Week 25: Capstone: Safety Is the Mission

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Twenty-four weeks ago, we started with a 13th-century weapon. Today we close the loop — not with new math, but by making sure everything we've learned stays grounded in the one thing that matters most every single time we launch: safety.

History

Take a moment to trace the whole arc: gunpowder in 9th-century China, war rockets, Tsiolkovsky's theory, Goddard's first flight, the V-2, the space race, Apollo, the Shuttle, and today's reusable boosters. Every week built on the one before it.

Forces

From Newton's third law in Week 1 to full flight-profile synthesis in Week 24, every force we've covered — thrust, drag, gravity, stability — has been in service of one goal: predicting and controlling where a rocket goes.

Math

As a comprehensive review, pick one of the flight-phase formulas from any earlier week and work it end-to-end for a rocket of your own choosing — a good exercise for checking how much of the series has really stuck.

Advances

From Congreve and Barrowman to von Braun, Korolev, Gagarin, and the modern commercial reusability era — rocketry has always advanced through people willing to test an idea nobody else had proven yet.

Key Date

For this final week, the class votes on its own choice: which date from the whole series felt like the most important turning point in rocketry's history?

Safety Note

This week closes with a full read-through and discussion of the current NAR Model Rocket Safety Code / High Power Rocketry Safety Code, plus a mock pre-flight checklist exercise — the same document and process every real launch depends on.