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ibusinesslines.com October 23, 2018


Improved Block 5 Falcon 9 rocket debuts

16 May 2018, 12:32 | Jodi Jackson

Improved Block 5 Falcon 9 rocket debuts

Improved Block 5 Falcon 9 rocket debuts

"I hope fate does not penalize me for these words, however that is unquestionably the intent. And I believe our conservative clients would concur with this".

Along with larger reusability, SpaceX's Block 5 Falcon 9 is made to fulfill NASA commercial team demands and Air Force national safety launching standards. SpaceX blamed "a basic ground system auto abort" for stopping the countdown 58 seconds prior to liftoff.

The COPVs were implicated in the rocket's pre-launch explosion in September 2016, when a Falcon 9 exploded during preparations for a static fire test, destroying the payload and severely damaging the launch pad.

SpaceX found the cause to liquid oxygen in the upper stage tank that got entrapped between the COPV overwrap and liner and ignited either from resistance or other mechanisms. That's how the company intends to shave launch costs. "It's nuts. I've personally gone over the design; I can't count how many times". The leading engineering minds at SpaceX have actually struggled over this ... "I believe we're in a fantastic situation".

"The term "block" is a little odd. We kind of adopted it from the Russians", he said.

Musk said the all those nine Merlin motors used to power the Falcon 9's first phase finally have an 8% boost in thrust at sea level into 190,000 pounds-force.

The Block 4 Merlin 1D engines featured constant chamber pressure.


Although the ability to carry out two orbital launches with the same Block 5 Falcon 9 is within reach for SpaceX, Elon Musk has stressed that the process will be far from easy.

The single vacuum-optimized Merlin engine on Falcon 9's second stage has a 5 percent thrust increase to 220,000 pounds-force, he said. The first step the latest version allows for ten or more launches. "Ironically, we need to take it apart to confirm that it does not need to be taken apart", Musk told reporters on a call before the flight. "The secret to Block 5 is the fact that it is meant to perform 10 or more flights without a refurbishment between every flight. The only thing that has to alter is to refill propellant and fly once again".

Indeed, the Block 5 first stage is created to fly 10 times with just inspections between landing and liftoff, and perhaps 100 times or more with some maintenance work involved, Musk said.

While the first Block 5 Falcon 9 launch was a major event in and of itself, it was also responsible for carrying the first satellite for the government of Bangladesh - Bangabandhu Satellite-1 - into orbit.

Musk stated the Falcon 9's octaweb structure, utilized to support all 9 first stage engines and offer compartmentalization in case several stops working, is now much more powerful. It then landed safely on the "Of Course I Still Love You" drone ship stationed in the Atlantic Ocean.

"Obviously, aesthetics are a minor factor in rocket design, but I still like the fact that we've returned for nostalgic reasons to having a black interstage", Musk said.



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