gary
24-10-2013, 10:48 AM
A colleague has brought to my attention a short article on CNN which reports that
the USS Forrestal, a US Navy aircraft carrier that was decommissioned in 1993,
has been sold for scrap for one penny.
Photo and article here -
http://edition.cnn.com/2013/10/23/us/gallery/uss-forrestal/index.html?hpt=hp_c3
The USS Forrestal was instantly familiar to me as it is famous for a terrible
fire in 1967, the root cause of which was electromagnetic fields from the ship's
RADAR penetrating an improperly mounted shielded connector, producing RF
voltages in the arming mechanism of a Zuni rocket attached to the wing of
an F-4 Phantom fighter aircraft. The rocket fired across the deck into a fully
fueled A-4 Skyhawk loaded with bombs and rockets.
With aircraft packed in wing-tip to wing-tip, a chain reaction eschewed which
engulfed half the deck.
The incident features in a standard electrical engineering text on grounding
and showcases the importance of providing electromagnetic comparability (EMC)
in these environments with best practice grounding and bonding.
This 1973 motivational film produced by the US Navy for navy personnel provides
both a harrowing and inspirational account of the heroic efforts by the crew to
save their ship (highly recommended viewing).
Trial by Fire: A Carrier Fights For Life -
https://www.youtube.com/watch?v=U6NnfRT_OZA
the USS Forrestal, a US Navy aircraft carrier that was decommissioned in 1993,
has been sold for scrap for one penny.
Photo and article here -
http://edition.cnn.com/2013/10/23/us/gallery/uss-forrestal/index.html?hpt=hp_c3
The USS Forrestal was instantly familiar to me as it is famous for a terrible
fire in 1967, the root cause of which was electromagnetic fields from the ship's
RADAR penetrating an improperly mounted shielded connector, producing RF
voltages in the arming mechanism of a Zuni rocket attached to the wing of
an F-4 Phantom fighter aircraft. The rocket fired across the deck into a fully
fueled A-4 Skyhawk loaded with bombs and rockets.
With aircraft packed in wing-tip to wing-tip, a chain reaction eschewed which
engulfed half the deck.
The incident features in a standard electrical engineering text on grounding
and showcases the importance of providing electromagnetic comparability (EMC)
in these environments with best practice grounding and bonding.
This 1973 motivational film produced by the US Navy for navy personnel provides
both a harrowing and inspirational account of the heroic efforts by the crew to
save their ship (highly recommended viewing).
Trial by Fire: A Carrier Fights For Life -
https://www.youtube.com/watch?v=U6NnfRT_OZA