My sister alerted me to a "very sweet piece" on NPR's Marketplace Morning Report that involved model rocketry. Here is the
with the podcast. It's the 03 May 2021 and the Vanishing America segment starts at about 4:35 in.
Did I hear the host say that he launched a "2-stage version of the Explorer Aquarius on a D-21"? Implying that he didn't light both stages, and further implying that he modified the build for that stage.
I've listened to this guy for years and wouldn't have guessed him as a rocketeer. I guess they really do walk among us.
A 2-stage Explorer Aquarius would sure be awesome. I've never built the regular model, so I don't know the motor mount size....could it have flown on a D12? Maybe the host was reading the copy and just transposed the numbers by accident.