70 MM DATA BLOCK READER

• Document Type: CREST
• Collection: NGA Records (Formerly NIMA)
• Document Number (FOIA) /ESDN (CREST): CIA-RDP78B04747A001600030018-3
• Release Decision: RIPPUB
• Original Classification: K
• Document Page Count: 4
• Document Creation Date: December 28, 2016
• Document Release Date: May 25, 2001
• Sequence Number: 18
• Publication Date: February 15, 1966
• Content Type: REPORT

STATI "~
~~~roved For.~Celease 2001/08/13 :CIA-RDP78B0470016000~'00 8-3~
DECLASS REVIEW by NIMA/DOD
15 February 1966
PROGRESS REPORT NO, 1
12/21/65 - 1/30/66
70 MM DATA BLOCK. READER
Submitted by;
Program Manager
Approved For Release 2001/08/13 :CIA-RDP78B04747A001600030018-3
 Approved F~,ftelease 2001/08/13 :CIA-RDP78B047~A001600030018-3
As a result of additional inputs from the Customer after the proposal was
submitted, several changes in design approach have been made. The
list of changes is as follows:
1) Drawings showing the data laydown m.cchanism of the block
indicate that the format and the block are recorded in two
different stations resulting with format wander of .046"
independent of block wander of the same amount. In addition,
a static error of .030" in block Location may occur due to
mask positioning tolLrances. As a result, the original
approach of utilizing fixed wide diodes as the read element
is not feasible, and another head has to be used. This head
will have 14 sections and amplifiers instead of two, and the
logic associated with it has to be capable of switching these
diodes into clusters as dictated by the occurrence of data.
2) The operator should be able to work the machine from a
sitting position. This meant an imaging system to project
the block image at a right angle to the proposed projection.
It also meant a vertical mounting plate for the drive instead
of a horizontal one.
3) A hand crank should be added to enable the operator to bring
the block into the viewing screen, which requi-red bidirectional
clutches on spools.
4) When an error is detected, the film should stop before the
next block reaches the reader. Thi s means addition of
breaking power, and as a result, a stronger drive motor.
5) Automatic stop on error - no extra equipment necessary.
PROBLEM AREAS
~,lectrical design, fabrication and testing are the critical activities which
must be held to a very tight schedule.
Approved For Release 2001/08/13 :CIA-RDP78B04747A001600030018-3
 Approved P~2elease 2001/08/13 :CIA-RDP78B04~A001600030018-3
The entire program has been PERT scheduled to comply with the
April 30 contract delivery date.
All long lead delivery items have been ordered with promised delivery
dates within schedule requi-rc;ments.
The System Concept Design has been completed. Logic Design and
Transport Design nave started.
Receive all connectors and flat packs. Start Card Fabrication.
Complete Logic Design and Wiring List, and start l,ray Wiring.
Complete Transport Design -Detailing and start fabrication.
Approved For Release 2001/08/13 :CIA-RDP78B04747A001600030018-3
 Approved release 2001/08/13 :CIA-RDP78B04`~A001600030018-3
Dollars .
Planned $ -Cum
Actual $ -Cum
`i otal Funds Expended
9 ?/c
Deviation From Plan
6%
Cum to
Hours fan. Feb. March April
Planned Hou-rs -Cum 710 2, 100 4, 870 5, 770
Actual :flours -Cum 770
Total Hours Expended
1 ~4
Deviation From Plan
8%
Approved For Release 2001/08/13"~SCIA-RDP78B04747A001600030018-3