[Milsurplus] 3 types of Battery: Primary, Secondary & Reserve

[Gene Smar]

Gents:

     Sorry - one more diversion about the VT-fuze (that name was a
deliberate deception.)  When first introduced into the conflict they were
not permitted to be used over land - duds could be captured and
reverse-engineered.  The PTO demonstrated their true value when the Navy
used them against Kamikaze aircraft.  The effectiveness of the VTs was
(sources differ) 3-7 times that of conventional delay fuzes of the time in
downing these attackers.  USN also used them as AA weapons during the
invasion of Sicily.  Ike demanded that he be permitted their use during the
Battle of the Bulge, where they were set to explode as air bursts over the
heads of the assaulting German forces.  

     Now we return to our discussion of batteries already in progress.....


73 de
Gene Smar  AD3F



-----Original Message-----
From: Raymond F Chase [mailto:raydio862 at verizon.net] 
Sent: Saturday, July 09, 2016 8:29 AM
To: 'Gene Smar' <ersmar at verizon.net>; 'Brooke Clarke' <brooke at pacific.net>;
milsurplus at mailman.qth.net
Subject: RE: [Milsurplus] 3 types of Battery: Primary, Secondary & Reserve

The most innovative development for a "reserve" battery was indeed the WWII
invention of the proximity fuze.  A glass ampule of sulpheric acid was in
the center of the dry battery plates.  Force of firing up to 20,000 G's and
force of spin rotation was up to 5,000 G's. This shattered the ampule and
spread the electrolyte to the battery plates.   Actual battery life required
could be more than 5 seconds for a long range artillery shot.  The WWII
fuzes used 4 vacuum tubes with production totaling  tens of millions.
Similar applications are probably still in use today albeit without vacuum
tubes.
Ray

-----Original Message-----
From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of
Gene Smar
Sent: Friday, July 08, 2016 8:00 PM
To: 'Brooke Clarke' <brooke at pacific.net>; milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] 3 types of Battery: Primary, Secondary & Reserve

Gents:

     The "keep dry until used" type of battery was part of the proximity
fuze design in WW2.  I've read that the battery's electrolyte got mixed
among the layers of its positive and negative plates (helically wrapped
inside the fuze body) after the round had been fired out of the rifled gun
barrel and the projectile began its spiral journey towards its target.
Battery life needed to be - what? - five seconds at best?

     BTW - I also read that these little electronic gems were really rugged.
The force of firing was somewhere around 20,000Gs.  Imagine any of our
modern "smart phones" surviving that kind of abuse.



73 de
Gene Smar  AD3F
 

-----Original Message-----
From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of
Brooke Clarke
Sent: Friday, July 08, 2016 2:11 PM
To: milsurplus at mailman.qth.net
Subject: [Milsurplus] 3 types of Battery: Primary, Secondary & Reserve

Hi:

There are three main battery classifications: Primary, Secondary
(rechargeable) and Reserve.

The idea pf the reserve battery is to keep the electrolyte separated until
the time of use.  The key benefit is a pretty much infinite shelf life.
http://www.prc68.com/I/batt.shtml

--
Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
The lesser of evils is still evil.

______________________________________________________________
Milsurplus mailing list
Home: http://mailman.qth.net/mailman/listinfo/milsurplus
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Milsurplus at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html

______________________________________________________________
Milsurplus mailing list
Home: http://mailman.qth.net/mailman/listinfo/milsurplus
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Milsurplus at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html


---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus