- SpaceX 総合スレ Part11
835 ：名無しさん＠お腹いっぱい。[]：2019/12/06(金) 10:54:17.52 ID:EX+41CIC - >>833
https://spacenews.com/falcon-9-launches-dragon-cargo-spacecraft-to-iss-2/
後日SpaceNewsがもうすこしくわしい情報上げてたわ
熱実証実験が行われてたそうな。さすがにどこの顧客までは情報解禁せえへんよな・・・
Unlike many recent Dragon cargo launches, where the Falcon 9 first stage makes a landing back at Cape Canaveral,
the Falcon 9 for this mission landed on a SpaceX droneship in the Atlantic east of Jacksonville, Florida. Jessica Jensen,
director of Dragon mission management at SpaceX, said the droneship landing was because of plans to use the rocket’s
second stage for a “thermal demonstration” experiment after deploying the Dragon spacecraft.
“It’s going to be a long six-hour coast that then results in a disposal burn,” she said at a Dec. 3 press conference.
“We need extra performance for that demonstration, so basically what we have to do is burn the first stage for a longer
period of time so the second stage can have its performance reserved for that demo.” That, in turn, limited the ability of
the first stage to return to Cape Canaveral, requiring the droneship landing.
Jensen said that demonstration was for “some of our other customers for longer demonstration missions that we’re going
to have to fly in the future.” She didn’t identify those customers, but some national security missions, such as those that
place payloads directly into geostationary orbit, do require long coast periods.
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