A.W.P.D.-42
REQUIREMENTS FOR AIR ASCENDANCY

Tab B
Operating Plans and Forces Required
B-1-a Air Offensive - Europe

European Theatre - Appendix G-V Transportation

LIST OF TARGETS

I. LOCOMOTIVE BUILDING PLANTS


Place

Name of Plant

Units

Percentage of Total

1.

Kassel

Henschel & Sohn

200

7.7

2.

Essen

F. Krupp

150

5.7

3.

Vienna (Floridsdorf)

Wiener Locomotiv Fabrik (Henschel)

150

5.7

4.

Wiener Neustadt

Wiener Locomotiv Fabrik (Henschel)


4

5.

Pilsen

Skodawerke

150

5.7

6.

Chrzanow

Locomotivewerke

150

5.7

7.

Lille

Cie de Fives-Lille

150

5.7

8.

Le Creusot

Schneider & Cie

150

5.7

TOTAL

1100

41.9

II. LOCOMOTIVE REPAIR SHOPS

No.

Place

Number of Locomotives

Percentage of Total

9.

Brandenburg-West

40

2.87

10.

Leinhausen

38

2.6

11.

Tempelhof

38

2.6

12.

Sebaldsbrucke

38

2.6

13.

Munchen-Freimann

34

2.34

14.

Schwerte

33

2.22

15.

Konigsberg

30

2.05

16.

Opladen

28

1.97

17.

Chemnitz

28

1.88

18.

Stargard

28

1.86

19.

Nurnberg

26

1.76

20.

Potsdam

26

1.76

21.

Leipzig

25

1.69

22.

Koln-Nippes

25

1.69

23.

Cottbus

24

1.63

TOTAL

461

31.52

III. MARSHALLING YARDS IN RUHR AREA (Typical)

No.

Place

Capacity – Wagons 24 hours

24.

Hamm

10,000

25.

Osnabrucke

2,100

26.

Soest

4,000

27.

Schwerte

2,200

28.

Koln-Kalk-Nord

4,500

29.

Koln-Nippes

3,500

30.

Ruhrort

5,000

31.

Dusseldorf-Derendorf

2,100

IV. VULNERABLE POINTS OF INLAND WATERWAYS

32.

Rothensee Ship Elevator on Mittelland Canal (Weser Elbe Section)

33.

Niederfinov Ship Elevator on Hohenzollern Canal

34.

Hohenwarthe Ship Elevator on Mittelland Canal (Weser Elbe section)

35.

Henrichenberg Ship Elevator on Dortmund Ems Canal

36.

Munster Locks and Aqueducts on Dortmund Ems Canal

37.

Olfen Canal Banks on Dortmund Ems Canal

38.

Minden Canal Banks on Mittelland Canal.

NOTES:

1. Germany’s greatest need in railroad transport relates to her lack of sufficient locomotives as evidenced by the steps which have recently been taken to make an enormous increase in the number of locomotives being built. Of all the locomotive works available in Germany and the occupied countries, the eight (8) plants given under Section I represent over forty (40) percent of the total productive capacity of all the works.

2. Due to increased wear and tear resulting from having to keep the locomotives in service for much longer periods than normal, the locomotive repair shops are considered to be extremely important objectives, particularly as they constitute points at which large numbers of locomotives are likely to be concentrated in various stages of repair. The fifteen (15) repair shops given in the second part of the schedule, represent over thirty (30) percent of the available repair shop capacity in Germany and the occupied countries.

3. A most important means of disrupting the transportation system is by concentrating attacks on carefully selected marshalling yards serving an industrial area. The yards serving the Ruhr area are considered to be the most vital in the present German war effort and, accordingly, the eight (8) yards given under Section III have been selected. If these yards are heavily attacked, the transportation system in this most important industrial area will be rendered chaotic.

4. As some twenty-five (25) percent of internal traffic in Germany is carried on inland waterways, these constitute important objectives and under Section IV of the notes seven (7) objectives are given the destruction of which would interfere very considerably with t he inland waterway traffic.

LOCATION OF TARGETS

BOMBER FORCE REQUIRED

1. DESCRIPTION OF TARGETS

(a) Locomotive Building Plants comprise heavy engineering workshops with foundries, forges, stamping plants, machine shops, etc., and there is no standardized size or layout for such works.

(b) Locomotive Repair Shops are similarly comparable to engineering works and comprise forges, machine shops, etc. The area of these plants varies from plant to plant.

(c) Marshalling Yards comprise receiving sidings, marshalling sidings, hump, control tower, etc., but whilst the last two are vital to the operation of the yard, they are of extremely small area. The greatest concentration of rolling stock is in the marshalling sidings and these may cover an area up to 2400 yards by 400 yards.

(d) Ship Elevators comprise heavy engineering constructions supported on latticed steel or concrete frameworks, but relative to the other targets the area is comparatively small being about twice the width of the canal and of a length suitable for accommodating a tug and short train of barges.

2. NUMBER OF DIRECT HITS AND TYPE OF BOMBS REQUIRED

(a) For the Locomotive Building Plants, it is considered that 500-lb. bombs are required and that a weight of attack should be such that not less than 100 of these bombs fall within an area of 1000' x 1000'.

(b) Locomotive Repair Shops call for a similar weight of attack, namely, such as will cause one hundred 500-lb. bombs to fall within an area of 1000' x 1000'.

(c) For Marshalling Yards where the destruction is concerned with railroad tracks and rolling stock thereon, it is considered that 300-lb. bombs can be used and that the weight of attack should be such that not less than 50 of these bombs fall upon every 1/10th of a square mile of marshalling yard area.

(d) For Ship Elevators, which are of heavy construction, it is considered that 1000-lb. bombs should be used and that the weight of attack should be such that not less than 6 of these bombs fall within a target area of 400 ft. by 100 ft.

3. NUMBER OF SORTIES AND BOMBER FORCE REQUIRED

Based upon detailed calculations, taking into account all operational factors involved in making attacks against highly defended targets with appropriate allowances for probabilities, aiming errors, losses, etc., etc., it appears that in order to attack the whole of 38 targets proposed and with the weights of attack set out above, the total requirements will comprise

9,348 SORTIES

In order to carry out these sorties in 35 operational days, a force of:-

314 BOMBERS

must be set up.