to both Russia and China claiming to have develop hypersonic weapons, the USAF has awarded contracts to Lockheed for two new hypersonic missile systems: the AGM-183A Air-launched Rapid Response Weapon (ARRW: “arrow”) and the Hypersonic Conventional Strike Weapon (HCSW: “hacksaw”). Little info is publicly available about them just yet (though it’s a safe bet that the Chinese have a complete set of plans; I’d be unsurprised if they had real-time access to the workstations being used to design them), but the ARRW is a boost-glide system that uses a rocket motor to launch a hypersonic glider to around Mach 20. This is not a particularly new idea; ground launched ideas like this go back more than fifty years, with air-launched versions seriously considered at least as far back as the 1980’s. The image below, taken from the SDASM Flickr page, shows a (presumably 1980s) General Dynamics design for an air to surface missile using a twin-engined rocket booster (presumably solid fuel) with a hypersonic glider.

The Lockheed ARRW is likely similar in concept if not detail. The basic idea of a rocket-booted glider is the most practical approach to long-range hypersonic strike weapons, though it’s not as flashy or trendy as airbreathing system such as scramjets. but while rocket systems would weigh more than an air breather, quite possibly by a lot, they would be much more reliable, cheaper to develop and capable of *far* greater speed. The ARRW, after all, is supposed to reach Mach 20. A scramjet would be damned lucky to exceed Mach 10, and testing has shown that a scramjet would but damned lucky to maintain that speed for long.

The heavier gross weight of a rocket system compared to an airbreather means that an aircraft could carry fewer weapons. The obvious solution is to build more carrier aircraft. While there will be no more B-1B’s or B-2’s, the B-21 *may* be built, though unlikely in any real numbers. A more practical solution might be to build specialized carrier aircraft, perhaps based on modified jetliners, perhaps even made unmanned, designed to fly in massed armadas with one or two manned control planes.

 

 

 Posted by at 4:14 pm

PDF Review: Chance-Vought Apollo Lunar Lander design

 launch vehicles, PDF Review, rockets, spacecraft  No Responses »
Jun 132019
 

One of the documents lost from the NASA Technical Report Server when NASA gutted it in 2013 was a Chance Vought corporation report on a simulator for their lunar lander. The “Apollo Rendezvous Simulator Study” from July 1962 focuses of course on a ground-based simulator, not on a detailed design of their lunar lander… but fortunately the documents do show art and diagrams of the lander. It is an odd looking little bug, with giant windows and a configuration similar to the Soviet LK in that there were no distinct descent and ascent stages, but a single manned vehicle that would leave the landing legs and some tanks behind when it lifted off.

Fortunately, even though it was scraped from the NTRS it can still be found on the Internet Archice/Wayback Machine. Huzzah!

Support the APR Patreon to help bring more of this sort of thing to light! Alternatively, you can support through the APR Monthly Historical Documents Program.

 Posted by at 12:31 am

“Mighty Mouse” in full rez

 hi-rez, Monthly Historical Documents Program, Patreon, transports, VTOL  No Responses »
Jun 102019
 

I made the full rez scan of this artwork available in 2015 to APR Monthly Historical Document Program subscribers as an “extra.” Subscribers get lots of stuff like this.

This late 1980’s art depicts the Bell “Mighty Mouse” tiltrotor, a contender for the FAAV (Future Attack Air Vehicle) concept. While details on this specific design have remained irritatingly hard to come by for the last thirty years, the design looks like functionally a VTOL OV-10 Bronco. Capable of carrying several Marines as well as a useful load of anti-tank weaponry, the Mighty Mouse would be able to fold up for storage on board a ship. The full rez version of the scan is on Dropbox HERE.

 Posted by at 2:24 pm

How to carry your FISH

 hi-rez, Recon, US Recon & Research Projects  No Responses »
Jun 092019
 

FISH (“First Invisible Super Hustler”) was a ca. 1958 Convair design for a Mach 4 ramjet powered recon aircraft. As ramjets are terrible at accelerating from the runway to cruise speed, the FISH was to be carried underneath a B-58 bomber. The FISH was a relatively small craft, but not *that* small; it actually didn’t quite fit underneath the B-58. Consequently it’s nose was designed to fold down and back while the B-58 was on the ground, providing clearance for the B-58’s nosegear. After liftoff and gear retraction the nose would fold up into its proper position. This would clearly have required fairly powerful actuators as the nose would basically be a substantial drag brake as it folded forward into position.

The FISH was described in the first issue of US Recon & Research Projects, available HERE.

The FISH was derived from the prior “Super Hustler” design study for a ramjet powered Mach 4 parasite bomber to be carried under the B-58. In the case of the Super-Hustler, a special booster stage was used, basically creating a three-stage vehicle. The FISH, if it worked, would have been a masterpiece of engineering, but the requirement for a carrier aircraft  was cumbersome to say the least. It was followed by the single-stage “Kingfish,” but in the end the Lockheed SR-71 was chosen. Not quite as fast as FISH, but much more practical.

 

 Posted by at 10:55 am

Space Station concept art

 hi-rez, Monthly Historical Documents Program, Patreon, research, space station, spacecraft  No Responses »
Jun 062019
 

Two pieces of Boeing concept art for mid-1960’s zero-gravity, single-Saturn V launched spacecraft. The first one looks like an interplanetary spacecraft, complete with drop-probes in the aft skirt.

I have uploaded the full resolution scan of the illustrations to the 2019-06 APR Extras Dropbox folder, available to $4 and up subscribers to the APR Monthly Historical Documents Program.

 

 

 Posted by at 3:57 pm

May 2019 Monthly Historical Documents

 fighter, hi-rez, hypersonic, launch vehicles, Monthly Historical Documents Program, nukes, Patreon, research, rockets, spacecraft, spaceplane  No Responses »
Jun 022019
 

On May 31st, APR Patrons and Monthly Historical Documents program subscribers were sent emails containing links to the May, 2019, rewards. This months set of documents and diagrams included high-rez copies of:

Document: “Manned Lunar Vehicle Design,” a General Electric paper from 1962 describing a direct-landing Apollo concept

Document: “AP-76 Project 1226,” a highly illustrated Republic Aviation report from May 1955 describing their design for the X-15

Diagram: “DNI-27C, VFX Design Study Fixed Wing/Buried Engine,” September 1968 North American Aviation fighter design

CAD Diagram: three-view of the Dandridge Cole/Martin Aircraft “Aldebaran” giant nuclear powered launch vehicle notional concept

 

If this sort of thing is of interest and you’d like to get in on it and make sure you don’t miss any of the forthcoming releases, sign up either for the APR Patreon or the APR Monthly Historical Documents Program.

 

 



All prior “back issues” are available  for purchase by subscribers. Recent months rewards have included:

 Posted by at 11:46 pm