SpaceX Delays Maiden Flight of Falcon 1 Rocket

November 27, 2005
Falcon 1 Rocket

Space Exploration Corp. (SpaceX) launch scrubbed Saturday because of problems with liquid oxygen (LOX) fill tank. The reason for the delay was that an auxiliary liquid oxygen fill tank had a manual vent valve incorrectly set to vent. The time it took to correct the problem resulted in significant LOX boiloff and loss of helium, and it was the latter that caused the launch abort.

Although SpaceX engineers were eventually able to refill the vehicle LOX tanks, the rate at which they could add helium was slower than the rate at which LOX was boiling away. There was no way to close the gap, so the launch had to be called off. In addition, SpaceX experienced an anomaly with the main engine computer that requires further investigation and was arguably reason in and of itself to postpone launch.

It will be a minimum of one or two weeks before the company can try again.

SpaceX developed its partially reusable Falcon 1 rocket as a low-cost alternative in a space launch industry dominated by aerospace giants Boeing Co. and Lockheed Martin Corp.

Designed from the ground up by SpaceX, Falcon 1 is a two stage rocket powered by liquid oxygen and purified, rocket grade kerosene. The Falcon 1 launch will make history for several reasons:

-- It will be the first privately developed, liquid fueled rocket to reach orbit and the world's first all new orbital rocket in over a decade.
-- The main engine of Falcon 1 (Merlin) will be the first all new American hydrocarbon booster engine to be flown in forty years and only the second new American booster engine of any kind in twenty-five years.
-- The Falcon 1 is the only rocket flying 21 st century avionics, which require a small fraction of the power and mass of other systems.
-- It will be the world's only semi-reusable orbital rocket apart from the Shuttle (all other launch vehicles are completely expendable).
-- Most importantly, Falcon 1, priced at $6.7 million, will provide the lowest cost per flight to orbit of any launch vehicle in the world, despite receiving a design reliability rating equivalent to that of the best launch vehicles currently flying in the United States.

The maiden flight will take place from the Kwajalein Atoll of the Marshall Islands. The customer for this mission is DARPA and the Air Force and the payload will be FalconSat-2, part of the Air Force Academy’s satellite program that will measure space plasma phenomena, which can adversely affect space-based communications, including GPS and other civil and military communications. The target orbit is 400 km X 500 km (just above the International Space Station) at an inclination of 39 degrees.

Source: Space Exploration Corp.

4.9 /5 (8 votes)  

Rank 4.9 /5 (8 votes)
Tags

Relevant PhysicsForums posts

More news stories

Europe stakes billion-dollar bet on new rocket

A pencil-slim rocket is scheduled to lift into space from South America on Monday, carrying a billion-dollar bet that Europe can grab a juicy slice of the market to place satellites in low orbit.

Space & Earth / Space Exploration

created 1 hour ago | popularity 3.5 / 5 (2) | comments 0

NASA sees wide-eyed cyclone Jasmine

Cyclone Jasmine's eye has opened wider on NASA satellite imagery, as it moves through the Southern Pacific Ocean.

Space & Earth / Earth Sciences

created 17 hours ago | popularity 3.5 / 5 (2) | comments 2

NASA sees Giovanna reach cyclone strength, threaten Madagascar

Tropical Storm 12S built up steam and became a cyclone on February 10, 2012 as NASA's Terra satellite passed overhead. Residents of east-central Madagascar should prepare for this cyclone to make landfall ...

Space & Earth / Earth Sciences

created 17 hours ago | popularity not rated yet | comments 0

Humans may have helped the decline of African rainforests 3000 years ago

(PhysOrg.com) -- Large areas of rainforests in Central Africa mysteriously disappeared over three thousand years ago, to be replaced by savannas. The prevailing theory has been that the cause was a change ...

Space & Earth / Environment

created Feb 10, 2012 | popularity 4.3 / 5 (13) | comments 14 | with audio podcast report

Political leaders play key role in how worried Americans are by climate change: study

More than extreme weather events and the work of scientists, it is national political leaders who influence how much Americans worry about the threat of climate change, new research finds.

Space & Earth / Environment

created Feb 06, 2012 | popularity 5 / 5 (6) | comments 68


Walney offshore wind farm is world's biggest (for now)

(PhysOrg.com) -- The Walney wind farm on the Irish Sea--characterized by high tides, waves and windy weather--officially opened this week. The farm is treated in the press as a very big deal as the Walney ...

GPS court ruling leaves US phone tracking unclear

A US Supreme Court decision requiring a warrant to place a GPS device on the car of a criminal suspect leaves unresolved the bigger issue of police tracking using mobile phones, legal experts say.

Study finds that anti-diabetic medication can prevent the long-term effects of maternal obesity

In a study to be presented today at the Society for Maternal-Fetal Medicine's annual meeting, The Pregnancy Meeting, in Dallas, Texas, researchers will report findings that show that short therapy with the anti-diabetic medication ...

Netflix settlement trims 14 pct off 4Q earnings

(AP) -- Netflix pressed the rewind button on its fourth-quarter earnings after settling allegations that the video subscription service violated a consumer-privacy law.

Anonymous briefly knocks CIA website offline (Update 2)

The website of the Central Intelligence Agency was briefly inaccessible on Friday after the hacker group Anonymous claimed to have knocked it offline.

Amateur football players not always keen on returning to play after ACL injuries

Despite the known success rates of reconstructive Anterior Cruciate Ligament (ACL) surgery, the number of high school and collegiate football players returning to play may not be as high as anticipated, say researchers presenting ...