NEW ECP'S

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP33-02415A000500030008-4
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 1
• Document Creation Date: November 11, 2016
• Document Release Date: November 23, 1998
• Sequence Number: 8
• Publication Date: May 21, 1963
• Content Type: MF

Sanitized - Approved For Re -RDP33-02415A000500030008-4
IDEA 1 266
Copy 3 of 9
2 1 MAY 1963
FOR: Deputy for Field Activities, USA
SUBS' : Now EC'' s
The following UP's applicable to U-2 aircraft were
approved 27 May 1963:
25X1A5a2
25X1A5a2
25X1A5a2
25X1A5a2
25X1A5a2
a.
juh~ 140 mgt of A- C Generator System
.
This Kam' rep is the ernator with the
R"VA Alternator. Repeated failures of the
alternator and regulator together with the need
or greater AC capacity justified this gam'. Service
Bulletin kits will be available in about 22 weeks.
Kits will installed by the detachmeents.
b. 1.15 New Inverter ffi tam. ThisP replaces,
the pre-so av*rter with a 750 VA
Inverter. This will provide additional inverter back-is[
in case of inverter failure and will eliminate the carLca
staeuck regulators which have been the source of most
inverter failures. The rev{sed inverter circuitry will
provide for use of the existing 100 VA and 250 VA
inverters and AC Alternator as back-up In event the
750 VA inverter fails. This will enable the pilot to
complete a miaaasion successfully where previously an abort
would have resulted. Under this condition, the pilot eua
select one of two alternates-all, syste except 61ST-3
or all system except adeev'ous Beacon. In event both
the 750 VA and 250 VA inverters fail, the 100 VA inverter
will still supply power to emergency flight instruments.
25X1A9a
Chief, Materiel Division
US A - ?/R
cc: AD/ A.
DAD/06A
00/05*
/ A
Sanitized - Approved For Release : CIA-RDP33-02415A000500030008-4