Join the Unexplained Mysteries community today! It's free and setting up an account only takes a moment.
- Sign In or Create Account -
Sign in to follow this  
Followers 1
Waspie_Dwarf

SpaceX Launches Falcon 9/Dragon

29 posts in this topic

Dragon Completes Today's Demonstration Objectivest

Thu, 24 May 2012 12:34:45 AM GMT+0100

The SpaceX Dragon capsule, visible through International Space Station’s cameras, passed directly below the orbiting complex at a distance of 2.5 km at 7:24 a.m. EDT, fulfilling all demonstration objectives for the day. A final height adjustment burn to depart the vicinity of the space station will occur at 7:57 a.m., at which point Dragon begins its “racetrack” trajectory to re-approach the station for grapple and berthing attempts on Friday.

arrow3.gifSource

Share this post


Link to post
Share on other sites

Ok but this is the basic capsule design and rocket that will carry astronauts in a future mission.

Yes, but the capsule will need a lot of modifications.

The current Dragon is designed for a 30 day stay at the ISS. The manned version (known as the DragonRider) will be designed for 180 day stays, with a requirement that it should be able to stay docked for 210 days in case of emergencies.

Dragon currently has no life support system or launch escape system (LES) both of which will be needed by DragonRider.

DragonRider will employ a novel LES. Instead of a launch escape tower as currently used by Soyuz and Shenzhou (and previously by Mercury and Apollo) which use rockets in a tower above the capsule to pull it free in a launch abort, DragonRider will use rockets mounted at the base of the capsule to push it free. DragonRider's system, using 8 "SuperDraco" engines has several advantages over a tower system. The tower has to separated several minutes into the flight. This in itself presents a potential problem. Once the tower has been ejected that particular option for escape is no longer available. The SuperDracos are not ejected and thus that LES option remains all the way to orbit. As the SuperDracos are returned to Earth it is a reusable system.

Later versions of the DragonRider will use the SuperDracos as landing engines, the capsule will be able to make a precision touch down on dry land, doing away with the costly sea recovery. Parachutes will only be used in an emergency.

There is also a third version of the Dragon. This is a free flying, unmanned version which will not make visits to the ISS. It is called DragonLab and will be able to stay in orbit for upto two years. Currently there are 2 missions booked for this version, in 2013 and 2014.

Share this post


Link to post
Share on other sites
Dragon Begins Trajectory to Re-Approach Station Friday

Thu, 24 May 2012 01:22:26 PM GMT+0100

SpaceX completed a final height adjustment burn of the Dragon capsule at 8:09 a.m. EDT to depart the vicinity of the International Space Station. Dragon now begins its “racetrack” trajectory to re-approach the station for grapple and berthing attempts on Friday. A news briefing on today’s successful demonstration mission milestones will air live on NASA TV from the Johnson Space Center at 10 a.m.: www.nasa.gov/ntv

arrow3.gifSource

Share this post


Link to post
Share on other sites

NASA has now released some photos of the Dragon taken from the ISS during today's fly past. I have posted them on UMs image gallery. They can be found HERE, HERE, HERE and HERE

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 1

  • Recently Browsing   0 members

    No registered users viewing this page.