John M Powell
@JohnMPowell1
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Dad, President of JP Aerospace, pilot, spaceship, airship and submarine builder, accordion squeezer and violin squeaker .
Joined July 2012
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Last Seen Profiles
AP is now reporting that the support ship for the Titan submersible received a position ping from the Titan just before comms went down. It showed that the sub was just above the Titanic. I am hopeful that this is narrowing the search area considerably. No other news.
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An amazing display of the impact of low speed aerodynamics.
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They launched with 4 days of life support on board and strong hull. There is an armada searching for them. There is always hope.
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Our other airship, the Tandem, up top at 95,000 feet doing it's thing. For scale the propeller has a six foot span.
#jpaerospace
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There is still the very real possibility that the Titan is on the surface w/ comms down. When on the surface, without its support barge, Titan is slightly underwater. The area just below the surface is very hard to see with radar or sonar. That's why the drug subs are so popular.
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Forgotten Spacecraft: This was taken from the Soviet Zond-7 August 1969.
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There are multiple deep diving underwater drones at the Titan dive site right now that can reach the needed depth. These are industrial ones. More are on the way.
They attach cables to lift equipment off the bottom as part of their job.
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I don't like mentioning unverified data, but this is looking strong. Oceanologist Dr S. Boxall, of Univ. of Southampton reported that an emergency ping was heard from the Titan. Likely it contains no data but could be used to determine if the sub is on the surface or the bottom.
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Sub down. What we know so far. 5 folks on board. They lost contact with the sub 1 h, 45 m into the dive. This put them approaching the bottom but not there yet. I was hoping that it was a power failure that popped them back to the surface, but surface search has not found them.
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Rolling Stone is reporting banging sounds at intervals coming from the last know position of Titan. This is both heartache and hope. Now they can use an ROV to get a cable down there and pull them up. They are still in the window.
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Space Aerodynamics! Yes, that's a thing. In wind tunnel tests they discovered the Mercury capsule had a 2nd stable position. Above Mach 6 in the thin atmosphere early in reentry it could be stable nose 1st. The non heat shield side. A little spring loaded flap on the nose fix it.
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The Orbital Ascender being escorted by a T-38. Artists concept by WaveLabs.
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News of the Titan is coming out in drips.
They're now reporting that several ROV are on tarmacs awaiting flights to ships that will take them to the Titanic site. People are working the problem.
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Over a mile long, gossamer, lighter than air, hypersonic, MHD/Plasma driven, space launch vehicle.
The Orbital Ascender H1 Variant.
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All the news from the Titan is of the rescue effort logistics but no news about the sub itself. Winches capable of lifting the Titan are nearing the site, ROV's that can reach those depths are in the water, the French ROV that's one of the best in the world will be there tonight.
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Yesterday we ran the electrodes from our MHD engine unit in water to do some visualizations. We left the top magnets off so we could see it. This is at 12 volts and 0.35 teslas.
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Of course we flew living room furniture to the edge of space. Why do you ask?
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The Saturn H-1 engines (the original engines for the Saturn) were intended to be reusable. The Saturn engineers were very ahead of their time. This is a pic of salt water exposure test. The motor then went back on the test stand to be fired.
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Another artists concept of the Orbital Ascender from WaveLabs. Near the ground gives some scale to the 6000 foot long vehicle.
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Hypersonic Inflatable. In 1964 NASA launched the IMP Glider with a Aerobee sounding rocket. 96 miles up it was deployed and inflated. It flew a Mach 8 "semi-reentry" and landed in the White Sands Missile Range. Don't tell me balloons can't break the sound barrier...
#jpaerospace
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I don't think this is the same vehicle as the one see above Sendai. They look like that are the from the same maker however the vehicle over Sendai had propellers but no solar panels. It is also further from the balloon.
#jpaerospace
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The Orbital Ascender above Edwards AFB.
Another great artist concept of the Orbital Ascender from WaveLabs. Near the ground gives some scale to the 6000 foot long vehicle.
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Early airship. Charles J.Stroebel flying his airship in South Dakota, 1908.
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I hate to mention this, but somebody dropped their space station in the water...
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This is being reported about the Chinese balloon:
"DOD recommended against shooting it because it could contain helium. That would likely cause an explosion that could cause debris to fall over a populated area. "
Helium Explosion? Sigh...
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We flew both Away 100 and 101 for acclaimed Japanese flower artist Azuma Makoto.
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Hypersonic Inflatable. In 1964 NASA launched the IMP Glider with a Aerobee sounding rocket. 96 miles up it was deployed and inflated. It flew a Mach 8 "semi-reentry" and landed in the White Sands Missile Range. Don't tell me balloons can't break the sound barrier...
#jpaerospace
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Jaw dropper of the morning. A control surface interacting with plasma during reentry.
From Starship's test flight this morning.
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Did you know that the Mercury had a second hatch? You kind of need to disassemble part of the spacecraft but you could get out that way.
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Balloon burst at 100,000 feet. This is from the Away 81 mission. The camera was at 200 frames per second. The second is my favorite.
#jpaerospace
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Hypersonic Inflatable. In 1964 NASA launched the IMP Glider with a Aerobee sounding rocket. 96 miles up it was deployed and inflated. It flew a Mach 8 "semi-reentry" and landed in the White Sands Missile Range. Don't tell me balloons can't break the sound barrier...
#jpaerospace
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Balloons on the job. Adding cuteness to the world.
It doesn't have all be serious...
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The floating barge just gets it off and on the support ship.
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I'm amazed at how fast I've gone from "I wish everyone cared more about balloons" to "I everyone would just forget about balloons".
(pic: Ascender 175 airship cir 2004)
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YouTube:
The Pentagon announced that a Chinese Spy Balloon is over the US. This is kind of my thing. I had to put my 2 cents in. Check it out.
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@Itizou_Daimon
I've seen the video. It's very similar to our vehicles in many ways. When every we fly it also creates and uproar of sightings. However, because of the great amount of government approvals that need to take place it's never truly unknown.
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Hypersonic balloon! More formally called the Inflatable Exoatmospheric Object (IEO). It was a reentry decoy for nuclear warheads.
#jpaerospace
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Space Aerodynamics! Yes, that's a thing. In wind tunnel tests they discovered the Mercury capsule had a 2nd stable position. Above Mach 6 in the thin atmosphere early in reentry it could be stable nose 1st. The non heat shield side. A little spring loaded flap on the nose fix it.
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This is what a high altitude airship with balloons looks like. JP Aerospace Tandem airship at 95,000 feet above Nevada.
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Don't hate me. I like to package prototype electronics in ziplock food containers. They're easy to use, no screws like a traditional project box, 5 for a dollar and most important they are clear so you can see inside while it's working. Don't worry about pretty until production.
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They worked!!!! We're bouncing off the walls! We did the 1st firing of the ablative graphene electrodes in the MHD plasma engine unit. The electrodes ablated away removing fouling & kept electrically connected to the plasma during the entire run. Implications for the whole field.
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Orbital Ascender docked to the International Space Station, to scale.
Yes, we're that bonkers.
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I love the smiles when they are go for launch!
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A few seconds on top of the world. This is one of the joys of running your own space program.
#jpaerospace
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A lot has been made of the bolt on hatch of the Titan. This is not an engineering choice I would have made but it more common than you think. This is William Beebe & Otis Barton bathysphere from 1932. There are also several modern vehicles that use bolt on. Why? It doesn't fail.
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The Saturn H-1 engines (the original engines for the Saturn) were intended to be reusable. The Saturn engineers were very ahead of their time. This is a pic of salt water exposure test. The motor then went back on the test stand to be fired.
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Happy Friday!
Yes, that is a margarita being frozen at edge of space.
I love my job.
#jpaerospace
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This is from our plasma engine development. During the run sparks from the motor get bent by the magnetic fields. This was from MHD firing test 113.
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MHD in water round 2. Yesterday we continued our visualization runs. This gives the whole team a chance to see what's going on inside the engine. This run was w/ potassium at saturation in the water and 24 volts at 3 amps at 0.36 Teslas magnetic field strength (magnet is under).
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Research balloon bursting at 100,000 feet. This is from the Away 84 mission. The pics are 1/200 seconds apart. The balloon is about 50 feet in diameter.
#tuesdaymotivations
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Those who boldly go.
There will be second guessing, recriminations, investigations, many very justified other not. However before all that let's take a moment to honor those who boldly go and sometimes don't come home.
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The balloon of one vehicle bursting seen from another vehicle a half mile off.
This was Away 105 and Away 103.
#jpaerospace
#science
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It's easy to forget that numbers are actually an invention.
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Incredible
Hundreds of drones were launched in the night sky in the city of Veliky Novgorod in Russia to commemorate the 60th anniversary of Yuri Gagarin's journey to space.
Get today's top stories:
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The little known Air Force Grid Sphere Satellite.
This was a balloon satellite similar to the Echo balloon satellite. It was launched 1966 from Vandenburg AFB on an Atlas rocket. The black portions disintegrated in orbit leaving only the grid sphere.
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If the Titan is on the surface it's still a race. The front of the sub needs to be removed for the crew to get out. Our sub, Bellavia, has a snorkel to bring in air on the surface w/o opening the hatch. I don't know if Titan has one.
Sub Bellavia video:
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David Pogue, a reporter for CBS who dived on the Titan last year reported that it carried an inflatable balloon lift system. however, I don't see how that would be viable at those depths. It would also need to be huge, unless it was a signaling device only.
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Are we sure we can't make the new lunar landers look like this?
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How many out there miss the Shuttle? I do.
12 September 2009. STS-128 (ISS assembly flight 17A), NASA Space Shuttle Discovery mission to the ISS, returned to Earth.
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Smile for the day, wait for it.
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On board Away 103. The balloon has just popped and the vehicle is Earthbound.
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Growing up in the 60's Gemini was my space program. Which one was yours?
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If I ever become a mad scientist, this will be my car.
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Two other configuration of the Advanced Arrow SST that were studied at NASA Langley in 1972.
I particularly like the lower one for the coolness factor alone.
#FridayVibes
#jpaerospace
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The frame and aft cover were reportedly what has been seen. Frustratingly the frame is designed to be detachable in an emergency and the non structural cover likely to have come off with it. However if Titan had surfaced directly above the Titanic it surely would have been found.
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What can I say, it was a late night before the mission, the LEGOS were there, the servo was there, we had a touch of extra payload weight....
#jpaerospace
#StarWars
#LEGO
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I'm amazed how small and intricate it is.
This delicate tiny carving of a water bird was created c. 33,000 years ago. Thought to be a diver,cormorant,or duck,the figure is from beak to tail 4.7 cm long. The sculpted piece of mammoth ivory, found in Hohle Fels cave in Germany, may be the earliest representation of a bird.
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The part that blows me away is that this isn't a giant research team, just a guy working on his hand project. So much tech is available to us. The ability to change the world is in everybody's hands. What are you making?
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Spacecraft before CAD. I love it when I find old hand draw sketches from the early space program.
This is a sketch by Caldwell Johnson, 1960. This led to the seating arrangement of the Apollo Command Module. The fun bit is there are 4 Astronauts.
Ref: NASA SP-4009
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This is a 5300 year old Sumerian star chart. It's on display at the British Museum. When I go to space myself for the 1st time I will have a 3d printed replica of this in my pocket.
Not to find my way home, but to find my way out there.
#jpaerospace
@britishmuseum
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The opening desert scene of "The Time Tunnel" was filmed only 60 miles from our test site. Only a coincidence...
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My Eagle from Space 1999. 3/4 is original, the rest is 3/4 printed replacements.
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Things to come.
Some aircraft just won't fit in the hanger. Artists concept of the Orbital Ascender.
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I couldn't resist printing up a violin. It has a good sound but very subdued (making it for every one who listens to me their favorite violin). I think I printed the shell at too high a density.
Now I just need to find a printable viola design.
#jpaerospace
#3Dprinting
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We have a helicopter on Mars, how about a boat on Titan? It needs a name.
Titan (moon of Saturn) is the only known world besides Earth to have rivers, lakes, and seas, on its surface!
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It's late Sunday night. You know you're tired when you can't stop thinking about the flying pinto...
(not photoshopped, they really did this)
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Our three 3d printers have been running 24/7 for the last month printing airship parts. There was a bit of a gap so of course I had to print a violin! Now it needs sanding and strings.
#3dprinting
#violin
#jpaerospace
#3Dprinted
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I've never come up with a good name for my MonoVelo. I was thinking about "B-Wing" from Star Wars. Any thoughts?
#jpaerospace
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Dr. Felch & Dr. Cahalan with their CPI 110 GHZ gyrotron, capable of producing 1 MW of output power for 0.6 secs of 600kW for 10 seconds. Right: 1 MW 140 GHZ gyrotron beam of ~3cm in dia striking a microwave ablative rocket. 2003
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I've been experimenting with Midjourney, the AI image creation tool. I fed the program "Astronaut, playing violin, in the style of daVinci. This is what came out.
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Tandem airship up top at 95,000 feet. To give you a sense of scale the propellers are 6 feet long.
#jpaerospace
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