West Point has a Hypersonic Rocket Team called SPEAR. They flew a 4" to 3" sub minimum diameter two stage at FAR on May 1st and recovered the sustainer successfully. IDK but I suspect the booster was expendable. Sustainer apparently just exceeded Mach 5 and inertial data indicates ~84km distance traveled. I'm looking forward to more data on this project, they've already shared more than the USAFA boosted dart team from around a decade ago.
Discussion of rocketry events/launches and current news
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