Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

The Straight Story

(48,121 posts)
Sat May 18, 2013, 02:04 PM May 2013

Navy dolphins discover rare old torpedo off Coronado

SAN DIEGO — In the ocean off Coronado, a Navy team has discovered a relic worthy of display in a military museum: a torpedo of the kind deployed in the late 19th century, considered a technological marvel in its day.

But don't look for the primary discoverers to get a promotion or an invitation to meet the admirals at the Pentagon — although they might get an extra fish for dinner or maybe a pat on the snout.

The so-called Howell torpedo was discovered by bottlenose dolphins being trained by the Navy to find undersea objects, including mines, that not even billion-dollar technology can detect.

"Dolphins naturally possess the most sophisticated sonar known to man," Braden Duryee, an official at the Space and Naval Warfare Systems Center Pacific said after the surprising discovery.

While not as well known as the Gatling gun and the Sherman tank, the Howell torpedo was hailed as a breakthrough when the U.S. was in heavy competition for dominance on the high seas. It was the first torpedo that could truly follow a track without leaving a wake and then smash a target, according to Navy officials.

http://www.latimes.com/news/local/la-me-torpedo-dolphins-20130518,0,7621822.story




3 replies = new reply since forum marked as read
Highlight: NoneDon't highlight anything 5 newestHighlight 5 most recent replies
Navy dolphins discover rare old torpedo off Coronado (Original Post) The Straight Story May 2013 OP
Very Cool! zappaman May 2013 #1
It was powered and kept on a straight course by a 132 pound flywheel... hunter May 2013 #2
132 pound flywheel at 10,000 RPM inside a 14.2" diameter brass shell.... bvar22 May 2013 #3

bvar22

(39,909 posts)
3. 132 pound flywheel at 10,000 RPM inside a 14.2" diameter brass shell....
Sat May 18, 2013, 02:56 PM
May 2013

How in the world did they do THAT?

The total weight was 580 pounds.
Variable pitch propellers??!! 25 knots??!!... in 1870?

Whoever engineered this was a genius.


Usage:
Anti-surface ship

Propulsion:
132-lb flywheel spun to 10,000 rpm

Speed:
25 knots

Range:
400 yards

Length:
11 feet

Diameter:
14.2 inches


Weight:
580 pounds

Explosive Charge:
100 pounds wet guncotton




Primarily the work of LCDR J. A. Howell, the Howell torpedo was developed between 1870 and 1889. It required preparation prior to firing by spinning the flywheel for mobile power. If the torpedo was prepared ahead of time, very little recharging was necessary at the time of firing. The torpedo had variable pitch propellers and a shell of brass. It was used on U.S. battleships and torpedo boats until 1898, when it was replaced by the Whitehead torpedo. The Naval Undersea Museum houses the only known Howell torpedo in existence today.
Latest Discussions»General Discussion»Navy dolphins discover ra...