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Encyclopedia > Launchpad

A launch pad is designed and built to meet a launch vehicle's special needs and requirements. For example:


Most cryogenic launch vehicles need to be continuously topped off as scheduled liftoff approaches. This is particularly necessary as various holds are placed on the liftoff and then removed as support personnel correct problems or verify they are not serious. Without the ability to top off the launch vehicle, the launch would have to be scrubbed when problems slowed down the countdown. Gantrys are commonly designed and constructed on launch pads to meet these types of servicing requirements both during launch and in the preparation period leading up to it.


Most rockets need stable support for a few seconds after ignition while the engines ramp up and stabilize at full thrust. This stability requirement is commonly met by use of exploding bolts to connect the launch vehicle to the pad. When the vehicle is stable and ready to fly the bolts are exploded, this severes the vehicle's ties to the launch pad and structures on the ground.


  Results from FactBites:
 
Launchpad McQuack - Wikipedia, the free encyclopedia (1037 words)
In the episode "Launchpad's Civil War", it is learned he is of direct lineage to the (in)famous American Civil War General Rhubarb McQuack, who Launchpad, for much of his life, believed to have been the hero of the Battle of Duckridge.
But Launchpad was written weakly in these stories, to the point that one reader wrote that in them, "the pilot resembles a weak carbon copy of Donald rather than a character in his own right." In the same comic book, however, a more characteristic Launchpad starred in stories written and illustrated by William Van Horn.
Launchpad remained a regular player in Darkwing's life in the animated series as well as the comic stories based on the series, most of which were published in Disney Adventures.
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