Interesting Article on Japanese WWII Radar

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3 total messages Started by Jim Haynes Mon, 11 Jan 1993 04:23

#11361

Author: Jim Haynes
Date: Mon, 11 Jan 1993 04:23

19 lines
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From Jim Haynes <haynes@cats.ucsc.edu>


A friend just told me that there is an interesting article in the latest
IEEE Antennas and Propagation magazine by a pioneer of radar in Japan.
It seems they had invented the cavity magnetron some time before the
English; but the idea of pulsed radar was new to them.  And that their
scientists considered nuclear weaponry as too difficult for even the U.S.
to achieve (within the time frame of the war), so they worked on a different
magic weapon, intending to use very high power microwaves to shoot
down aircraft by disrupting the control systems.
-- 
haynes@cats.ucsc.edu
haynes@cats.bitnet

"Ya can talk all ya wanna, but it's dif'rent than it was!"
"No it aint!  But ya gotta know the territory!"
        Meredith Willson: "The Music Man"

Re: Interesting Article on Japanese WWII Radar

#11434

Author: Charles K. Scott
Date: Thu, 21 Jan 1993 18:41

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From Charles.K.Scott@dartmouth.edu (Charles K. Scott)

In article <C15ywt.LGz@law7.DaytonOH.NCR.COM>
James Parkyn <jparkyn@kilroy.jpl.nasa.gov> writes:

> Maybe the microwaves could disrupt the ignition system or cook the pilot,
> but there were no control systems that I can recall until almost the end of the
> war in planes such as the B-29 that had empty-state devices (vacuum tubes) in
> (gasp) analog fire control computers. I really can't remember if they had
> tube autopilots. 

Most if not all American bombers had an autopilot.  If they used the
Norden bonbsight, they had to because the bombsight was coupled to the
auto pilot and was flying the airplane during the run in to the target.
 These autopilots were gyros I believe, I don't think tubes were
involved.

Corky Scott

Re: Interesting Article on Japanese WWII Radar

#11663

Author: steve hix
Date: Wed, 27 Jan 1993 15:57

32 lines
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From fiddler@concertina.Eng.Sun.COM (steve hix)

>From Charles.K.Scott@dartmouth.edu (Charles K. Scott)
>James Parkyn <jparkyn@kilroy.jpl.nasa.gov> writes:
>
>> Maybe the microwaves could disrupt the ignition system or cook the pilot,
>> but there were no control systems that I can recall until almost the end of the
>> war in planes such as the B-29 that had empty-state devices (vacuum tubes) in
>> (gasp) analog fire control computers. I really can't remember if they had
>> tube autopilots. 
>
>Most if not all American bombers had an autopilot.  If they used the
>Norden bonbsight, they had to because the bombsight was coupled to the
>auto pilot and was flying the airplane during the run in to the target.
> These autopilots were gyros I believe, I don't think tubes were
>involved.

The Sperry autopilots were gyro types.  The earliest flying experiments
with a Sperry-type autopilot were done around 1918 with a gadget called
the Doodlebug.  Nothing like the later V-1...sort of like a Nieuport with
no visible pilot.





-- 
-------------------------------------------------------
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| to everybody else and have none left for yourself.  |
|------------------------ Dieter the car salesman-----|

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