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#26 2021-07-18 12:41:11

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,326

Re: Hubble Space Telescope Permanent Maintenance Station

For SpaceNut re #24

Thanks for continuing to think about how this topic could be advanced.

If I understand your point in sentence #2 correctly, the solution I am offering would appear to provide a solution.

A brand new Shuttle frame, built from original drawings (as of the last item constructed) would have all the capabilities of the original Shuttles, but it would NOT have heat shields or any extraneous equipment not needed for the service mission.  For example (just one of many) it would not need wheels in the wings or in the nose.  All the space recovered could (and should) be used for storage of liquids needed for flight up to the Hubble and back to LEO, and for operations while in service mode.

The cost of a brand new Shuttle designed for this specialization should be a fraction of the original cost.  There should need to be minor expenditures to update electronics, and to improve subsystems where that is appropriate. 

The massive engines could be replaced by much smaller ones suitable for adjusting orbit from LEO to Hubble and back.  Due to the lack of heat shields, the design should employ rocket thrust to achieve safe return to LEO without atmospheric braking.

Transport of personnel from LEO to Hubble and back should be achievable by this design, but if an alternative vehicle is found more cost effective, then the Shuttle service unit could certainly transport hardware back and forth.

In place of the heat shields on the underside of the body and wings, solar panels would be a useful and appropriate substitute.

(th)

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#27 2021-07-20 23:18:35

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 23,096

Re: Hubble Space Telescope Permanent Maintenance Station

AAMntRD.img?h=799&w=799&m=6&q=60&o=f&l=f

edit
other items on this site
https://www.nasaspaceflight.com/tag/hubble/

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#28 2021-07-21 06:19:14

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,326

Re: Hubble Space Telescope Permanent Maintenance Station

For SpaceNut re #27

Thank you for this dramatic reminder of the value of Hubble!

I'd like to see this topic develop into a feasible, affordable, salable plan that Americans would support to put a permanent service facility on orbit just below Hubble.  We've had several suggestions so far, but only two qualify for consideration as permanent. On the one hand, we have a truss floating in empty space, and that may evolve into something at some point.  On the other hand, we have a fairly substantial proposal to build a Shuttle for the Service Mission using existing drawings but omitting unneeded mass (eg, tiles and wheels) while adding solar panels in place of tiles and modern electronics, as well as whatever improvements to the human habitat (cabin) modern capabilities allow.

There is a window of opportunity (in a social context) when the brush with demise is fresh in memory.  A proposal should be on it's way to NASA and the Senate within a few weeks.

(th)

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#29 2021-07-21 18:12:04

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,326

Re: Hubble Space Telescope Permanent Maintenance Station

Google came up with these snippets when I asked who made the Space Shuttle:

Rockwell International
Major American Manufacturing Conglomerate
Rockwell International
Rockwell International was a major American manufacturing conglomerate involved in aircraft, the space industry, defense and commercial electronics, components in the automotive industry, printing presses, avionics and industrial products. Rockw…
Wikipedia iconWikipedia
Founded: 1973
Ceased operation: 2001
Headquarters: Milwaukee
Spacecraft: Space Shuttle Challenger · Space Shuttle Columbia · Space Shuttle Atlantis · Space Shuttle Enterprise · Space Shuttle Endeavour
Rockets: Saturn-Shuttle · Space Shuttle
Subsidiaries: Aero Commander · Rocketdyne · EJA Engineering
People also search for

I assume NASA has copies of the plans, and there may be copies elsewhere.

Also: https://en.wikipedia.org/wiki/Studied_S … le_designs

(th)

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#30 2021-07-21 20:03:09

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 23,096

Re: Hubble Space Telescope Permanent Maintenance Station

3d imagery can also be used to aid in a total redesign even when plans are in blue print paper or on micro film and not in digital media that was kept up to date with modern OS systems as has been found in the past.

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#31 2021-07-26 11:35:30

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,326

Re: Hubble Space Telescope Permanent Maintenance Station

The following was transmitted to the North Houston Chapter of the National Space Society, in care of FriendOfQuark1, who keeps a wary eye on the NewMars forum.

Begin transmission:

The links below are from GW Johnson, posting on the NewMars forum web site.

Dr. Johnson is a retired aerospace engineer who taught at all levels in the course of his long career.

The subject at hand is a proposal to build a vehicle to service the Space Shuttle.

While I favor building a Space Shuttle using existing plans, omitting the heat shield, wheels and engines, Dr. Johnson is in favor of designing a new vehicle from scratch.

My concern is that building a new vehicle from scratch is far more difficult to achieve than would be building a new version of a tried and true design, and fitting it for permanent Hubble service missions from LEO to Hubble and back to LEO.

Here are links to a series of messages by Dr. Johnson in the month of July, 2021.

I would like to think that someone in the North Houston chapter of the NSS would be interested in trying to persuade Dr. Johnson to visit the chapter during it's meeting August 7th.

Begin links, in reverse chronological order:


http://newmars.com/forums/viewtopic.php … 84#p181884

http://newmars.com/forums/viewtopic.php … 85#p181885

http://newmars.com/forums/viewtopic.php … 29#p181929

http://newmars.com/forums/viewtopic.php … 81#p182081

http://newmars.com/forums/viewtopic.php … 85#p182085

http://newmars.com/forums/viewtopic.php … 23#p182423

http://newmars.com/forums/viewtopic.php … 32#p182432


End Transmission:

(th)

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#32 2021-07-26 19:22:30

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 23,096

Re: Hubble Space Telescope Permanent Maintenance Station

dial up starting ….

This is the open cargo bay of a shuttle...look at all of the empty room and inside is an ISS module which is basically the size of the extended length cygnus.

The cargo bay is a space 15 ft (4.5 m) wide by 60 ft (18 m) long.

image_gallery?uuid=d27e1e05-d717-494e-ba6b-d581bfb8608a&groupId=163813&t=1360917444004

this is the insides of an ISS module.

113868main_mplm_sts102-343-008.jpg

modem screech ending.....

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#33 2021-07-26 20:20:16

RobertDyck
Moderator
From: Winnipeg, Canada
Registered: 2002-08-20
Posts: 6,743
Website

Re: Hubble Space Telescope Permanent Maintenance Station

I read about the Roman telescope.
Wikipedia: 2012 National Reconnaissance Office space telescope donation to NASA
In 2012 the NRO donated two KH-11 Kennen spy telescopes to NASA. One is configured for wide field, called Roman. The other is not yet committed. Appears these were the telescopes Shuttle's cargo bay was designed to carry. Hubble has the same diameter mirror because Hubble was designed to fit in Shuttle's cargo bay. For some things Roman is a significant upgrade. And Roman will be able to image UV. But it's wide field. Should we lobby for the second one to be configured for asteroids?

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