XPost: aalt.war.world-war-two, soc.history.war.misc, sci.military.naval
On 12/5/23 09:40, a425couple wrote:
Musings on Naval matters ·
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Maryellen Reilly
Fri
A reboot of this share…….. Hey Rube!
Roy Grumann was able to get the price of the Hellcat down to $35k …… there's a switch
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L. Thomas Rouse
Former Senior Chief Electronics Warfare Technician at United States Navy (USN)Updated 1y
Did the Japanese forces suffer such horrific losses in the WWII
“Marianas Turkey Shoot” air encounter due mainly to the American
aircraft carriers advantage of being equipped with radar?
Byron Arnason
· Fri
Nice article but a significant error, the new fuses did NOT employ RADAR
which is an ElectroMagnetic WAVE phenomenon. Those marvelous fuses
relied on a simpler, more rugged and more elementary MAGNETIC INDUCTIVE COUPLING methodology.
The fuse would cause electrical currents to flow in the aluminum skin of
the foe and the magnetic field caused by those currents would activate
the fuse. Marvels of Vacuum Tube technology.
NOT RADAR !
Nearly as marvelous were the new “saturated magnetics” magnetometers
which made sub hunting much easier. An unintended result of those new magnetometer surveys was the analysis of SEA FLOOR SPREADING and BINGO!
PLATE TECTONICS.
MAGNETRONS, RADAR, PENICILLIN, Saturated Magnetometers. These are all
resulting blessings of deadly WAR.
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John Boudrea
· Sat
True that.
I only wish I could photograph the cool display about the Fuse that I
walk past were I work, where it was developed (JHUAPL). Taking photos is prohibited on campus
Duncan McDougall
· Sun
Wondering about that one … According to Wikipedia:
“… Radio frequency sensing (radar) is the main sensing principle for artillery shells.
The device described in World War II patent[63] works as follows: The
shell contains a micro-transmitter which uses the shell body as an
antenna and emits a continuous wave of roughly 180–220 MHz. As the shell approaches a reflecting object, an interference pattern is created …”
Also, this might lead to a few issues with such aircraft as the RAF
Hurricane and Mosquito, or the Italian SM79 Sparviero, which were mainly
wooden construction so would not generate electrical currents.
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Byron Arnason
· Sun
Yes, note that the Patent states that the transmitter emits a
“continuous” signal. RADAR does NOT emit a “continuous” signal. RADAR emits very short high energy PULSES and records the two-way travel TIME
for the reflected pulse to return to the shell.
One of the biggest challenges of that development was that the xmitting
antenna was ALSO the receiving antenna AT THE SAME TIME! It was truly
amazing that they could make those FUSES work using vacuum tube
technology, old carbon style batteries, with the shell spinning and
speeding at thousands of feet per second.
That development was NOT the result of sloppy contaminated laboratory
work as in the case of Fleming's dirty petri dish. The best Electrical Engineering minds were focused on that FUSE development.
It was so futuristic and innovative that, even when the Japanese and
NAZIs discovered the FUSES, they thought it was an Allied Hoax.
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