Feeds

US manned spaceflight after Shuttle could be delayed

Not so solid crew module launcher

The smart choice: opportunity from uncertainty

The planned Ares I rocket - which will be the USA's only way of putting people into space after the Shuttle retires in 2010 - faces "significant threats" to its performance, according to an internal NASA document. The problems have already led to significant delays.

Artist's pic of the Ares I first stage

Fuel's solid: design not so much?

The Ares I first stage is a modified version of the solid-fuelled boosters mounted either side of the Shuttle's external fuel tank, and apparently it is here that the problems lie. The solid booster must lift the second stage - a liquid-fuelled rocket based on the J-2 design used in the 1960s Apollo moonshot programme - plus the crew module and its abort bailout system.

NASA says that the Ares I stack will be able to lift 25 tons into earth orbit. However, there have been rumours that the first-stage modifications - which involve adding an extra segment and structural strengthening - have cut into the weight allowance for the crew and service modules.

Now Flight International reports that an internal NASA circular says that "there are significant threats to the performance" of the Ares I. It seems that a preliminary design review of the first stage has now slipped six months behind schedule.

NASA says that there will be a four-year hiatus in manned US spaceflight between the Shuttles retiring and Ares I coming online. "Crew transportation to the International Space Station is planned to begin no later than 2014," according to the agency.

"The first lunar excursion is scheduled for the 2020 timeframe."

The return to the Moon will call for more complex missions in which Ares V unmanned heavy lift rockets will fire cargo and modules into orbit. These payloads will then be assembled into ships which can carry Ares I-lifted astronauts to the lunar surface - and then, according to plans, on to Mars.

However, it would appear that the timetable is already beginning to slip. The Flight piece is here. ®

Eight steps to building an HP BladeSystem

More from The Register

next story
Malaysian Airlines flight MH17 claimed lives of HIV/AIDS cure scientists
Researchers, advocates, health workers among those on shot-down plane
Forty-five years ago: FOOTPRINTS FOUND ON MOON
NASA won't be back any time soon, sadly
Mwa-ha-ha-ha! Eccentric billionaire Musk gets his PRIVATE SPACEPORT
In the Lone Star State, perhaps appropriately enough
MARS NEEDS OCEANS to support life - and so do exoplanets
Just being in the Goldilocks zone doesn't mean there'll be anyone to eat the porridge
The Sun took a day off last week and made NO sunspots
Someone needs to get that lazy star cooking again before things get cold around here
Diary note: Pluto's close-up is a year from … now!
New Horizons is less than a year from the dwarf planet
Boffins discuss AI space program at hush-hush IARPA confab
IBM, MIT, plenty of others invited to fill Uncle Sam's spy toolchest, but where's Google?
prev story

Whitepapers

Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Build a business case: developing custom apps
Learn how to maximize the value of custom applications by accelerating and simplifying their development.
Consolidation: the foundation for IT and business transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.