We have not updated this for a while though it remains on almost everyone's mind here in Chile: the progress on the rescue of the 33 trapped miners. El Mercurio and the other media are keeping up to date but not everyone reads enough Spanish to follow the details.
AP and Fox News in the US have been doing a decent job at translating the reports from Chile. Fox published a summary yesterday:
http://www.foxnews.com/world/2010/09/25 ... ly-august/Of particular interest here is the description and photo of the first of the three rescue cages. The brother of one of the miners is shown inside one of these cages in a photo op.
Quoting from the article:
The capsule is nearly 10 feet tall on the outside. Inside, the space is 6¼ feet high and about 21 inches across.
The bottom of the capsule holds three tanks of compressed air — 40 percent oxygen and 60 percent nitrogen, Health Minister Jaime Manalich said. He said that was enough for about 90 minutes of breathing, more than the 15 to 20 minutes that the journey to the surface is expected to take.
A microphone inside will allow each miner to stay in touch with those inside and outside the mine while being pulled up, Manalich said.
He added that in an emergency, such as the capsule getting jammed in the rescue hole, the bottom can be opened with levers inside so the miner can be lowered back down by cable.Edit: CNN also has an article and other foto
http://www.cnn.com/2010/WORLD/americas/ ... tml?hpt=T2------------------------
Meanwhile there are three drilling plans in operation.
Plan B (Schramm T 130 platform) had a setback yesterday from a broken part and is back on line. It has done 192 of the required 620 metres with the full size bore hole needed to use the rescue cage.
Plan A (the Raise Borer rig) which has to penetrate 703 metres to reach the miners' refuge, has reached 465 metros at the pilot hole diametre only. It will then need to enlarge the pilot hole.
Plan C is the oil drill rig "RIG 421" which is being used to reach a shallower point in the mine, at a point along the access ramp at a depth of 597 metres. As of yesterday that rig has completed 78 metres at the full required rescue cage diametre.
Saludos