Lesson plan

Pyrios

Pyrios is an advanced Liquid rocket booster concept proposed in 2012 by Dynetics for use on NASA's Space Launch System heavy-lift launch vehicle. Pyrios was intended to use the RP-1/LOX F-1B, a modernized version of the F-1A engine built by Aerojet Rocketdyne. Developed during the later stages of the Apollo program, the F-1A was test-fired but never flew. Several were created and stored by Rocketdyne. The company has also maintained an F-1/F-1A knowledge retention program for its engineers for the entire period the engine has been mothballed. Dynetics is now performing tests on engine components pulled from storage. Pyrios was intended to use the same attachment points as the five-segment SRBs The name is derived from Greek mythology. Pyrois was a horse that pulled sun god Helios’ chariot.

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Article summary

Pyrios is an advanced Liquid rocket booster concept proposed in 2012 by Dynetics for use on NASA's Space Launch System heavy-lift launch vehicle. Pyrios was intended to use the RP-1/LOX F-1B, a modernized version of the F-1A engine built by Aerojet Rocketdyne. Developed during the later stages of the Apollo program, the F-1A was test-fired but never flew. Several were created and stored by Rocketdyne. The company has also maintained an F-1/F-1A knowledge retention program for its engineers for the entire period the engine has been mothballed. Dynetics is now performing tests on engine components pulled from storage. Pyrios was intended to use the same attachment points as the five-segment SRBs The name is derived from Greek mythology. Pyrois was a horse that pulled sun god Helios’ chariot.

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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