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Old 05-20-2020, 06:13 PM
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tdracer tdracer is offline
Scale Modeler Extrodinare
Join Date: Feb 2018
Location: Everett, WA
Posts: 209

Originally Posted by 5x7
They always did, it was the bs and cs with1. What do the 20 year old D13s look like? Mine are swelling.

I flew my Estes RTF Saturn V on some 20+ year old D13W-4's last year. The propellant grains were swollen enough that I had to trim back the slot before they'd fit in the liner, but once I did they went together OK. I used First Fire Jr. igniters and they lit off OK (after a chuff or two) and the flights were fine (much better altitude than a C6-3)
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