7th Divisional Artillery Operation Order 18 June 1916

7th Divisional Artillery Operation Order 18 June 1916

Headquarters Divisional Artillery 7th Division stamp.

SECRET
*=*=*=*
Copy No 10
OPERATION ORDER No 11.

by

Brigadier-General J.G. ROTTON C.M.G.

Commanding R.A., Seventh Division.

Headquarters R.A.
18th June 1916
Issued at 9 p.m.,

Copy No 1. B.G., R.A. XVth Corps.
2. 7th Division “G”
3. 14th Brigade R.H.A. (4 copies)
4. 22nd Brigade R.F.A. (5 copies)
5. 35th Brigade R.F.A. (5 copies)
6. 80th Brigade R.F.A. (4 copies)
7. 81st Brigade R.F.A. (4 copies)
8. XV Corps H.A.
9. R.A. 18th Division.
10. R.A. 21st Division.
11. 20th Infantry Brigade.
12. 22nd Infantry Brigade.
13. 91st Infantry Brigade.
14. 50th Infantry Brigade.
15. C.R.A.
16. War Diary.

INSTRUCTIONS FOR BOMBARDMENT AND BARRAGES

Instructions and explanatory notes.

Table “I” 4.5” Howitzer bombardment “Z” day.
Table “I” (2) 4.5” Howitzer barrages “Z” day. (Tracings to units concerned)
Table “J” 18 pr. Bombardment and barrages. (Tracings to units concerned)
Table “K” Concentrated bombardments.
Table “L” Ammunition 4.5” Howitzers.
Table “L” (1) Ammunition 18-pounders.
Table “M” 9.45” Heavy Trench Mortal Bombardment “Z” day.
Table “N” 2” Trench Mortar Bombardment “Z” day.

S.G. Boddam-Whetham
Captain R.A.
Brigade Major R.A. 7th Division.

SECRET
*=*=*=*=
INSTRUCTIONS FOR FORTHCOMING OPERATIONS
-and-
EXPLANATORY NOTES

NOTE: – THE DATE OF THE ASSAULT IS REFERRED TO AS “Z” DAY. DAYS PRECEEDING “Z” DAY WILL TAKE THE LETTERS IN REVERSED ALPHABETICAL ORDER e.g. “Y” “X” “W” etc. THIS WILL APPLY IN ALL FUTURE OPERATION INSTRUCTIONS.

1. INTENTION.
(a) In conjunction with the French, who are operating from MARICOUT southwards, the Fourth Army will assume the offensive on “Z” day, and will establish as a primary objective a line from MONTAUBAN through POZIERES and northwards passing to the south of MAMETZ WOOD.
(b) The portion of this line south and south-west of MAMETZ WOOD is allotted as the objective of the XVth Corps.
The attack will be developed to the north and south of FRICOURT VILLAGE and FRICOURT WOOD by the 21st and 7th Divisions respectively, with the object of isolating the triangle formed by these localities, which will be afterwards dealt with in a subsidiary operation.
(c) The task of the 7th Division is to clear the trenches in front and seize and occupy the spur from the track at S.25.b.58.32. to WILLOW AVENUE at X.29.b.5.6.
(d) Immediately on the right of the 7th Division the left Brigade of the 18th Division will advance simultaneously and prolong the above-mentioned line towards MONTAUBAN. The left of the 18th Division will be in the trench running from S.25.b.36.90. to S.25.b.90.45.
(e) On the left the 21st Division advancing on the north side and clear of FRICOURT VILLAGE and WOOD, will join hands with the 7th Division at WILLOW AVENUE, X.29.b.5.6. and prolong the line northwards through the QUADRANGLE towards CONTALMAISON.

Boundaries – The boundary between our right and the 18th Division will be from F.12.c.3.9. to F.6.a.75.15., track at F.6.a.8.9., thence along track running north north-east to S.25.b.58.32.
The dividing line between the 7th and 21st Division will be WILLOW AVENUE STREAM.

2. 7th DIVISION PLAN.
(a) Distribution. The 7th Division will be distributed as follows:-
On the right – the 91st Infantry Brigade from F.12.c.3.9. to F.11.d.2.7. In the centre – the 20th Infantry Brigade from F.11.d.2.7. to F.10.c.65.35 (east end of BOIS FRANCAIS craters)
On the left – the 22nd Infantry Brigade, less 2 battalions and two sections Machine Gun Company, F.10.c.65.35 to F.9.a.62.58.
(b) Main Attack. The main attack will be carried out by 91st and 20th Infantry Brigades.
(1) The dividing line between the 91st and 20th Infantry Brigades will be – from our trenches at point F.11.d.2.7. to the road junction F.5.c.45.35. in MAMETZ immediately south of the church, thence along the road running north past the Church to the northern outskirts of the village, thence to the eastern edge of BUNNY WOOD.
(2) The attack of the 91st Infantry Brigade will be divided into three phases, the completion of each phase being marked by the capture and consolidation of a definite objective.
The first objective will be the seizure of BUCKET trench, BULGAR ALLEY to DANZIG ALLEY, DANZIG ALLEY and the northern and north-eastern edge of MAMETZ.
The second objective will be FRITZ trench, VALLEY trench, and BUNNEY ALLEY.
The third objective will be the whole of the final objective allotted to the Division.
(3) The 20th Infantry Brigade will form a defensive flank facing north-westwards to cover the advance of the 91st Infantry Brigade and will seize the north-eastern outskirts of MAMETZ, ORCHARD ALLEY to its junction with Apple ALLEY, APPLE ALLEY to our front trenches.
(c) Subsidiary attack. The 22nd Infantry Brigade will clear the German trenches north of BOIS FRANCAIS at an hour to be decided later when the main attack has reached its final objective. This operation will take place in conjunction with 2 battalions of the 50th Infantry Brigade who will clear FRICOURT VILLAGE and WOOD.

ACTION OF ARTILLERY and “CO-OPERATION”
—————–

3. Artillery.
(a) A preliminary bombardment will be carried out on “U”, “V”, “W”, “X” and “Y” days. Wire will be cut during all five days.
From the night U/V, to the night Y/Z a continuous bombardment will be carried out.
2” Trench Mortars will be used for wire cutting on “U” day and afterwards as required.
240 m.m. Trench Mortars and 3” Stokes Mortars will be used as required from “V” day onwards.
(b) During the advance of the Infantry a barrage of Artillery fire will be formed in front of the infantry according to the timings shewn on the tracings issued to those concerned.
The lines shewn on the tracings indicate the nearest points on which guns will fire up to the hour indicated. At the times shewn heavy guns will lift their fire direct to the next barrage line. The Divisional Artillery will move their fire progressively at the rate of 50 yards a minute.
Should the infantry arrive at any point before the time fixed for the barrage to lift, they will wait under the best cover available and be prepared to assault directly the lift takes place.
(c) The Divisional Artillery will be grouped as follows after the completion of the preliminary bombardment:-
“A” Group. 14th Brigade R.H.A.
H.Qrs with 20th Infantry Brigade Hd.Qrs.
“F” Battery R.H.A.
“T” Battery R.H.A.
B/81 Battery (81st Brigade, 17th Division) attached
C/81 Battery (81st Brigade, 17th Division) attached
D/14 Battery R.H.A.

(20 – 18-prs. 4 – 4.5” Howitzers)

“B” Group 22nd Brigade R.F.A.
H.Qrs with 91st Infantry Brigade H.Qrs.
104th Battery R.F.A.
105th Battery R.F.A.
106th Battery R.F.A.
A/81 Battery R.F.A. (17th Division) attached.
35th Battery R.F.A. (Howitzer)

(22 – 18-prs. 4 – 4.5” Howitzers)

”C” Group 35th Brigade R.F.A.
H.Qrs with 22nd Infantry Brigade H.Qrs.
12th Battery R.F.A.
25th Battery R.F.A.
58th Battery R.F.A.
31st Battery R.F.A. (4.5” howitzers)

(18 – 18-prs. 4 – 4.5” howitzers)

Reserve Group. Headquarters GIBRALTAR.
A/80 Battery R.F.A. (17th Division) attached
B/80 Battery R.F.A. –do- attached
C/80 Battery R.F.A. –do- attached.
D/80 Battery R.F.A. (hows) –do- attached.

(12 – 18- prs. 4 – 4.5” Howitzers)

4. Instructions as to Re-bombardment.
(a) If any point or part of the enemy’s lines holds up our Infantry advance to such an extent that it is necessary to bombard again that portion of the enemy’s defence, application for re-bombardment will be made to Divisional Headquarters.
(b) The Divisional Commander will fix the zero hour at which the re-bombardment will commence. The normal re-bombardment will last 30 minutes, of which the last five minutes will be intensive. The bombardment will lift at 0-30, at which hour the infantry will assault. It is to be thoroughly understood by all ranks that the only orders regarding re-bombardment that will be issued will be a message naming the hour fixed for zero (i.e. the hour at which the re-bombardment will commence)
(c) In the event of it being found impossible by the Artillery to begin the re-bombardment at the hour fixed as zero, either the re-bombardment will begin as early as possible after zero hour and cease at 30 minutes after zero, the last five minutes being intensive, or a fresh zero hour will be fixed.

NOTES
It is essential that all concerned make themselves thoroughly acquainted with the various objectives allotted to the attacking infantry and the successive barrages which are required. There must be no pause in the fire when lifting from one barrage line to another. Batteries firing frontally will lift 50 yards a minute, commencing at the time stated in the programme, until reaching the next barrage. Batteries firing in enfilade will move their fire gradually to the next barrage by a switch equivalent to 50 yards a minute, or, if necessary, a combination of switch and range.

It must be impressed on all ranks that a sudden cessation of fire on any trench gives warning of the attack, and that too great stress cannot be laid on the importance of keeping up a steady pace of fire which will move forward ahead of, and at the same rate as, our infantry.

As regards the ring round battery barrage areas, it will be understood that the colour of the ring denotes the time at which the battery must lift off that area. Some batteries e.g. the 12th Battery, fire on the same area during two periods, and therefore the ring round its area is the colour given to all batteries which lift at the end of the second period.

Similarly, the second lift of B/80 takes it on to the area upon which it remains for the last lift.

————————————–

Machine gun emplacements, O.P’s, Trench Mortars and strong points in the enemy’s lines will be attacked by 4.5” Howitzers and 18-prs using H.E. at such times as they are not engaged on other work. Table “F” of the scheme, issued on the 14th, shewed the division of the whole area between 18-pr batteries for this purpose.
As regards Howitzers.
The 35th Battery will engage (a) of table “F”
The 31st and D/80 “ “ (b) of table “F”
And D/14 Battery “ “ (c) of table “F”

Table I
-1 hour 5 mins to 0.0

4.5” Howitzer bombardments “Z” day.

D/14 Battery SUNKEN ROAD TRENCH F.9.b.35.70 – F.9.d.8.8.
SUNKEN ROAD from front line to F.4.c.2.2.
KITCHEN TRENCH F.9.b.6.8. – F.9.b.2.2.
COPPER TRENCH F.9.b.73.98. – F.9.b.8.6.
THORN LANE F.4.c.2.2. – front line F.9.b.50.35.
THE RECTANGLE
RECTANGLE SUPPORT.

31st Battery BOIS FRANCAIS TRENCH F.9.d.8.8. – F.10.c.95.65.
BOIS FRANCAIS SUPPORT F.9.b.85.10. – F.10.d.10.90.
LIME TRENCH F.9.b.85.18. – F.10.a.34.37.
ORCHARD ALLEY from front line to its junction with PAPEN TRENCH at F.10.a.60.65.
KIEL TRENCH from junction with BOIS FRANCAIS TRENCH at F.10.c.67.52. to F.10.d.00.60.

35th Battery HIDDEN LANE from F.10.c.67.52. to F.10.b.07.20.
HELIGO LAND from F.10.d.0.6. to F.10.b.07.20. and trenches F.10.c.9.8. to F.10.d.08.80.
F.10.c.88.92. to F.10.d.10.92.
F.10.c.9.8. to F.10.a.95.10.

Mark trench F.10.a.65.17. to F.10.a.95.10.
LUKE trench F.10.a.60.05. to F.10.a.95.10.
JOHN trench F.10.a.60.01 to F.10.c.88.99

D/80 Battery SUNKEN ROAD from F.4.c.2.2. to F.10.b.2.7.
ORCHARD ALLEY from junction with PAPEN trench at F.10.a.60.65. to F.10.a.9.9.
PLUM LANE from F.10.a.99.82. to F.10.b.07.20.
DANTZIG trench from F.10.b.12.35. to F.10.b.50.46.
APPLE ALLEY from F.10.a.68.78. through F.10.a.6.2. to F.10.c.67.52.
Traversed trench from F.10.a.60.15. to F.10.a.42.39.

–oOo—

Table “I” (2)
4.5” Howitzer barrages “Z” day.
“B”
Red Ring Lift 0-15 minutes
Battery Target.

D/14 Area enclosed by F.9.b.35.60. – F.3.d.8.1. – F.4.c.7.3. –F.10.a.2.8.
D/80 Area enclosed by F.9.b.6.2. – F.10.c.0.5. – F.10.a.5.2. – F.10.a.0.6.
31st F.5.c.0.4. – F.5.c.6.4.
35th F.5.c.6.4. – F.5.d.2.7.

“C”
Green Ring Lift 0-55 minutes

D/14 F9.b.3.8. – F.9.b.8.1.
D/80 F.3.d.7.1. – F.9.b.99.45.
31st F.5.b.1.1. – F5.b.4.4.
35th X.29.b.5.5. – X.29.d.1.8.

“D”
Brown Ring Lift 2-25 minutes

D/14 F.9.b.3.8. – F.9.b.8.1.
D/80 F.3.d.7.1. – F.9.b.99.45.
31st X.29.c.9.9. – X.29.c.0.6.
35th X.29.b.5.5. – X.29.d.1.8.

“E”
Black Ring Until further orders.

D/14 F.9.b.3.8. – F9.b.8.1.
D/80 F.3.d.7.1. – F.9.b.99.45.
31st F.4.a,1.6. – F.4.a.8.8.
35th X.23.d.3.7. – X.24.c.0.7.

18-pr Bombardment and Barrage on “Z” day.

Table “J”

“A” “B”
Start -1 hour 5 mins.

Battery Blue Ring Lift 0.0 mins Red Ring. Lift 0.15.

25th F.12.a.9.4. – F.12.a.25.14. F.6.c.85.76. – F.6.c.1.6.
104th F12.a.53.73. – F.11.b.9.5. F.6.c.1.5. – F5.d.65.08.
105th F.12.a.2.2. – F.11.b.53.21. F.6.c.25.45. – F5.d.60.50.
106th F.11.b.53.21. – F11.c.96.98. F.5.d.65.08. – F.11.b.05.85.
58th F.11.c.96.98. – F.11.c.24.99. F.11.b.05.85. – F.11.a.22.70.
“F” F.11.a.46.22. – F.11.c.0.9. F.11.a.22.70. – F10.b.67.43.
C/80 F.11.c.2.9. – F.10.d.65.30. F.10.b.2.4. – F.10.c.7.6.
B/80 F.10.d.99.99. – F.10.d.70.46. F.10.b.67.43. – F.10.a.95.02.
“T” F.10.d.45.50 – F.10.c.82.80. F.10.c.43.85. – F.9.b.82.12.
A/80 F.5.c.8.1. – F.5.d.0.9. F.5.c.8.1. – F.5.d.0.9.
12th F.5.c.05.05 – F.5.c.36.95. F.5.c.05.05 – F.5.c.36.95.
B/81 X.29.d.4.2. – F.5.b.10.16. X.29.d.4.2. – F5.b.10.16.
A/81 X.29.b.5.5. – X.29.d.6.4. X.25.b.5.5. – X.29.d.6.4.
C/81 X.29.a.6.4. – X.29.d.0.3. X.29.a.6.4. – X.29.d.0.3.

Table “J” (continued)
“C” “D”

Battery Green Ring Lift 55 mins Brown Ring. Lift 2 hrs 25 mins

25th F.6.a.95.15. – F.6.a.32.20. S.25.d.6.7. – X.30.c.7.7.
104th F.5.b.88.85. – F.5.b.44.83. X.29.d.5.6. – X.30.c.15.80.
105th X.29.d.4.2. – F.5.b.10.16. X.29.d.5.6. – X.29.c.50.40.
12th F.4.b.74.32. – F.4.d.16.92. F.4.a.3.1. – F.4.b.10.60.
106th F.6.a.32.20. – F.5.b.85.60. X.30.c.7.7. – X.30.c.15.80.
58th F.5.a.42.45. – F.4.b.74.32. X.28.d.7.1. – F.4.b.05.85.
“F” F.4.c.6.4. – F4.d.2.9. F.4.a.0.0. – F.4.c.55.45.
C/80 F.10.a.2.7. – F.10.a.2.0. F.10.a.2.7. – F.10.a.2.0.
B/80 F.4.c.6.4. – F10.a.2.7. F.4.c.6.4. – F.10.a.2.7.
“T” F.10.c.43.85. – F.9.b.82.12. F.9.b.82.12. – F.9.b.35.75.
A/80 F.5.b.18.15. –F.5.a.5.4. Ceases firing.
B/81 X.29.c.5.5. – X.28.d.5.5. X.28.d.7.1. – X.29.c.45.30.
A/81 X.29.b.5.5. – X.29.d.6.4. X.29.b.5.5. – X.29.d.6.4.
C/81 X.29.a.6.4. – X.29.d.0.5. X.29.a.6.4. – X.29.d.0.5.
“E”
Black Ring. Until further orders.
25th X.29.b.7.4. – X.23.d.4.3.
104th X.23.d.4.3. – X.23.b.2.2.
105th X.30.a.3.9. – X.29.b.8.5.
12th F.4.b.1.6. – F.4.a.3.1.
106th Ceases firing.
58th Ceases firing.
“F” F.4.a.0.0. – F.4.c.55.45.
C/80 F.10.a.2.7. – F.10.a.2.0.
B/80 F.4.c.6.4. – F.10.a.2.7.
“T” F.9.b.82.12. – F.9.b.35.75.
A/80 Ceases firing.
B/81 Ceases firing.
A/81 S.25.b.6.5. – X.30.a.8.6.
C/81 X.30.a.6.9. – X.30.a.5.5.

Table “K”
Concentrated bombardments during “V” “W” “X” and “Y” days

Concentrated bombardments will take place at the following times. For description see below:-

“V” day 3-00 p.m. – 4.20 p.m. No 1 bombardment.
“W” day 8-00 a.m. – 9-20 a.m. No 2 bombardment.
“X” day 3-30 a.m. – 4-50 a.m. No 2 bombardment.
“X” day 5-30 p.m. – 6.00 p.m. No 3 bombardment.
“Y” day 5-00 a.m. – 6.20 a.m. No 3 bombardment.
”Y” day 3-00 p.m. – 4-20 p.m. No 1 bombardment.

No 1 Bombardment.
Battery. Target.

A/80 F.10.d.8.5. – F.11.c.2.8.
C/80 F.11.c.2.8. – F.11.b.0.0.
31st F.10.d.6.5. – F.10.d.9.8.
58th F.10.b.8.7. – F.11.a.2.7.
35th F.11.a.2.7. – F.11.b.15.93.
C/81 F.10.d.7.6. – F.11.a.1.0.
B/80 F.10.d.4.5. – F.10.b.90.25.
D/14 THE HALT – F.11.b.42.68.

No 2 Bombardment.
Battery. Target.

C/80 F.10.c.9.8. – F.10.d.6.5.
B/80 F.10.b.67.42. – F.10.b.82.73.
31st F.10.b.07.20. – F.10.b.15.65.
C/81 F.10.d.5.8. – F.10.d.90.95.
58th F.10.b.82.73. – F.11.b.15.93.
35th F.10.c.8.6. – F.10.d.2.4.
A/80 F.10.c.9.8. – F.10.d.6.5.
D/14 F.10.b.3.4. – F.10.b.9.3.

No 3 Bombardment.
Battery. Target.

58th F.10.b.2.4. – F.10.b.9.3.
D/14 F.11.b.42.68. – F.12.a.13.58.
B/80 F.11.b.42.68. – F.12.a.13.58.
C/80 F.4.d.35.31. – F.4.d.95.00.
A/80 F.10.b.82.73. – F.11.b.15.93.
31st F.10.a.6.2. – F.10.c.70.65.
C/81 F.11.b.0.0. – F.11.b.9.3. (DANTZIG TRENCH)
35th F.11.a.9.5. – F.11.b.42.68.

Table “L”
AMMUNITION.
4.5” Howitzers.

For the bombardment on “V”, “X”, “W” and “Y” days the rate of fire will be governed roughly by the amount of ammunition allotted in “Notes on calculation for ammunition” in Scheme issued June 14th 1916.
For intense bombardments, batteries will fire at the rate of one round per gun per minute for 10 minutes, afterwards decreasing to ½ round per gun per minute.
Ammunition for “Concentrated Bombardments” (See Table “K”) is not included in estimate of ammunition required for each days bombardment.
Rate of fire for concentrated bombardment will be half the rate for intense bombardment.
In addition to tasks enumerated, the 35th Howitzer Battery will be given 750 rounds S.K. ammunition for special purposes. Instructions as to objectives will be forwarded later to the 22nd Brigade R.F.A.
————————-

Table “L” (1) 18-pounders

During intense bombardments Batteries will fire at the rate of 1 round per gun per minute for five minutes, afterwards decreasing to half a round per gun per minute, and increasing again to 1 round per gun per minute for the last five minutes.
Instructions regarding the action of 18-prs during discharges of gas and smoke will be issued separately, but rate of fire will be governed by the rules here laid down.

Table “M”
9.45” Heavy Trench Mortar Bombardment ”Z” day.
-1 hour 5 minutes to zero.
——————————–

Battery
V.7. DANUBE TRENCH from F.10.d.65.30. to F.11.a.35.00.
DANUBE SUPPORT from F.10.d.65.55. to F.11.a.15.07.
TIRPITZ TRENCH from F.10.d.65.85. to F.11.a.05.20.

V.17 (Right section)
SHRINE ALLEY from F.10.d.40.85. to F.10.b.85.25.
HIDDEN WOOD.
V.17 (Left section)
AEROPLANE TRENCH.
RECTANGLE.
ORCHARD ALLEY from F.10.c.15.95. to F.10.a.45.40.

AMMUNITION 10 rounds per gun.
-*-
9.45” Heavy Trench Mortar Barrage “Z” day.
Zero to 0.10 1 round per gun.

V.7. HIDDEN LANE.

V.17. (Right section) HIDDEN WOOD.
(Left section) As for bombardment.
0.10 to 2.25 10 rounds per gun

V.7. Does not fire after 0.10

V.17. SUNKEN ROAD TRENCH.
AEROPLANE TRENCH.
RECTANGLE.
COPPER TRENCH.

Table “N”
“2” Trench Mortar Bombardment “Z” day.
-1 hour 5 minutes to zero.

Battery

X.17 Front line F.9.b.6.2. to F.9.d.95.70.
Y.17 F.9.d.95.70 to F.10.d.75.55.
Z.7 Left section KIEL TRENCH.
Y.7 F.10.d.20.40 to F.10.d.65.30.
Z.7 Right section F.10.d.95.65.
F.11.c.14.68.
X.7 Area as for preliminary bombardment.

AMMUNITION 30 rounds per gun if possible.
– * –
“2” Trench Mortar Barrage “Z” day.
Zero to 0.15
——————
Z.7., Y.7 and X.7. do not fire after zero.
X.17. From F.9.b.6.2. to F.9.d.95.70.
Y.17. From F.9.d.95.70. to F.10.d.45.65.

0.15 to 2.25.
——————
Y.17. Does not fire after 0.15.
X.17. From F.9.b.60.20. to F.9.d.95.70.

XV Corps message 17 June 1916

XV Corps message 17 June 1916

Messages and Signals form.

21st DIVL ARTILLERY

CA 46 17th

Please forward as early as possible total number of batteries (a) 18 pr (b) 4.5 How that in the event of assistance being required from either the 13th or 3rd CORPS during forthcoming operations could be brought to bear on these CORPS areas

15 CORPS ARTILLERY
3.30 p.m.

J.M.R. Harrison Major

XV Corps message 17 June 1916

XV Corps message 17 June 1916

Messages and Signals form

G.359 17th

Ref 21 Div O.O. 55 page three line seven. AAA. For X.22.c.65.71. read X.22.b.65.71.AAA

Added 34th Div DRAW, DASH, DIAL DEAL & Signals.

D.A.R.E.
10 p.m.
A.P. Lt. Col.

XV Corps Instruction 17 June 1916

XV Corps Instruction 17 June 1916
SECRET
15 CA/10/42.

USE OF LACHRYMATORY AND GAS SHELLS
U to Z Days
***********
Reference 15/CA/10/23 and 10/32 of 12th and 14th instants.
———————————————————————–

1. Lachrymatory and Gas shells can be most usefully employed for counter-battery work, interrupting communications, especially blocking communication trenches, and against billets, woods, villages and hollows.
2. The effect of the shells is very local, and a large number are required in one place to be of any real use.

3. 4.5” Howitzers.
(a) The bulk of the rounds should be kept for Z day, but there is no objection to a small proportion being used for special objects on the other days.

(b) The 4.5” Howitzers belonging to Divisional Artilleries and the Battery attached to the Heavy Artillery can fire –

on U to Y days, 800 yards from our line in any wind:
300 yards if the wind is blowing from our lines.,

on Z day, the same as regards distances and wind, but not later than 30 minutes before Zero on ground short of the final objective.

(c) The battery attached to the Heavy Artillery should use these shells chiefly for counter-battery work and to a less extent for barraging distant points.

4. The French 77 mm should be used freely on all days:-

On U to Y days, under same conditions of wind as for 4.5” Howitzers.

On Z day, beyond the final objective. As the Infantry advance near to this, the distance beyond the final objective must be increased.

5. A third of these shells for the 4.5” Howitzers should be retained for further operations.

E.W. Alexander
Brigadier General., R.A., XV Corps
17th June 1916.

R.A. forwarded AP

21 Divisional Artillery Instruction 17 June 1916

21 Divisional Artillery Instruction 17 June 1916
SECRET.
21 Div.
G.330

62nd Inf. Bde.
63rd : :
64th : :
Div. Art.
Div. Eng.
14 N.F. (Pioneers)
Signals
“Q”
A.D.M.S.
A.P.M.
C. Comdt.
D.A.D.O.S.
7th Div.
34th Div.
17th Div.
50th Bde.
—————–
Attached is forwarded for information.
5,000 Flares are being issued to the Division.

They will be allotted as under:-
62nd Inf. Bde. – 1,000
63rd : : – 2,000
64th : : – 2,000

A. T. Paley
Lieut-Colonel,
General Staff,
21st Division
17/6/16

APPENDIX N.

COMMUNICATION WITH CONTACT AEROPLANES.
————————————————————————-

1. On day Z flares will be lit by infantry as follows:-
(a). On reaching the first objective.
(b). On reaching the second objective.
(c). During the third phase on reaching the East edge of FRICOURT VILLAGE and ROSE TRENCH (F.4.c.35.60 – F.4.d.06.02)
(d) All along the line of the most forward infantry at the following hours:-
9 a.m.
1 p.m.
5 p.m.
9 p.m.

2. (a) 3 aeroplanes will be detailed for contact work – Type Morane parasol – Special markings – a broad black band under left hand plane. One contact aeroplane at a time will be in the air.
(b) Information obtained and messages received will be transmitted at once by the aeroplanes by wireless to Corps Headquarters.
(c) Contact aeroplanes will drop messages at Corps H.Q. shewing the situation as known to them:-
(i) At half time during their tour of duty.
(ii) On the return journey after completing their tour of duty.

3. The Battalion and Brigade Call letters for signalling to aeroplanes and No 3 Kite Balloon Section, are those issued with XV Corps N0. 88 G. dated 15th June 1916.
Signals to aeroplanes will be sent by Infantry Brigade and Battalion H.Q.
Signals to No 3 Section Kite Balloon will be sent normally by Infantry Brigade H.Q. only, but in case of emergency Battalion H.Q. and O.P. “C” in PERONNE AVENUE can also call up the Kite Balloon. In signalling to the Kite Balloon, helio will be used by day, and lamp by night.
The Corps Balloon (No 3 Kite Balloon Section) will, at all times, fly its distinguishing pennant, which is black with white vertical strips 3’ broad alternately, commencing with black.
When the balloon is called up by any unit, the observer, on seeing the call, will haul the pennant up to the basket and as soon as he is ready to read will lower it again.
The message will be sent “DD – DD” and repeated until it is acknowledged by the pennant being hauled up and down three times in succession. By night, the Balloon will answer “R D” (received) or “I.M.I.” (repeat)
In signalling to the Kite Balloon, the same code will be used as is used for signalling to the contact aeroplane, vide XV Corps 133. G dated 31/5/16.

4. The following are the distinctive marks of Balloons attached to XV Corps and the neighbouring Corps:-

BY DAY. BY NIGHT.
Pennant hung 30’
below basket,

XIII Corps. Plain red. Succession of dots, every 10 minutes.
XV Corps. Black & White Succession of dashes every 10 minutes.
vertical stripes
3’ broad.
III Corps. Plain White. Succession of dots and dashes every 10 minutes.

5. When back communication from Brigades and Battalions by wire is cut, and a contact aeroplane is noticed flying very low, Brigade and Battalion H.Q. must be on the look-out to pick up any message intended for them which may be dropped by the aeroplane.

6. In addition to No 3 Kite Balloon Section, No 4 Army Kite Balloon will be attached to XV Corps and will be located near MORLANCOURT. This balloon will not be available for either Artillery work or Liaison with Infantry, but will be used for observation purposes only.
It will work on the fronts of the XIII and XV Corps from the BRIQUETERIE at MONTAUBAN to CONTALMAISON (exclusive).
Reports from this balloon will be forwarded to Corps H.Q.

General answering Pennant of:-
No 3 K.B. Section R.F.C. – XV Corps Balloon.
Flown when willing to accept messages

See illustration

21st Divisional Artillery Instruction 17 June 1916

21st Divisional Artillery Instruction 17 June 1916

Copy of XV Corps 15/C.R. 10/41 dated 16th June 1916.

ARM BANDS FOR ARTILLERY OFFICERS.
————————————————————–

1. Green arm bands, to be worn on the right arm below the elbow, will be issued to the Divisional and Heavy Artilleries by “Q” XV Corps.
2. During operations they are to be worn by,
(a) All Battery Commanders.
(b) All Artillery Officers who are acting as F.O.O’s or who go forward to reconnoitre.
(c) All R.A. liaison officers with the Infantry.
3. The object of the above is to enable Artillery Officers to be easily recognised in case the advanced Infantry wish for assistance or information from the Artillery.
The meaning of the band should be made known to all ranks of the Infantry.
4. The issue will be made on the scale of.,
Brigade or Group Commanders – 2 Bands.
Battery – 2 Bands.

————————————————

SECRET
21 Div
G.335.

For information.

A.T. Paley
Lieut. Colonel.
General Staff.
21st Division.

17.6.16.

DISTRIBUTION. copies
62 Inf. Bde. … 5
63 “ “ … 5
64 “ “ … 5
Div. Eng. … 4
Pioneers … 1
Bde. M.G. Coys. … 1
T.M. Batts. … 2
Div. Art. … 1

XV Corps memo to 21Div 17 June 1916

XV Corps memo to 21Div 17 June 1916

21st Div. Art.

Herewith 7 copies of Appendix I to my No 15 CA/10.23 dated 12.6.16. for distribution to Groups.
J.M.R.Harrison
Major
S.O. R.A. XV Corps
17.6.16

SECRET

Each Bde

Herewith a list of strong points etc. Batteries must pay special attention to such of these points as are included in the areas allotted for special tasks.

15 CA/10/23
Appendix 1
21st DIVISIONAL AREA.
2.
(a) Front Line System.

Front and Support Trenches F.9.b.02.75. – 3.c.69.36.
(WICKED CORNER – WING CORNER)
German TAMBOUR
Salient F.3.a.44
F.3.a.60.67.
X.27.b.66.
Salients X.26.d.78 and 98.
Trenches about X.27.c.39.
Salient X.26.b.82.
X.27.a.29.
Salient X.20.d.72, both faces.
X.21.c.32.
X.21.c.64.

(b) Second System.

ROSE COTTAGE.
S.W. edge FRICOURT WOOD
F.3.b.53.41
RED COTTAGE and trenches round.
Trench F.3.a.68 – b.18.
FRICOURT FARM
FRICOURT WOOD: re-entrant on N side and E end.
Trenches due E of POODLES
LOZENGE WOOD
Trenches X.27. central
SHELTER WOOD (including dug-outs on E and NE edge).
BIRCH TREE WOOD
ROUND WOOD
THE DINGLE
ROUND WOOD ALLEY.

(c) Points and trenches further back.

Trenches and Wood round X.29 central.
Corner of valley X.29.b.56
BOTTOM WOOD
QUADRANGLE SUPPORT
X.23.d.47.

16th June 1916.

15 CA/10/23 Appendix 1.

MACHINE GUN EMPLACEMENTS

21st DIVISION AREA

F.4.c.03.98
F.3.c.70.35.
93
91
X.27.c.40.15.
X.27.b.06.73.
X.26.b.85
72
X.21.d.43

16th June 1916.

15 CA 10/23
Appendix 1

OBSERVATION POSTS REPORTED (from May 8th 1916).
*************************************************

15-6-16 X.15.b.80.00.
26-5-16 X.8.c.03.82. Telescope seen being used.
26-5-16 X.8.c.35.85.
10-5-16 X.14.c.50.75 & 75.60. Photo. 3.c9 shows dug-outs
12-6-16 X.14.d.85.98. Slot in bank, either M.G. or O.P.
9-6-16 X.16.b.85.20. (CONTALMAISON CHATEAU) is used as an O.P., and has two apertures in tower, one above the other.
20-5-16. X.21.c.6.3. Suspected
10-6-16. X.21.c.1.4.
8-5-16 X.21.d.5.6. In daily use.
(12-5-16 82.62 Loophole (suspected O.P) Now screened
(22-5-16 83.58 with bushes & brushwood.
12-6-16 7.6.
26-5-16 X.27.a.35.90. Periscope seen.
(23-5-16 X.27.a.47.75. Telescope in use W. of WILLOW PATCH.
(10-6-16 “ -“-
(12-6-16 X.27.a.40.80. -“-
6-6-16 X.27.b.25. Smoke seen.
8-5-16 X.27.b.45.95.
17.54. In Daily use (smoke seen issuing on 6-6- 16)
3.8 Screened with bushes & brushwood.
17-5-16 F.3.c.52.72.
30-5-16. F.3.d.02.68. House in FRICOURT. Telescope seen in hole in the roof.
2-6-16 F.5.d.8.8. Suspected O.P.
8-6-16 F.6.c.90.05.
10-6-16 35.40
17-5-16 F.9.b.8.6. Officer seen observing.
88.82.
12-5-16 F.9.b.92.48. Observer seen with periscope.
25-5-16 60.30.
6-6-16 5.4. (SUNKEN ROAD TRENCH) Artillery Officer seen observing.
14-6-16 F.11.a.1.4. Sniper’s post or O.P. There is a slot 18” long and the place appears to be very strong.
8-5-16 F.3.d.9.7. O.P. suspected in FRICORT 2O left of Church. House with good roof; hole under roof.
18-5-16 S.14.d.6.5.
26-5-16 S.19.b.45.12. Men seen in tree, apparently observing with periscope.
4-6-16 S.25.b.5.3.
7-6-16 S.27.c.90.35. Telescopes used in roof of house in MONTAUBAN.
26-5-16 R.32.c.95.20.
12-6-16 A.1.d.05.50.
17-5-16 BAZENTIN LE PETIT CH Again in use.
19-5-16 FRICOURT CH TOWER
20-5-16 House immediately S of POZIERES Church.
25-5-16 CONTALMAISON Inside roof, close to Chimney
VILLA stack in S.W. end of House.

********************************

16th June 1916.

XV Corps Artillery Instruction 16 June 1916

XV Corps Artillery Instruction 16 June 1916

SECRET
15/CR 10/41
7th Divisional Artillery.,
21st Divisional Artillery.,
17th Divisional Artillery.,
Heavy Artillery XV Corps.,
XV Corps.
…………………………………

ARM BANDS FOR ARTILLERY OFFICERS.
****************************************

1. Green arm bands, to be worn on the right arm below the elbow, will be issued to the Divisional and Heavy Artilleries by “Q” XV Corps.
2. During operations they are to be worn by,
(a) All Battery Commanders.
(b) All Artillery Officers who are acting as F.O.O’s or who go forward to reconnoitre.
(c) All R.A. liaison Officers with the Infantry.
3. The object of the above is to enable Artillery Officers to be easily recognised in case the advanced Infantry wish for assistance or information from the Artillery.
The meaning of the band should be made known to all ranks of the Infantry.
4. The issue will be made on the scale of.,
Brigade or Group Headquarters,,,,,,,,,,,,,,,,,,,,,2 Bands. Battery,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,2 Bands.

E.W. Alexander
Brigadier General., R.A. XV Corps
16th June 1916

21st Divisional Artillery message 15 June 1916

21st Divisional Artillery message 15 June 1916

Message and Signals form

SECRET

XV CORPS R.A.

BM 104 15th CA 46

No 18 pounders can assist XIII Corps AAA Three (3) batteries 4.5 Howitzers can cover ground in rear of front line at extreme range. AAA With reference to III Corps area. AAA
(a) 12 (twelve) batteries can shoot on front line up to and including point X.21.c.07. AAA. 5 (five) batteries up to and including point X.20.b.52. AAA 2 (two) batteries up to and including point X.20.b.14. and 1½ (6 guns) up to and including X.20.a.36. AAA 10 (ten) batteries can cover Contalmaison Village. AAA 4 (four) batteries can cover Contalmaison Villa. AAA 3 (three) batteries can cover Pozieres. AAA
(b) The howitzer batteries can cover area in rear of front line east of the line Contalmaison – Contalmaison Villa.

21 Div Art.
J. Wellesley
**for BM