THE ROYAL ARTILLERY INSTITUTION. 
105 
Projectile. 
§ 
I 
Dia¬ 
meter. 
ft 
£ 
lbs. 
in. ! 
cast-iron 
150 
10-35 
Remarks. 
150-pr. 
shot 
wrought 
iron. 
10*364 
68 -pr. 
wrought 
iron. 
east 67 
iron. , ( 
sures 3’2", and the diameter' 
tively '8" and -9", and one in the upper row 
60* nil. nil. nil. (3' 4" from the point of impact) started J-"; 
also one in the lower row, under the shot- 
hole, started -3". Plate very badly welded, 
and much laminated. The shot broke up. 
At the back, large hole, daylight through; 
vertical rib broken clean through, and bent 
back 2 f 6" from target; large portions of 
skin, bolt-heads and rivets broken away; 
cone of shot found lying 15' in rear; other 
fragments of shot and plate driven through; 
shreds and splinters of teak backing pro¬ 
truding. The hole and rent, 16" x 2' 6". 
Entire bulge, 3' 6" wide. 
Struck the centre plate 2' 3" from the bottom, 
1 '6" from the right side of the plate, 
and 3'11" from the hole made by No. 1 
shot. The shot remained in the plate. The 
target was tremendously shaken. The 
centre plate had now buckled forward 3*3" 
at the end by the port-hole, and was driven 
in 6-5" at the outer end. The whole of the 
backing of the target, on the right side, 
was driven back, the space being 6" at the 
top, and 9-25" at the bottom of the upper 
plate. The upper plate was unsupported 
by any—for a length of 6' from the right 
side. The teak backing, through which the 
bolts passed, was cracked quite through. 
The diameter of the hole made was 13-5", 
and the bulge on the plate was 2-5" in an 
area of 3', whereas inNo.l round the bulge 
in the plate was only *5" in a smaller area. 
A narrow crack extended from the top of 
the hole made by No.l round to the top of 
the plate. At the back two vertical ribs 
and angle-irons broken, one on each side of 
blow; bolt started and driven out V 
skin two small cracks at bolt-hole; three 
bolt-heads off; two in centre plate, one in 
top. Iron shelf-piece loosened and partly 
bent out. Bulge of plate 4 x 2'. Interior 
damage less than in No. 1, but distributed 
over a block of masonry several feet in rear, 
on which leaned the intervening beams be¬ 
tween it and the top of target. The entire 
breech of the 12 -ton gun was blown out at this 
round, and fell 12 yds. to the rear, rebounding 
21 yds. further to the rear, where it remain¬ 
ed. A14" baulk of timber in front of the 
platform, to which the tackle for checking re¬ 
coil was secured, was broken through. In 
considering the damage done to the target 
by this round, the accident here recorded 
must be taken into account, as the loss of 
W.A. work must have been considerable. 
16 20' „ 2-4 Struck the lower plate 10" from the bottom, 
and under the port-hole. Diameter of indent, 
9“5"; area of bulge in plate, 19" x 18"; 
depth in area, -6". One small crack on 
indent. At the back, one rivet head off. 
No other damage visible. 
3 * Struck the lower plate just above the last 
round. The indent of last round now mea- 
of the two indents is 1'3" x 9". The area of bulge 21". No 
radiating cracks and no damage to the fastenings; but the plate had very slightly started 
at the top by the port-hole. At the back, no damage visible. _ 
