/Which Will Be First to Space – the SpaceX Starship or the SLS?

Which Will Be First to Space – the SpaceX Starship or the SLS?

Futurizonte Editor’s Note: Regardless of which company will be the first on space, a private starship will soon travel to space.

SpaceX is talking with three companies about the first commercial launch of the fully reusable Super Heavy Starship with a 2021 target date.

United Launch Alliance and NASA have been working on the Space Launch System since 2011. There was also the Constellation rocket program from 2005 to 2011. SLS and Constellation were trying to re-use Space Shuttle booster technology. However, despite spending over $20 billion (not including another $10 billion for the Orion capsule) there has not been a successful test or a live mission with SLS. NASA is still talking about a first mission with SLS in 2020 but the government Accountability Office has report which indicates that we would be lucky if SLS can launch in 2021.

The first flight test of the SLS will feature a configuration for a 70-metric-ton (77-ton) lift capacity and carry an uncrewed Orion spacecraft beyond low-Earth orbit to test the performance of the integrated system.

The SpaceX Falcon Heavy can carry 63.8 metric tons (70-tons) to low earth orbit. The Falcon Heavy has flow three times and has 90% of the lift capacity of the version of the SLS.

In December 2018, nine months after starting construction of some parts of the first test article carbon composite Starship low-altitude test vehicle, SpaceX CEO Musk announced a “counterintuitive new design approach” would be taken by the company. SpaceX switched to a stainless steel alloy which is very heat resistant.

A Starhopper has been built from a 300-series stainless steel. The high melting point of 300-series still would mean the leeward side of Starship would need no insulation during reentry, while the much hotter windward side would be cooled by allowing fuel or water to bleed through micropores in a double-wall stainless steel skin, removing heat by evaporation.

READ the complete original article at Nextbigfuture.com