OSS MEMORANDUM TO PRESIDENT ROOSEVELT ON ADVANCES IN PHOTO INTERPRETATION/ICONOGRAPHY REPORTS/LOW LEVEL BOMBING TECHNIQUES

• Document Type: CREST
• Collection: OSS Collection
• Document Number (FOIA) /ESDN (CREST): CIA-RDP13X00001R000100290008-5
• Release Decision: RIFPUB
• Original Classification: S
• Document Page Count: 230
• Document Creation Date: November 3, 2016
• Document Release Date: August 7, 2013
• Sequence Number: 8
• Publication Date: January 26, 1944
• Content Type: MISC

Declassified and Approved For Release 2013/08/07: CIA-RDP13X00001R000100290001-2
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Declassified and Approved For Release 2013/08/07 CIA-RDP13X00001R000100290001-2
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Copy to: Director of .0.4.3e ilisaien, _Land
Date: 221x1 Jaxsisrf, 1944.
lief.: ADW73411/13. VDU
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It is desired to express aopreciAtion for thelban af
Lt. N..N. MAN L.R. at your organisation, whoinut sent tc:Raa.
Stattonliedmenham to demonstrate this methods evolved byymkfor '
producing topographical relief models from oblique photographs.
2. Thro.Aghout his stay Lt. JUAN -has been moat helpful and
has sb,own keenness and ability in, developing the various epplioaticus
of yaw methods which have evolved during his stay.
3. The original demonstration oonsisting of the produotion
of a relief model from two oblique photograpns, while in%resting had
little practical application in this theatre awing to the availability
of vertical air photos-aphs of all areas. It was seen at ammo,
however, that the basic method oould be used to solve a number of
problem IwaviousIsy insoluble here.
4. Lt. JU145 as full details of these applications which
he can iake available to you. Details are not therefore giver .
IlL.rewith. Briefly they covered the follocting:
(i) lr.oLtsurinr, of ships 1:hotographed in convoy from obliques
obtainea during bombing and torpedo attacks to give.
sizes at shipes convoy layout, etc.
(ii) Production of silhouettes and deck plans of nhips from
oblirple 11/lotaarivohn.
(iii) 17%azuriug of enealy installatiens, e.g. wireless stations
obtained nn oblipa photographs.
(iv) 2.Tc2motion of a sihade viewing box for Ilse in airoraft
for determinini: the size of ships seen, using on.ly the
readinc J.ven by the aircraft's altimter.
� LILygl use has already been maaa hare operationally of the
uemnstrated by Lt. MAN. Details have also been
pacasse to einilar units overseas, where the applications are likeky to
ho :articularly in India where for certain seas4as of the
yew:. obliT,16 :IlotoraDhs are the only ones that can be obtained.
ark."J4.
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Asuiatunt )Y rioter of Intollisan00
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Declassified and Approved For Release 2013/08/07: CIA-RDP13X00001R000100290001-2
Mope to i�r. Yard SS January 11104
3. It is telt that suditionel work ahd experiments ehould be
verrted sut toy our ottieo on the matter et determining underwater
depths tyr oblique photegrapky� Per thie purpose, it is suggested that
Liouts 4oram be Paoitie area whore the proper WirOhM810
ter soak experiments oak be fluid. It is osttmhted that two or three
menthe will be required to do this work. In the meantime, however, the
data thus tar developed on underwater depth determination should be
turned over to the burseu et Aorenautios so that they may nake use of
the information.
Its The Pilotes $eale Istimetor is reedy tor use, and should be
turned over to the Army and Navy Departtonts. A emall amount or further
wiprk should be done td produde co very mill model ot the pilotos seale
ontimetftr whioh 04h fit into the palm or one hnnd end whish tAll require
only one hand to operate. Por this purpose Lieut. Juran is making a
trip to Iteseester, New York, to conoult with Ions experts end es to the
reesitility of the smell else model.
Declassified and Approved For Release 2013/08/07: CIA-RDP13X00001R000100290001-2
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Declassified and Approved For Release 2013/08/07: CIA-RDP13X00001R000100290001-2
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Sobjtett lommography, Disposition ofliosterial tn
The work which boa been doom and the developmantslbroughhterterl
in Ll.anogrorhy divine theaselves up into four general mit4ies
(4) Itanogralikr
(h) Perspective Icosamster
(0) Underwater Depth Determination
(d) Pilot's Scale Estimator
In order to maks the best use of these units and to gst then into this,
field as quickly as possitas, the following suggeitions are d. for -
thekr disposition.
1. The work of iconography divides itself into two uses, 1).mn
aid to photo interpretation, 2) as aid in landfall technique (model
building). It is suggested that the work on i0onogreph1 already goonsu
plishati be tarnod over to the Bureau of Aeronautics where thar can put
U to use both in the Photo Interpretation School ab Anacostii, under"'
Communder areen, aod in the Landfall School of the Bureau of Special
Devices Division under Lieut. Togelgesang. It is folt that these orgeini�
teticas with their superior equipment, space, and personnel ellotment'
are la Ina best position to further the interests of and to make use of
t4e&A is:aerations in tomography.
2, it is suggested that information cm tgle perspective icenoneter
be made avails/tile to the Durum of Aeronautics and the Office of floral
Intallionee is will as to the laws this device will greatly facilitate
making **etches in Use field, end hie marked application in the oohing of
targot mapsi.r goviever, further 'work should be dons by our offise in odor
to eevelop the perspeetive leesioneter slung particular lineally mai* it
Ge maims to the Office of St4sategie 1401r1d00041 It is felt that 0, moll
rlailareible it can he preesced and issued to 0.84. agents for the
purp44t it molting gull* set aosurate sketches of labithinig they see in
areas where tho pOOSOW400 Of * eemera would to� a serious danger to
themito:Om44
Declassified and Approved For Release 2013/08/07: CIA-RDP13X00001R000100290001-2
Declassified and Approved For Release 2013/08/07: CIA-RDP13X00001R000100290001-2
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Declassified and Approved For Release 2013/08/07: CIA-RDP13X00001R000100290001-2
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- ' Declassified and Approved For Release 2013/08/07: CIA-RDP13X00001R000100290001-2
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