CABLE TO DIRECTOR FROM <SANITIZED> RE IMAGE INTENSIFER EVALUATION

• Document Type: FOIA
• Collection: FOIA Collection
• Document Number (FOIA) /ESDN (CREST): 05752596
• Release Decision: RIPPUB
• Original Classification: U
• Document Page Count: 2
• Document Creation Date: March 9, 2023
• Document Release Date: February 10, 2021
• Case Number: F-2011-01575
• Publication Date: March 21, 1966

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VA(.3E INTENSIFIER EVALUATION
74.3Z 21 MAR 66
DIRECTOR
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1. K4GLITTTRS KnIELS0 GAllOLA AND OPPERUD WERE CHOSEN TO
CONDUCT A PRELIMINAW! EVALUUATION OF THE. DRIFT SIGHT TMAGF
INTENSIFIER. THE P2V TEST BED AIRCRAFT WAS AIRBORNE AT 1000Z
17 MAR UNDER O.EAR SKIES. THE FLIGHT WA'S PLANNED IN SUCH A
MANNER TO EXPERIMENT WITH VARIOUS PHASES OF DARKNESS. THIS
INCLUDED 2 HOURS WITHOUT MOO\ILIGHTg 1 1/2 HOURS WITH A QUARTER
MOO Ng AND FINALLY g DAWN.
ALL KWGLITTERS AGREED THAT THEY WERE HESITANT TO MAKE ANY
FIRM COMIITTMENTS BECAUSE OF THE LOW ALTITUDE (10M TO 12M)
OF THE FLIGHT. THE EQUIPMENT SHOULD BE FLOWN IN THE ARTICLE
FOR SEVERAL FLIGHTS :N ORDER TO GIVE A MORE REALISTIC
PRESENTATION.
5. Il VIEW OF THE A?OVEg THE FOLLOWING OBSERVATIONS AND
iFCDMMENnTIONS ARE SUBMTTED:
A. EYE STRAIN ')AS VERY PREVALENT CAUSED MOSTLY BY THE
1aR-�I,14 nNE OF IMAGE PF!.SENI-qTION. ANOTHER CONTRIBUTING F;;CTO1�!
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k 574E � 1-45Ti;, /NTESITY oF LT.GHTS FROM POPULATED AREAS.
Bo SHOULD HAVE A D21lMER CAPABILITY � FOSSIBLY A RHEOSTAT
OR FILTER.
� C, woULE) PREFER BEING ABLE 70 LOOK AT, ImAGE WITH BOTH
EYE SpA THFOLGH BINocULARS� INSTEAD OF wEH ONLY ONE EYE,.
A EETACHTLE tNIT NIGHT FE DEVISED FOR THIS PURPOsE
Do PREFER To KEEP �4 MAGNIFIOAT ON A$ OUR PRESENT SIGHT
RATHER THAN. 1.5 AS PROGRAMMED.
E. PRES1STANCE FROM GOUND LIGHT SOURCES SHOULD BE
SHORTENED. BECAUSE OF THIS, STRAY LIGHTS FROM AUTOMOBILES
OR OTHER MOVING OBJECTS TEND TO mAKE :IDENTIFIED FEATURES DISAP.PEAR.
F. BECAUSE OF THE QUARTER MOON, THERE WAS INSUFFICIENT MOONLIGHT. RECOMMEND FUTURE TESTS BE CONDUCTED IN ARTICLE DURING
CONDITIONS OF CLEAR SKIES AND FULL MOON, THIS WOULD BE ABOUT
4 APRIL.
G, FINALLY, DO NOT FEEL THAT NAVIGATION ON A DARK NIGHT.
COULD BE�ACCOmpLISHED SUCCESSFULLY WITH THIS AS THE SOLE
INSTRUMENT. TERRAIN FEATURES AND MAN-MADE OBJECTS ARE
EXTREMELY DIFFICULT TO IDENTIFY.
END OF MESSAGE
Approved for Release: 2021/01/11 C05752596