Hold Down

But whatever the means chosen to hold-down demand for US immigration, the regulations will need to be enforced impartially (as seems obvious to me). ❋ Unknown (2009)

They regularly do hold-down firings of full stages and full flight vehicles. ❋ Unknown (2008)

I thought many things that hot summer morning of 40 years ago, standing at the then – Cape Kennedy press site, staring at the Apollo Saturn vehicle some 3 miles distant, listening to the quasi-Gregorian countdown chant of "minus 10 seconds, 9, 8 …" until, finally, the powerful first-stage rocket engines had built up enough thrust to pop open the big rocket's hold-down clamps and it began rising slowly, ponderously, into the blue sky. ❋ Unknown (2009)

But make no mistake: This hold-down of retail prices is a subsidy to energy consumers that is hidden in the government's budget. ❋ Unknown (2008)

Every one of us rookies in that room, regardless of age or title, were classless peons and we would remain so until that glorious day when the hold-down bolts were blown and our ride began. ❋ Astronaut Mike Mullane (2006)

Another shuttle near miss occurred on STS-112 when a circuit failure resulted in only one set of the hold-down bolt initiators firing at liftoff. ❋ Astronaut Mike Mullane (2006)

When she was once again vertical, the SRB and hold-down bolt fire commands were issued. ❋ Astronaut Mike Mullane (2006)

In reality no astronaut has ever screamed, “For God and Country!” when the hold-down bolts blew…at least not on their rookie mission. ❋ Astronaut Mike Mullane (2006)

Until the hold-down bolts blew there were no guarantees, I told myself. ❋ Astronaut Mike Mullane (2006)

Had the redundant initiators in the hold-down bolts not fired,Atlantis would have been still anchored to the pad at SRB ignition. ❋ Astronaut Mike Mullane (2006)

As the hold-down bolts were blown, we were slapped with a combined thrust of more than 7 million pounds. ❋ Astronaut Mike Mullane (2006)

Guy and Shep had earned their wings as we all had…at the instant the hold-down bolts had blown. ❋ Astronaut Mike Mullane (2006)

The 4½-million-pound mass was held in place by eight hold-down bolts, four at each SRB skirt. ❋ Astronaut Mike Mullane (2006)

Generating more than 6 million pounds of thrust, they certainly had the muscle to rip out the hold-down bolts and destroy the vehicle in the process. ❋ Astronaut Mike Mullane (2006)

In the launch sequence the hold-down bolts are exploded apart just milliseconds prior to SRB ignition so the rocket is completely free of the ground when the boosters ignite. ❋ Astronaut Mike Mullane (2006)

Shadows waved across our seats asDiscovery rocked back and forth on her hold-down bolts. ❋ Astronaut Mike Mullane (2006)