PROPOSED 'B' CAMERA MODIFICATION

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP67B00511R000100010019-0
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 2
• Document Creation Date: November 17, 2016
• Document Release Date: February 10, 2000
• Sequence Number: 19
• Publication Date: April 18, 1963
• Content Type: MF

Approved For Release 408/28: CIA-RR 7RP11 R00010I19-0
2346-63
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[,nn 1963
MEMORANDUM FOR: Deputy for Technology, OSA
SUBJECT: Proposed "B" Camera Modification
1. It has become increasingly apparent that more
running time is desired for the "B" camera on IDEALIST
operational missions. Because of the dispersion of tar-
gets and the long routes, it is not possible to adequately
cover targets in Mode 2 (20 mile swath). Therefore it is
usually necessary to use the Mode 1 fan in order to keep
from diverting from course to pick up widely spaced targets.
The two alternatives to complete Mode 1 coverage are to
turn the camera completely off for long periods between
major target areas or to switch from Mode 1 to Mode 2
frequently in order to extend the total flight line
coverage.
2. Operations Division has previously proposed that
the number three left and number three right positions of
the Mode 1 fan be eliminated in order to gain approximately
20 percent more linear coverage for a given amount of film.
3. Hycon has proposed a wiring and governor change
which will eliminate the number three left and number three
right positions, but it disrupts the sequencing of Modes 2,
3 and 4. Also this was a field modification which had
to be accomplished by Hycon technical representatives.
This modification was tested by the Detachment at Edwards
Air Force Base and according to the reports, it was com-
pletely successful. The field modification apparently did
not affect the reliability of the camera.
4. A subsequent Hycon proposal in BAG 6291 proposes
to eliminate the same high obliques in Mode 1 by making a
wiring change in the programmer and changing to low-gear
operation with no change in governor. The second proposal,
from an operations viewpoint, is preferable to the first,
if only because the change can-be made quickly. However,
the total requirement should perhaps be restated. The
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selector switch. The following outline of modes should
be retained:
a.
Mode 1
- Horizon to horizon fan.
b.
Mode 2
- Vertical and first oblique
each side.
c.
Mode 3
- Vertical and right fan.
d.
Mode 4
- Vertical and left fan.
e.
Mode 5
- A fan with vertical and first
final modification should permit pilot selection of any
mode, existing or contemplated, by means of the cockpit
and second obliques.
Unless it is mechanically impractical or there is
some serious objection from using agencies, the above-
mentioned Mode 5 can completely replace Mode 1; however,
this would be a definite secondary consideration.
5. It is essential that the ultimate users agree to
the elimination of the high oblique photographs, especially
if the normal Mode 1 must be eliminated in favor of the
proposed Mode 5.
6. It is recommended that an Engineering Change Pro-
posal be requested from Hycon to provide the selection
schedule in paragraph 4 above.
Deputy for Field Activities, OSA
cc: COMOR
NP IC
C/PS/OSA
. ,,..-C DD/0SA
C/COMMO/OSA
C/SD/OSA
C/ID/OSA
SECRET
Approved For Release 2000/08/28 : CIA-RDP67BOO511 R000100010019-0