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发帖数: 29576 | 1 本月发射的F9火箭一级计划海上平台回收。
SpaceX’s next launch is set for Dec. 16 from Cape Canaveral with an
unmanned Dragon cargo ship carrying more than 3,700 pounds of supplies and
experiments for the International Space Station.
After releasing the rocket’s upper stage to propel the Dragon supply ship
into orbit, the lower part of the booster will fire a subset of its nine
engines for a re-entry burn to guide it toward a designated landing zone in
the Atlantic Ocean northeast of Cape Canaveral.
The rocket will deploy the four grid fins in an “X-wing” configuration
during re-entry, Musk tweeted. He said each fin has the ability to be
independently actuated for pitch, yaw and roll control, and engineers added
the stabilizers after initially trying to control the descent with cold gas
nitrogen thrusters.
Elon Musk
Autonomous spaceport drone ship. Thrusters repurposed from deep sea oil rigs
hold position within 3m even in a storm.
3:59 PM - 22 Nov 2014
“We actually have a huge platform that’s being constructed at a shipyard
in Louisiana right now. Which is – well, it’s huge, huge-ish, it’s about
300 feet long by 170 feet wide.” |
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