threelonmusketeers to [email protected]English • 2 months ago90 minutes until the maiden launch of Ariane 6message-square5arrow-up146arrow-down12file-text
arrow-up144arrow-down1message-square90 minutes until the maiden launch of Ariane 6threelonmusketeers to [email protected]English • 2 months agomessage-square5file-text
Launch window opens at: 2024-07-09 19:00 UTC Launch thread has been posted over at [email protected]: Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)
minus-square@Ghystelink3•2 months agoThey fire the engines several seconds before T-0 and it’s ready to jump off the pad at full thrust as soon as the clamps release. Soyuz does the same. Also solid fuel boosters don’t know any word other than GO once lit.
minus-square@[email protected]linkfedilink2•2 months agoDid they change their procedure? AFAIK Ariane 5 had their ignition on zero (in contrast to US launches who famously had their liftoff at zero)…
minus-square@Ghystelink2•2 months agoMain engine start begins at T-4 and it’s spooled up by T-2. The boosters light right at T-0 since they’re immediately at full thrust which may be what you’re seeing.
They fire the engines several seconds before T-0 and it’s ready to jump off the pad at full thrust as soon as the clamps release. Soyuz does the same.
Also solid fuel boosters don’t know any word other than GO once lit.
Did they change their procedure? AFAIK Ariane 5 had their ignition on zero (in contrast to US launches who famously had their liftoff at zero)…
Main engine start begins at T-4 and it’s spooled up by T-2. The boosters light right at T-0 since they’re immediately at full thrust which may be what you’re seeing.