ORGANIZATION OF THE SIEBEL GROUP, ZAVOD NO. 1, PODBEREZYE

• Document Type: CREST
• Collection: General CIA Records
• Document Number (FOIA) /ESDN (CREST): CIA-RDP80-00810A000900710010-3
• Release Decision: RIPPUB
• Original Classification: S
• Document Page Count: 10
• Document Creation Date: December 15, 2016
• Document Release Date: May 24, 2001
• Sequence Number: 10
• Publication Date: May 28, 1953
• Content Type: REPORT

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CENTRAL INTELLIGENCE AGENCY
INFORMATION REPORT
SECRET
SECURITY INFORMATION
COUNTRY USSR (Moscow Qblast)
SUBJECT organization of the Siebel Group.
Zavod No 1, Podberezye
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This Document contains information affecting the Na-
tional Defense of the United States, within the mean-
ing of Title 18, Sections 793 and 794, of the U.S. Code, as
amended. Its transmission or revelation of its contents
to or receipt by an unauthorized person is prohibited
by law. The reproduction of this form is prohibited.
REPORT NO.
DATE DISTR.
NO. OF PAGES
REQUIREMENT NO.
REFERENCES
28 May 1953
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SUPERVISION
1. (The chain of command from the :5 '1e, [vInd to Zavod No 1 is shown on page
nine.) On paper, there were a few Soviets in charge of technical matters.
Actually, these were either figureheads or acted as liasbn engineers. Stated
briefly, the Soviets were in charge of matters pertaining to administration and
security, and the Germans directed the design work, trying to fit it into the
changing Soviet requirements. (See also paragraphs 16-22.) There was, however,
no one man in the Siebel Group who directed all phases of design and production
as did B ade in the Junkers group. I considered all those who were department
heads "good men," and not merely figureheads. None of the German supervisors
spoke Russian before going to Podbere'e. (Paragraphs 2-15 describe the various
nal chart of the Siebel Group.)
ti
i
o
za
departments of OKB-2e Page ten is an organ
The Chief Designer's (Haupt Konstrukteur) Office was responsible for the entire
coordination of OKB-2 design and development activity. Actually, Ingr Roessing
ed with administrative matters, although he maintained a
r
ril
y conce
n
was prima
general knowledge of the designs and their progress. Bereznyak was primarily codn-
cerned with liaison between the Siebel Group and the Soviet, Mi aAvIhd'
not have to go through the Plant Director. (In comparing Roessing with Baader
source commented that Baade was considered to be quite friendly with the Soviets:.
He was the German closest to the Kremlin, in fact, had been there once. The
Soviets gave him a Pobeda for his work on the 150 airplane.) 25X1A
STATE X ARMY NAVY
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Airframe Construction (Flugzeugbau) was responsible for airframe and
aircraft components design and construction but was not responsible for
Gower plants. Roessing, assisted by Ingr Hans Hei nsohn, was in charge.
Frau Be ke was the secretary.
4. Aex`odyna ics (Aerodyi amik) eras .responsible 'for determining the best aero-
dynamic form and the coefficients thereof. They did not concern themselves
with air loads except to provide aerodynamic data to the Stress Section.
The f irit five'mexi listed below are former Heinkel employees.
Dr Schmitz (previously head.of Aeordynamics at Heinkel)
Dr Motz'eld
.***Jensen ?mathematician
**Fuchs
*Eulitz
***Dipl Ingr Richter (Schlieren specialist, worked as liaison man in
the wind tunnel at Podberezye)
Lifschuts - calculator (Soviet)
5. Preliminary Design (Entwurfsbuerb) took the Soviet requi,Y'eraents and, to-
gether with Aerodynamics, worked out the general configuration, perfor-
mance., and some details of the major subsections of the airplane. They
worked hand in hand. with the detail designers as the Work progressed and
frequently borrowed help from the other sections. As'bead.of this depart-
merit, Guenther was. primarily responsible for originating the Siebel Group's
projects, u id.not direct the detailed design or construction. During
the war, Guenther .had been the head.of Preliminary Design at Heinkel.
He had worked on the He-111. LI-Source was asked what he thought of the
rumor that Guenther had contributed to. the MIG-15 design. Source looked
surprised and said that he did.not believe itj
***Dipl Ingr Guenthef', Siegfried Chief
Umanskiy'. (Soviet) Pretended to be Chiefs r49-52; was only a translator
***Ingr Benz a. Project engineer on the 448 and 478
***Dipl Ingr Becker, Weiner
*Dipl Ingr Scherer
**Ingr Weilepp, Otto
**Ingr Pholing
6. Personal Affairs (Personalangelegenheiten) was concerned with the personal
problems and living conditions of the Germans. This office took,up
matters of pay,, vacations, travel.passes, etc. with the Soviets. In the
beginnta it was also concerned -frith quarters and food rationing.
***Wilmsem, Paul - Chief
Dipl Ingr'Butter (inventor of explosive rivets, arrestedby the Soviets
after his return td the Soviet Zone)
7. Design Office (Knnstruktionsbuerq) was responsible for the detail design
of aircraft structures and equipment exclusive of engines.
Ingr Heinsohn, Hans - Chief (former head of fuselage design at Siebel,
Halle)
Dipl Ingr Peltzer, Waldemar - translator
*Ingrr Schurz, Edwin
*::Returned. to Germany in i950
x* ;geturned to Germany in Jan 52
*** Released for return in Sep 51 but held back Jan 52 for unknown reasons
No mark - still on payroll as of Jan 52
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a.. Wing,Design
*4Ingr Noetzold, Martin - Chief
**Ingr Ladwig
**Ingr Kuehn, Horst
*Ingr Lueckmann, Hans
**Ingr Grothe, Paul
*Ingr Grosskopf
**Ingr Ergenzinger, Eugen
**Christen
b. Fuel Tank Design
**Ingr-Wenzel,..RUdi - Chief
"*Ingr Schleus.sner
**Ingr Kabel, August
**Ingr Buenemann
C. Electrical Section
**Ingr Albert, Helltut - Chief
Ingr Borchert, Heinz
**Ingr Schubert, Paul
Fu8elage Design
be.couId speak hardly a.word of the languaW.. The only Soviets in this
section were calculators.
. **Ingr Balluff", Hellmut - Chief
***Ingr Mehl, Erwin
*Wennri t}4, :C,Leo
**Feyerabend, Hans
I'rteger, Herbert
**Knoll., Herbert
*Haak, Siegfried
*Rolof'f, Gerhard
*Haul, Hans
*Bvldt, Hans
(I_.was employed it this section of the Design Office)
Stress:Analysis (Stat1k) calculated the strength of structural. parts.
.They also calculated the airplane center of gravity based on the weights
.of individual parts as calculated by the respective detail designers.
Part of the Stress Section supervised and ran static tests. Ingr Neumann
was responsible for air load.calculations. He was the only German who
could prepare an. analysis direct~y in Russian, in spite of the fact that
Ingr Heinze Chief (in Halle, head of fuselage and flight controls
stress. analysis)
***Dipl Ingr Michalek
*Dipl Ingr Machill, Hans
***Ingr Herm-Meyer
.*Ingr Fischer
*'*Ingr Fiedelschuster
*Ingr Scholz
***Ingr Neumann - Air loads (Lastannahme)
***Dipl Ingr Weber
***Ingr. Maul, Kurt
.*Returned to Germany in 1950
**Returned to Germany in Jan 52
***Released for return in Sept 51 but held back Jan 52 for unknown reasons
No mark - still on payroll as of Jan 52
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Vibration Analysis (Flatterbuero)..'was.responsible for all calculations
pertaining to aircraft vibration. The group also supervised the vibration
test of the 346 airplane and the building and testing of the 1:20 wind
tunnel. model fdescribed.in The Chief, Dr TheileCnann,
was a ngood.man". fDuring.technical discussions, it was evident that
source. considered Dr Thielemann to be one of the best when it comes to
Tibration analysis] He had formerly worked.for Siebel in Halle as a
stress men and later as a vibration analyst. In this section, there were
no. Soviets except calculators.
Dr Thielemann - Chief
**Dipl Ingr Dietze, Fritz
**Dr Sander (formerly,"Studienrat")
10.. 346 Project Engineer (Typenleiter) and Flight Test (Flugerprobung).. As
project engineer, Rauschen was responsible for coordinating all design,
construction, and testing on the 346 air lane, (The 466 and 478 Project
engineers came under Preliminary . Design. After Rauschen went to Germany
in 1950, the group handled.flight test work. There were no Soviets with
any authority -- too much resprmsibility.
*Rauschen - 346 project. engineer
Dipl Ingr Zieset,Wolfgang - chief pilot
*Motsch, Hans - :,lot
Treuterr:.Karl. - pilot
..*Ingr Jakob
Szschuka - maintenance chief (IMonteur)
Steek - radio specialist
**Zuelke -,ass't radio mechanic (son of Zuelke in Design, Tool aad rTigBuilding)
**Kn&e$-taedt - charge of re uriing -operations (father in OKB-+)
11. Measurement Techniques (Messtechnik). There were two sections in this de-
partment, a laboratory and an experimental. shop. They were primarily
responsible for test instrumentation methods to be used in .either labora-
tory or flight tests. They also worked.with radar, but I believe this
dealt only with.reworking and. . improving. old German sets. There was a
complete X-ray =chine that was never-used, I do not know anything about
Wehdeys background except that he was not in the aircraft industry
R tort 19+6
Dr Wehde, Heinz - Chief
Rabinovich (a.Soviet; theoretically he was chief and took credit and
,contributed nothing'.)
***Scheil - theoretical mathematician
**Limbach
**Manthey,, Rudi - radar specialist
.*Dipl Ingr Raeck - X-ray specialist
*Reinlaender
***Steidle - designer
Ingr Preuss - instrumentation specialist for tests other than flight tests
*Hellrigl, Hans
**Walter
Experimental Shop:
**Nikolaus - foreman (Obermei.ster
**Steek, Eitel - leadman (Meister
Banse learn (Meister)
**Schmidt - leadsman (Meister)
* Returned to Germany in 1950
** Rttu 'ned to, C}er!nan5r in .fan 52
* * Released 'or ,ret x-n 'i6,Sep 51 but held back Jan 52 for unknown reasons
Na mark - st .l? pn , yroll'.as of Jan 52
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*Bor nn
**Napiralla
*Glocke
Kenn
*Brandel
*Henze
*1heln
List
*nndert
"ay
1 Power Plant (Triebwerk) Group spent their entire time working on the design
and testing of liquid rocket engines-; primarily the ~ "Walther 0!en" for the
346 but also cud a development work on a,small engine planned.for the
M-160 research .m$.$sile; There were three sections in 'this 'group; design,
experimental. shop,, and test stand., The only Soviets .were draftsmen.
Ingr Schell
Inge Ufar
' I,ngr Mueller, Rudolf
****lugr Winter,
1*'Dip1 Ingr Mueller
Schenk
** &eck - design leadman
Xuenzel
*Schenn+
*Luksch
~~th
*Ztatecksr, e,inrich
~~kaul
**Sparrer - mathematician
Michaelis
Shop and Test Stand..-
t:oslick - 0bsrmsister
**Xrambo,.Willi - Obermeister
**jocke, , ermmm-:? vIste+r
+ tilisn -installations mechanic (Schlosser)
,**Gala
- Lindemann
anke
*Sittka
+X-Ja,hnke
**Goll (or Coll).- imstallatigns,mechanic (Schlosser)
*Zschirne
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13. The Chemical Taboratory"(Chemie) was primarily concerned.with .the ,developments
of 'liquid rocket fuels and the tank materials and sealing commmpoumadsa to with-
stand "the fuels, They also did .chemical analysis for both the Siebel and
Junkers Groups. None of the German personnel in the laboratory were Siebel
men and., therefore, I have no information regarding their backgrounds:. There
warm no Soviets in the laboratory -- no credit to be obtained.
Dr Dunken - Chief
:*Rmmerich (Chief before he went to Germany in 1950)
r nie.l
-K*Dr Brumeister
* Returned to Germany in 1950
* Returned to Germany in Jan 52
* Released for return in.Sep 51 but held, back Jan 32 for unknown reasons
No mark sti , . on payroll 4s of Jan 52
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Dr Jabnke
*]r Hahn
**Tybus
*Henkel
Keil.
**Rudat
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11< Tool and Jig-Building (Vorrichtungsban) was a joint . operation. of both the
Junkers; and Siebel people working together. The Siebel Jig builders .were
.primarily concerned-with their own . projects Wand. worked as a,unit when they
had sufficient work to-.do. At other times, they helped. . out.with the Junkers,
w'ork. The only.Siebel people 'working after September; 1951, were the tool
designer's who were working.' on the 150 producti= toollag drawings. The
first concern of 'all.jig,builders was to make tooling necessary for the
limited manufactuiing..done at Zavod No 1. In addition, design drawings
for tooling necessary for mass production were made and given to the Soviets.
Design:
Stollbery Gerhardt - Chief
*Geroi,s,ch
*Thomsen
Zuelke.
Shop:
TOrn$k foreman (Obermeister.)
*Eichler
*Schirioth
**Michaelia
~Suieki
15. The shops were also a,oombined,operation similes to that described for Jig
.,building..
Machine Shop-`and Equipment Assembly (Xechanische Werkststt and
Bgbhossexei)
I Ingr Schumann, Herbert - shop engineer
Ingr Rufferty Oskar shop engineer
*Naumann heduler (Vorbereiter)
*Elste Spheduler (Vorbereiter
**Hermann .- foreman (Oberme d.$ter
* j uenemann
.**Friedrich
**Brode
***Kolar
**Meier?- equipment assembler (Schlosser)
.b. Assembly (Montagehalle)
.,* agemann - foreman (Obermeister)
**Geisler - foreman (Oberme .liter)
**Bichutta7, Ernst - foreman (Obermeister)
**Oblonscheek - foreman (Obermeister)
**Reuter - foreman (Obermeister)
**Klema= - leadman (Meister)
Returned Returned. to in .1950
Returned to,Germany in Jan 5
* Released for return in.Sep 51 but held back Jan 52 for unknown reasons
No murk still an payroll as of Jan 52
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*Kreiuoe tinket (Klempner ).
**Winkier ., tinker (Klempner )
*Birkner ttnker (Klempner')
c. Sheet Metal Sh.+op : (ffi.empnere i )
*Keller - forehan (Meister)
Grohmann - t ibker (Klempner )
'Scheller - tinker (Klempner)
Woodworking Shbp (Tischlerei)
'Griesbaber shop engineer (Betriebsingeneur)
**Cornelius - f'or 'eman (Obermeister)
**Kilian
Ziicheski (T)
~Wan~e~nn
Roehling
*Brge
e. Static Test (Btiuchversuch)
,*Schneider - leidman (Meister)
Plastic Shop (Plexi.-Abteiiung)
*MZeh, Hans
g. General Helper (Ijilfskraft)
*Gotschla
DESIGN PROCEDURE
i6. On initiating a project., the Soviets were very vague about their require-
ments;. For the 476, they simply said that they wanted a very fast inter-
ceptor with. ,lots or arz}iament A After the first sketches were made., they
got more specific in their requirements and asked many questions as to why
such and.st ch .a ,des.ign was used. The Soviets contributed.no design data
at ,all.
17, Preliminary Design made 1:20 three-view drawings and 1:10 sectional views.
As the new design brogre.ssed,, they worked-closely with the detail designers.
To assist both preliminary and. detail designers., a mockup of tie 478 cockpit
was'built. Its attitude could be varied to.check pilot comfort and
visibility,
18. Detail design drawings were first made in pencil andiwhen the design was
fixed,, they were traced,in ink. 478 drawings, were made with notations in
Russian. Earlier drawings were translated from German into Russian. The
drawings were signed.only by the designer and-his immediate supervisor.
Soviets eigned.dralringa only if they happened to be the detail deaf ner- of
that partic.ulai part. Roessing.signed,only the Project Book (Mappel.
This. Project Book bontained photographic reproductions of'the most important
drawings (&swings of individual parts were not included), calculations,
and,.test data.. The original copy was in'German, but it-was also translated
intC Russian.:
A Retuned: to 0ermanr in 1950
Returned to Germany in Jan 52
* Released ,for return in Sep 51 but held back Jan 52 for unknown reasons
No ilark - still on payroll as of Jan 59
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The drawings on the 1466 and earlier designs were made according to the
German system. The 178 drawings were made according to the Soviet
"system". The Soviet 'Yyretemtt was a mixture of German and American, but
the engineers were unable to get the Soviets to say exactly what they
wanted.
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.20. The designer also calculated the weights of the individual parts and sub-
assemblies that he designed. The airplane center of gravity was calculated
by the Stress Section, using the figures given them by the detail designers.
21. Stress calculations were made according to the flI1 system (Rei^hs Luftfahrt
Ministerium). Airload calculations (Lastannahme) were made for various
flight conditions. x do not know the "g" loading to which the 478 was
designed, but recall that the maximum elevator hinge moment was 55000 kgm.
For each individual part the load (Kraft, P) for the moat critical condition
was multiplied by a safety factor to get the design load (Relastung).The
safety factors were (per ELM) 1'.8 for the fuselage and wings, 2.0 for land-
ing Sear, and 2.14 for flight control linkage.
22. For aluminum parts, ultimate tensile strengths were used in the calculations.
For steel, the yield strengths were generally used. Ultimate or some per-
centage of ultimate was often used when a steel part was either not critical
orthe saving in weight was worth the cost of a special static test to
prove the part, The results of all static tests were required to equal
the design load (tlelaetung).
Comments: In contrast to Source's'amasing knowledge of teohnical
matter;, he was extremely reluctant to, discuss personalities and professed
little knowledge of the backgrounds of the various technicians. This` he u.).i.d.
wa:,tn~ +to to the' fact that many of the key people had coma from feinkel. or s,,:^rrie
other r:irrf risset:tor. rLr. d he did not know them prior to 1946. He i neiv vot ? rr
f irs1, r,trnw c . Only in a few instances did he know whether peruons hr~.el ,,t7,7,,7~ ,,,; ?.
in p +ln4 eco or, not, s,a;~?irg t at it did not make any difference as lon>; .t+y ,t,
rnt:ry c?titci do the ,fob. Fe never made a derogatory remark raho'.it t ..'e rti~i.l 1,t ,;
,\f. 1J a riormans Ind of 1.de rn had arythirig hood to say ah9ut the
t,rter m.ood,r and di. scour'a(red, w}HH.rb is nriderstandahle con.eiderin-? tlb" rn, ,t;
!?b:Lra is t.bo f rt)?, t,i.tne in six: ye,are 111ha.at be has made a new rtRr*,.
wui irrproveri. only. Y) : 'vi.tch1nz ?t lie conversation t;!) terl
~
)'4,afem.'.ntn Chill`'",:?rnirz varions persons, Abilities r}t' F.J r ; n4"i nonce
were nirkod up la.rgely du.rinrr te.at,nicl+:l i.o 01'=:-)
in ':onr-mrf:fr i:o d
rrt r^r ,Y :.^r1,t: i
t r r ^.i.,:. * l; i rWr v
irect questions. It is J"w:lirhvod 'that t, a
on ., i,r, ri,.!our t?e in a:, fr+r as available. J t ;in rJ,?;t,} i?I"t;.1. it, 1'!."-1 J,..i?
~ou f .d Ad mucl, t:,7 t et: ncintraired above. >nurcr~ ~^ aintt.t}i. a I,t;
an .?,r, n
rl:t chart, for. 1;hr? JunlcerrB irnup
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