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  Exploration: Asteroids, Moon and Mars
  [Discuss] NASA's Orion Exploration Mission-1

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Author Topic:   [Discuss] NASA's Orion Exploration Mission-1
Robert Pearlman
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Posts: 33986
From: Houston, TX
Registered: Nov 1999

posted 07-09-2013 08:17 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
Editor's note: In an effort to keep the topic NASA's Orion Exploration Mission-1 (EM-1) focused on status updates, readers' feedback and opinions are directed to this thread.

Please use this topic to discuss NASA's 2018 first flight of the Space Launch System with its Orion crew module.

GTspace
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Posts: 219
From:
Registered: Dec 2000

posted 12-06-2014 03:25 PM     Click Here to See the Profile for GTspace     Edit/Delete Message   Reply w/Quote
Aviation Week reporting delays.
An uncrewed flight of NASA's Orion crew capsule atop the agency's new Space Launch System (SLS) in December 2017 has slipped into calendar year 2018, according to the European Space Agency (ESA).

...a precise launch date for the 2018 flight test has not been set, though after evaluating the results of today's Orion EFT-1 flight, NASA is expected to determine a new launch date by late spring 2015.

E2M Lem Man
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Posts: 846
From: Los Angeles CA. USA
Registered: Jan 2005

posted 12-08-2014 07:44 PM     Click Here to See the Profile for E2M Lem Man   Click Here to Email E2M Lem Man     Edit/Delete Message   Reply w/Quote
As I look ahead to the 2018 Exploration Mission-1, it will be 50 years since Apollo 8, America's first manned flight around the Moon. I can only hope that the payload will commemorate that accomplishment and I also feel that it has to be flying out to the lunar vicinity or even orbit the Moon for anyone to take this seriously. Let's go to the moon... or beyond!

johntosullivan
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Posts: 155
From: Cork, Cork, Ireland
Registered: Oct 2005

posted 12-17-2014 12:09 PM     Click Here to See the Profile for johntosullivan     Edit/Delete Message   Reply w/Quote
Is there a program name for these Orion flights?

Previously the Ares launcher and Orion capsule were part of the Constellation program. If that was cancelled, to which program do the SLS and Orion now belong?

Robert Pearlman
Editor

Posts: 33986
From: Houston, TX
Registered: Nov 1999

posted 12-17-2014 12:42 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
NASA is not building SLS or Orion under a specific program by design.

The agency has said that it is building the vehicles as a capability, rather than under a specific program, so they can then be applied to many different programs (e.g. SLS can be used to launch spacecraft in support of a crewed exploration program or launch a large observatory or other robotic mission under a different program).

dabolton
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Posts: 407
From: Seneca, IL, US
Registered: Jan 2009

posted 09-08-2015 06:02 PM     Click Here to See the Profile for dabolton     Edit/Delete Message   Reply w/Quote
I'm a little confused about the "seven welds" figure. It would appear those individual components are made of up dozens/hundreds of welds themselves.

Robert Pearlman
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Posts: 33986
From: Houston, TX
Registered: Nov 1999

posted 09-08-2015 06:03 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
The seven refers to the major component welds:
The primary structure of Orion's crew module is made of seven large aluminum pieces that must be welded together in detailed fashion.

tfrielin
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Posts: 156
From: Athens, GA
Registered: Feb 2007

posted 02-03-2016 11:23 AM     Click Here to See the Profile for tfrielin   Click Here to Email tfrielin     Edit/Delete Message   Reply w/Quote
"The structure shown here is 500 pounds lighter than its Exploration Flight Test-1 (EFT-1) counterpart," said Mike Hawes, Lockheed Martin Orion vice president and program manager. "Once the final structural components such as longerons, bolts and brackets are added, total crew module structural weight savings from EFT-1 to EM-1 will total 700 pounds."
If they've done such a good initial job at shedding this weight, then why don't they just go for making Orion land on land?

I've been told by informed people that the weight penalty for that would approach one thousand pounds — not much more than what they've already shed here.

Frankly, I'd take Orion more seriously as a long-term prospect if it would land at Edwards or the Great Plains instead of the ocean and, in doing so, greatly reduce the costs.

One thing of note in this regard: The splashdown dispersions of all the Apollo landings — earth orbital and lunar return wold fit into a footprint no larger than Dulles Airport. So, spot land landings could not be that difficult.

Robert Pearlman
Editor

Posts: 33986
From: Houston, TX
Registered: Nov 1999

posted 02-03-2016 01:54 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
As I understand it, every pound saved in the construction of Orion is still needed for crew and mission equipment to be packed aboard the spacecraft. The initiative to shave weight off the capsule was reportedly driven by that need.

Fra Mauro
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Posts: 1241
From: Bethpage, N.Y.
Registered: Jul 2002

posted 02-08-2016 06:08 PM     Click Here to See the Profile for Fra Mauro   Click Here to Email Fra Mauro     Edit/Delete Message   Reply w/Quote
Each milestone gets the adrenaline pumping a little in anticipation of the flight. I just hope the next President doesn't cancel the program.

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