I am all in favor of being prepared, but this one makes me scratch my head.
For all the good intentions of a survival/signal mirror and their capabilities, I recall an article (have to try and find it) that stated there are no documented cases of anyone being rescued as the result of someone signaling with a mirror.
Is anyone aware of one?
It does not mean you would not be the first.
Goodness, yes - I have many detailed documented cases of people being rescued as the result of someone signaling with a mirror. (I collect them, as it happens.)
Either you recall the article incorrectly or the author was arrogant in their ignorance. I suspect the former. Perhaps you were thinking of a quote like this one from the April 1996 issue of Backpacker magazine, page 120: "I can't remember anyone ever having been rescued using a mirror.
The sun and your skill have to be just right.", attributed to George Montopoli, a summer climbing ranger in Grand Teton National Park, Wyoming. (3rd column, halfway down, here:
http://books.google.com/books?id=gN4DAAAAMBAJ&pg=PA120 ),
which is a much milder statement. (By the way, while skill is definitely required, a mirror with a retroreflective aimer makes it a lot easier than otherwise.)
There's a reason why emergency signal mirrors are required to be carried by US military pilots, US Coast Guard personnel, and on liferafts on oceangoing vessels worldwide.
Here are a few detailed recent cases:
August 2009: Two hikers in Colorado
http://www.denverpost.com/headlines/ci_13044496April 2007: Arizona hiker (whose satellite phone died)
http://www.azcentral.com/community/scottsdale/articles/0419hiker0419-ON.html(reported in ) 2007:
http://books.google.com/books?id=GiH84xi...aph&f=falseMay 2005: Three boaters rescued.
http://www.sailingbreezes.com/Sailing_Breezes_Current/articles/June05/quickthinking.htmMay 1999: Five boaters rescued.
http://www.beachbrowser.com/Archives/Local-News/June-99/AC-130H-crew-assists-stranded-boaters.htmFor larger statistics:
In the post-war analysis of military survival in
the Pacific, "Airmen Against the Sea - An Analysis of
Sea Survival Experiences", by George Albert Llano,
Research and Editorial Specialist, Arctic, Desert,
Tropic Information Center, Maxwell Air Force Base,
Alabama:
Table 4 on page 42
gives "Mirror Flashes" as the means by which rescuers
spotted survivors in 20 out of 136 incidents recorded by
the 13th Emergency Group for one quarter of 1944.
http://babel.hathitrust.org/cgi/pt?id=uc1.31822011730850;q1=mirror%20dumbo;start=1;size=100;page=root;view=image;seq=54;num=42
Given that mirrors were the means of spotting survivors
in 20 cases for a single rescue group in a single quarter-year
in World War II, you can bet there were a lot more.
Here's an extremely well documented case: the rescue of
Radioman Tweed from Guam on July 10, 1944.
The Smithsonian sent me the transcript from when Tweed went on CBS radio ca. 2:20 PM EST on August 26, 1944 and said: "if it were not for an ordinary mirror, just like women carry in their pocket books, I would not be here at all."
In Tweed's book, "Robinson Crusoe, USN", on page 239,
he describes how he successfully signaled the American destroyer with a 3 inch mirror after he had tried (page 234) for a week, 6 to seven times a day, for twenty minutes at
a time, to get their attention with signal flags.
And if anyone doubt's Tweed's account, here's the
U.S. Navy's description from
http://www.history.navy.mil/danfs/m7/mccall-ii.htm"They then steamed back to the Marianas where McCall, with Gridley, took up patrol off Guam, 10 July. At 1820 on the 10th, McCall’s crew observed a heliograph [signal mirror - RAF] from a cliff south of Uruno Point. Identifying the operator as friendly, a motor whaleboat, manned by a volunteer landing party, was dispatched to effect the rescue of the message sender. In spite of being within range of 6‑inch coastal batteries, the rescue was accomplished and G. R. Tweed, RM1c, USN, having been on Guam since 1939 and in hiding since the Japanese occupation, was brought on board."
That account is also given here:
http://books.google.com/books?id=r1eYvln...;q=&f=falseIn summary, per this US Coast Guard Auxiliary public service article:
http://www.auxguidanceskills.info/press/PFDequip.html"... the first item we recommend you attaching to your PFD is a signal mirror. Either purchase a PFD with a pocket, or sew a pocket on, and place the mirror in your pocket. Make sure you tie the lanyard that attaches to mirror to another part of your PFD. This way, if you take out your mirror to use, and drop it, you won’t loose it!"