Author Topic: JP Aerospace  (Read 120428 times)

Online Mandella

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Re: JP Aerospace updates
« Reply #160 on: 10/07/2020 06:18 pm »
Wish I had an extra 100 million or so to drop on these guys. And no, I don't think it will work, but semirigid airships in spaaaace is just too cool a concept not to try.

 :)

Offline FutureSpaceTourist

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Re: JP Aerospace updates
« Reply #161 on: 10/10/2020 03:31 pm »
https://twitter.com/johnmpowell1/status/1314947912556658688

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Everything we do is in steps. This is the concept configuration for the Block III Dark Sky Station, a 14 person outpost floating at 140,000 feet. The 6,000 foot diameter facility share identical technology with the Ascender airships.
jpaerospace.com #technology

Offline Comga

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Re: JP Aerospace updates
« Reply #162 on: 10/11/2020 12:05 am »
Can anyone explain the open star shape?
What reacts the torque on the buoyant, almost kilometer long tubes?
What makes this stable to keep it horizontal?
Where do the "14 person(s)" go?
One might think six tubes, in a symmetrical pyramid of equilateral triangles, with a gondola suspended below the middle, would be stable, rigid, have less to no torque at the joints, and have a logical place for payload.
« Last Edit: 10/11/2020 12:05 am by Comga »
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline FutureSpaceTourist

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Re: JP Aerospace updates
« Reply #163 on: 10/17/2020 04:36 pm »
https://twitter.com/johnmpowell1/status/1317502848301629440

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Ascender 26 looks so small next to Ascender 9.
(we changed how we name them, before it was by length, now it's number of ones we've built.
jpaerospace.com #highaltitudeairship

Offline FutureSpaceTourist

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Re: JP Aerospace updates
« Reply #164 on: 11/11/2020 01:19 am »
https://twitter.com/johnmpowell1/status/1326345557955080192

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It's bad drawing time! This is an updated orbital airship development path. From the left: Ellipse, Mach Glider Block 2, Mach Glider Block 4, TransAtmospheric Ascender, Initial Orbital Ascender, Full Scale Orbital Ascender. A lot goes on in between, but these are the big steps.

Offline FutureSpaceTourist

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Re: JP Aerospace updates
« Reply #165 on: 11/30/2020 08:30 pm »
https://twitter.com/johnmpowell1/status/1333522481160732673

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OK, scary moment. Everyone's been telling me I need to show my face & actually talk in my videos. This sounds suspiciously like public speaking...
OK, here it goes. A time lapse inflation of the Ascender 9 airship with yours truly at the start & finish.


Offline FutureSpaceTourist

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Re: JP Aerospace updates
« Reply #166 on: 01/26/2021 01:26 am »


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As part of our engine development we've begun plasma editing tests on our MHD units. We're using long bore (20in+) acrylic w/ O2. The clear acrylic lets us see what's happening w/ the plasma, however it's getting pricey. If we can use stacked & welded squares it saves a bunch.  In this test we're using a side O2 feed.

Offline zeds

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Re: JP Aerospace updates
« Reply #167 on: 02/13/2021 06:07 am »
why not mix airship to orbit and beamed power. instead of having solar cells on top of the airship, why not beam power from the bottom?

Online Asteroza

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Re: JP Aerospace updates
« Reply #168 on: 02/14/2021 08:58 pm »
why not mix airship to orbit and beamed power. instead of having solar cells on top of the airship, why not beam power from the bottom?

Line of sight of the beaming station is a problem.

I suppose it wouldn't be entirely insane to string up a mesh rectenna in between the V legs of the airship to receive beamed microwave power.

Offline edzieba

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Re: JP Aerospace updates
« Reply #169 on: 02/15/2021 09:42 am »
With the whole idea being a low-thrust-long-duration burn to orbit, you'd need a worldwide ring of power beaming stations for each orbital inclination you wanted to reach (including stations strong across any oceans you'd be crossing).

Offline Craftyatom

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Re: JP Aerospace updates
« Reply #170 on: 02/15/2021 07:53 pm »
With the whole idea being a low-thrust-long-duration burn to orbit, you'd need a worldwide ring of power beaming stations for each orbital inclination you wanted to reach (including stations strong across any oceans you'd be crossing).
I can't believe I'm about to say this, but:
how about power beamed from orbit?
All aboard the HSF hype train!  Choo Choo!

Online Asteroza

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Re: JP Aerospace updates
« Reply #171 on: 02/15/2021 09:15 pm »
With the whole idea being a low-thrust-long-duration burn to orbit, you'd need a worldwide ring of power beaming stations for each orbital inclination you wanted to reach (including stations strong across any oceans you'd be crossing).
I can't believe I'm about to say this, but:
how about power beamed from orbit?

Why not? Many SPS plans post-first-sat-bootstrap have proposed using early GEO SPS sats to supply beamed power to LEO built sats for electric propulsion up to GEO. There's also the notion of an industry of laser beaming sats to provide propulsion power remotely. But with the classic chicken-egg of needing at least three GEO beamer sats to cover non-polar earth orbits...

Offline edzieba

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Re: JP Aerospace updates
« Reply #172 on: 02/16/2021 08:54 am »
With the whole idea being a low-thrust-long-duration burn to orbit, you'd need a worldwide ring of power beaming stations for each orbital inclination you wanted to reach (including stations strong across any oceans you'd be crossing).
I can't believe I'm about to say this, but:
how about power beamed from orbit?
Technically plausible. It would however mean taking a geostationary fixed-target power beaming system (Death Rays For Peace) and giving it the ability to focus tightly on a high-speed moving target. That starts to get into 'there are international arms treaties on not doing this' territory of bureaucratic inconvenience.

Offline zeds

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Re: JP Aerospace updates
« Reply #173 on: 02/23/2021 04:37 pm »
With the whole idea being a low-thrust-long-duration burn to orbit, you'd need a worldwide ring of power beaming stations for each orbital inclination you wanted to reach (including stations strong across any oceans you'd be crossing).

let's say mixing beamed power and airships is possible and an organization made a ring of power beaming stations. and now we are ready to beam power to airships. how much power are we talking about? what is the range of power we need to send an airship up(or just keep it stationary like the dark sky station from jp aerospace), from minimum to maximum? question for everyone

now a second thought, a ring of beaming stations? that does sound like a lot of work. someone here brought up beaming power from a solar satellite from orbit. i thought about this before also. beaming from bottom will take multiple stations because of rotation. beaming power from up top should be more simpler. but then you have the problem of aiming, line of sight and weapons/territory/defense laws and death rays problem.

also, beaming power from the bottom most likely would have to come from an energy source that is not solar. while from orbit with solar satellite would mean renewable and it would be available 24/7 without limit.

was reading https://en.wikipedia.org/wiki/Stationary_High_Altitude_Relay_Platform
« Last Edit: 02/23/2021 05:00 pm by zeds »

Offline FutureSpaceTourist

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Re: JP Aerospace updates
« Reply #174 on: 05/13/2021 06:56 am »

Offline FutureSpaceTourist

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Re: JP Aerospace updates
« Reply #175 on: 06/22/2021 06:43 am »

Offline jpowell

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Re: JP Aerospace updates
« Reply #176 on: 07/21/2021 12:22 am »
We use our submarine as an analog for spacecraft development. Life support, human/systems integration, training etc. We just posted of short video on working on the sub.
Youtube:

Offline FutureSpaceTourist

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Re: JP Aerospace updates
« Reply #177 on: 07/21/2021 06:33 am »

Offline FutureSpaceTourist

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Re: JP Aerospace updates
« Reply #178 on: 07/23/2021 06:10 am »

Offline FutureSpaceTourist

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Re: JP Aerospace updates
« Reply #179 on: 07/29/2021 05:17 am »

 

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