JAPANESE
SIZE
OF SHELLS
There are
various sizes of aerial round shells. Japanese use
the "Sun"
unit of measurement
to
classify their shells by size.

1sun =
about 3.3 centimeters. There are‚ Qsun shell (6 centimeters
across) to 3, 4, 5, 6, 7, 8 sun shell. Next,10 sun=1 shaku.
So 30 centimeters shell=12 inches shell called Shaku-dama in
Japanese.
Most foreign countries adopt inch measurement units.
There are
shells ranging
from 2
inches
all the way up to
24 inches
in size.
The largest shell ever fired was a 48" in size. Shells are
classified by the inside diameter of the mortar they should be fired
from.
This
photo shows a 'monument' of various sizes of HDPE mortar guns
made
located in Japan. (click on photo to enlarge)
HOW HIGH DO THEY GO?

Japanese Round Shell
Specification Table
Size
(inches) |
3
|
5
|
6
|
6.5
|
8
|
9
|
12
|
24
|
36
|
Across
(centimeter)
|
8.5
|
11.5
|
14.2
|
16.7
|
20.5
|
23.5
|
29.5
|
58.5
|
88.5
|
Weight
(kilogram)
|
0.2
|
0.5
|
1.3
|
2.0
|
3.0
|
4.8
|
8.5
|
70
|
280
|
Height
(meter)
|
120
|
160
|
190
|
220
|
250
|
280
|
330
|
500
|
600
|
Across of
bloom
(meter)
|
60
|
130
|
170
|
220
|
240
|
280
|
320
|
480
|
500
|
This table shows the size, height,
and blooming across size of each
different size
shells.Below
is a photo featuring Chinese shells ranging from 2" to 16"
in size.
