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BATTLE OF THE COLOSSI: ROUND TWO SLS vs Falcon Heavy


In 2015, \'Battle of the Colossi\' (Ad Astra Fall Vol. 27, #3) looked forward to 2018 to discern which launcher-SLS or Falcon Heavy-would be the most successful, with a goal of objectively comparing both machines. Three years later and it is time for round two. The ground rules remain the same: comparison is based on the SpaceX website (www.spacex.com) and on NASA's \'Space Launch System Program Mission Planners Guide.\' This comparison does not consider a supposed lack of payloads for either system, the cost of launcher development, and possible schedule slippages or loss-of-mission accidents. Additionally, a clear differentiation is made between a comparison today and a different comparison three years in the future. In other words, the working rocket of today is not contrasted with a proposed vehicle. The Space Launch System (SLS Block 1) is designed to loft 70 metric tons via the reuse of Space Shuttle and Constellation technology. However, the recently released FY 2019 NASA budget states \'current estimates of lift capability to LEO are at 85 metric tons.\' SLS uses two extended five-segment Solid Rocket Boosters (SRBs) that are very similar to the Space Shuttle's SRBs, and a central core stage based around the same liquid oxygen/liquid hydrogen engines that powered the Space Shuttle. The second stage is the only non-shuttle technology in evidence, and it is a modestly modified version of the proven Delta IV upper stage, featuring one rocket engine that burns liquid oxygen/liquid hydrogen.......

【作者名称】: Dale L. Skran
【关 键 词】: BATTLE OF THE COLOSSI: ROUND TWO SLS vs Falcon Heavy
【期刊名称】: Ad Astra
【期刊论文数据库】: [DBS_Articles_01]
【期刊论文编号】: 108,161,741
【摘要长度】: 1,519
【上篇论文】: 外文期刊 - HUD et vision combinée sur le Challenger 350
【下篇论文】: 外文期刊 - Clustering Data Association Using Data Relevance in Spatial Domain for Doppler-Only RSN Localization

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