Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
embedsri
User Rank
Rookie
re: NASA, SpaceX lower expectations for historic flight to space station
embedsri   5/22/2012 2:35:04 PM
NO RATINGS
Congratulations SpaceX

george.leopold
User Rank
Rookie
re: NASA, SpaceX lower expectations for historic flight to space station
george.leopold   5/22/2012 2:09:24 PM
NO RATINGS
SpaceX's Dragon spacecraft reached orbit early Tuesday (May 22) morning, achieving the first goal of a critical test flight to the International Space Station. SpaceX and the commercial space era now enter a new phase as the Dragon spacecraft and its controllers seek to navigate to the space station in preparation for the first-ever docking of a commercial spacecraft with the orbiting lab. So far, so good.

george.leopold
User Rank
Rookie
re: NASA, SpaceX lower expectations for historic flight to space station
george.leopold   5/21/2012 7:32:13 PM
NO RATINGS
The Merlin main engines on the Falcon 9 rocket are a version of a NASA-developed engine from the 1980s called Fastrac. SpaceX also needs a better second stage engine, and rockets experts favor the J-2X engine, an improved version of the Saturn V second stage engine. What SpaceX and other commercial companies relying on rockets for launches need to focus on next is the "specific impulse" of their engines and lowering the cost per pound to orbit to $1K, iniitally, and some day in the far off future, $100 per pound. For how SpaceX is pulling this off, I highly recommend: http://www.airspacemag.com/space-exploration/Visionary-Launchers-Employees.html

microe
User Rank
Rookie
re: NASA, SpaceX lower expectations for historic flight to space station
microe   5/21/2012 5:30:51 PM
NO RATINGS
It is a amazing that a small private company can do such sophisticated space launch that few countries in the world can accomplish. Wonder how much they paid NASA to get these technologies, and how they can do it at lower cost than NASA.

george.leopold
User Rank
Rookie
re: NASA, SpaceX lower expectations for historic flight to space station
george.leopold   5/21/2012 12:35:28 PM
NO RATINGS
SpaceX said it will try again on Tuesday (May 22) a.m. after replacing a faulty valve in a center main engine (nine main engines are arranged in a tic-tac-toe configuration). A sensor had picked overpressure in the engine's combustion chamber. Stay tuned.

embedsri
User Rank
Rookie
re: NASA, SpaceX lower expectations for historic flight to space station
embedsri   5/21/2012 5:11:48 AM
NO RATINGS
Better luck next week.

sharps_eng
User Rank
Rookie
re: NASA, SpaceX lower expectations for historic flight to space station
sharps_eng   5/19/2012 6:17:22 PM
NO RATINGS
That in itself must have been pretty dramatic, practically everything running at full blast - getting an orderly shutdown from that point is just as hazardous as everything else up to that point - can't just lean back and say 'Whew!', everything has to be depressurised, cooled down or warmed up, emptied and made safe... exciting stuff...plenty for the flight engineers to get intense about

KB3001
User Rank
CEO
re: NASA, SpaceX lower expectations for historic flight to space station
KB3001   5/19/2012 2:20:31 PM
NO RATINGS
Hopefully it's just a blip. Better luck next week!

george.leopold
User Rank
Rookie
re: NASA, SpaceX lower expectations for historic flight to space station
george.leopold   5/19/2012 1:30:03 PM
NO RATINGS
Saturday's launch attempt was aborted at T-minus 0.5 seconds when sensors reportedly detected overpressure in the Falcon 9's engine(s). Earliest possible retry is Tuesday (May 22).



Top Comments of the Week
Flash Poll
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
<b><a href=Betajet">

The Circle – The Future's Imperfect in the Present Tense
Betajet
5 comments
The Circle, a satirical, dystopian novel published in 2013 by San Francisco-based writer Dave Eggers, is about a large, very powerful technology company that combines aspects of Google, ...

Max Maxfield

Recommended Reads From the Engineer's Bookshelf
Max Maxfield
27 comments
I'm not sure if I read more than most folks or not, but I do I know that I spend quite a lot of time reading. I hate to be idle, so I always have a book or two somewhere about my person -- ...

Martin Rowe

Make This Engineering Museum a Reality
Martin Rowe
Post a comment
Vincent Valentine is a man on a mission. He wants to make the first house to ever have a telephone into a telephone museum. Without help, it may not happen.

Rich Quinnell

Making the Grade in Industrial Design
Rich Quinnell
16 comments
As every developer knows, there are the paper specifications for a product design, and then there are the real requirements. The paper specs are dry, bland, and rigidly numeric, making ...

Special Video Section
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...
TE Connectivity's clear-plastic, full-size model car shows ...
Why culture makes Linear Tech a winner.
Recently formed Architects of Modern Power consortium ...
Specially modified Corvette C7 Stingray responds to ex Indy ...
Avago’s ACPL-K30T is the first solid-state driver qualified ...
NXP launches its line of multi-gate, multifunction, ...
Doug Bailey, VP of marketing at Power Integrations, gives a ...
See how to ease software bring-up with DesignWare IP ...
DesignWare IP Prototyping Kits enable fast software ...
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...