On 1/24/22 12:48, Henry Spencer wrote:
On Sun, 23 Jan 2022, James Fackert wrote:
the explosive bolts that held down shuttle solids to the pad until go time always scared me.... pretty hostile place for multiple pyro devices that must work every time. Flame, heat, massive acoustical energy and stress.
Explosive nuts, actually -- the bolts are a permanent part of the pad, the SRB bases fit over them, and the nuts tie everything together. For takeoff, the charges break the nuts.