John Grunsfeld and Andrew "Drew" Feustel performed the first EVA (spacewalk) to begin replacing components on Hubble. Here, John and Drew exit (egress) the airlock, Drew unbolts the Wide Field Planetary Camera-2 (WFC-2), then removes it from Hubble, just like pulling out a drawer, and is lowered down to the Shuttle's cargo bay with the camera in hand. The new WFC-3 is then installed......
***Unbolting the camera was not as easy as it looks....the bolt was tighter than expected, and Drew's torque wrench kept slipping. They decided to let him use his brute-strength to loosen the bolt. Depsite the risk of breaking the bolt and not being able to replace the camera, he was able to loosen it, then use the motorized socket to remove it....whew!!!!! Close one!!!!!
No comments:
Post a Comment