BATTERY DISCHARGE INDICATION AND REVERSE CURRENT RELAY IMPROVEMENT

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP89B00980R000200180035-6
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 1
• Document Creation Date: December 14, 2016
• Document Release Date: October 16, 2002
• Sequence Number: 35
• Publication Date: January 2, 1963
• Content Type: FORM

ele
998~R60
------.-
-
A
~
~
ENGINEERING STUDY
~
Loon
~cRAt
r ca~Paxa
rorT
.
-i~7
~~
CHANGE PROPOSAL
_~
-
.
.
DATE 2 JAr/fJAHY l~i
3
^_~~'_
ArFECTS ':
WSPO ~ PROJECT ~~~
NAME OF MAJOR COMPONENT
PART OR LOWEST SUBASSEM(~LY ,:
PART NO. 8 MODEL OR T`fPE
~
TITLE OF PROPOSAL
~~
-- Y DTBCHAI2GE It~ID1CAT201~ A~ ~~
C ~rrr ~K.ay nrPRl7V~'.~''~'
_
_`
NAl'URE OF PROPOSAL
1. Aepl.ace the existing Reveree Current :Relay and Batted Relay with u relay ~ticth
would combine the flanctiona of both and provide the foll.au3ut; impravementss
a. A relay contact w~;3c~~ wrould close whenever battery discharge current
exc~ed.a 5 Amps.
b. Provide an i~roved spxic~; losd~ecl "differential. voltage-reverse aurxe~t"
coa~te~ct wri3ch will drop out wixenevar the relay is de-energized.
c. Px"o~.de a limit in the cockpit Which will illu~:>inate whenever blatt
Y
y
e
di~zarge cux~s-ent is 5 ~s our mlax-e.
~. prepa~2re srtd issue a/ Service Bulletin r:~ menu3~eture the necess~.y kits.
REA;50N FOR PROPOSAL
1. p're'vent battery discharge without pilots Iuzowledge of saria. This wpu].d :t
e~uplete loss oi' vower due to l.oz,r D?.C Generator voltar;e ar failure of the
reva~rse current relay.
Q. Prevent a.licat3on to the D-~C buss of a generator with law vnl.tage c>~n reversed
po3.a#tty. 'the existing Rev~zrse Current .Relay has a. z~etically latched
+'
ctii`!'erential ~rotxl.tage-x~e~v~rse cnrrc~t"` ~oe~tact which wa11 ap+~,n oily 3f revler>~e
current is dras+n by the generator. This obviates the dif"Perentia7. motion of
the relay ancl, ~11.q a generator with low..voltage an xevezsed pol.su3ly to be
>~pQ].j.ed to the busy:
i
ESTIMATED COST AND TIME INVOLVED ~~
ST
E
~
'
ST
ADDITIONAL FUNDING. REQUIRED
ESTIMATED COST FOR KITS OR PARTS : w G~stosner No. ~,-7 Kits ~
ADDITIONAL FUNDING REQUIRED : Pdone (SP-1.922 Cuctoaer No.2 - Q7 Kite
ITEM:i AFFECTED BY PROPOSAL
SAFETY
MISSION
EFFEC-
PERFORM-
ANCE
OPERATING
PROCEDURE
INTER-
CHANGE-
WEIG:FIT CMt
WEIGHT i
TOOLS i
SUPPORT
MAINTE-
NANCE
SERVICE
IIfE
FIIGHT
MANUAL
MAINTI:-
NAIVCE
TIVENESS
ABILITY
BA'! nNCE
EQUIPMENT
PROCEDURE
MAnIUaI
a
a~
a
^
^
?
^
~
e~
EST. MAN/HRS. REQ'D. TO ACCOMPLISH CHANGE IN FIELD
SOURCE OF PARTS FOR KIT ~~~~
AVAILABILITY 1~_ WEEKS AFTER APPROVAL
?.AC
.~
_ ~ ^W
DISP(JSITION OF SPARES AFFECTED
S
_ AN3o25-.2 RB~.AYS 1~o I,or~c~;
R~UIRED
`
INlTl,ATED 8Y :
APPROVED WSPO
Approvg~For Release 2002/10/31 : CI
-RDP89B00980~~
180035-6
~.:
'' ~ ., PAC;F 'Li7F
T
T
AT