446:
261:
firing pin to function. This initiates the powder in the time-train ring and ignites the safety powder pellet, freeing the impact firing pin. Thus the fuze will function on impact if impact occurs before expiration of the set time. The time-setting can be eliminated altogether by turning the setting
273:
located in the nose of the projectile. An ignition cartridge then is pushed firmly into place in the base, and the desired number of small powder bags called "increments" are placed between the fins. The fuze is covered with metal foil and has a projecting wire loop which operates as a tear-wire to
214:
has been reported for the Type 3, and the sight for the Type 97 will not fit. The sight mount of the Type 3 is considered unstable. The total weight of the Type 3 is 167 lb (75.75 kg). The tube weighs 47 lb (21.32 kg), the bipod 25 lb (11.34 kg), and the base plate
294:
It is made of brass with the exception of the striker-detonator assembly. The nose, which screws into the body, is held by a set screw and contains the arming-firing device. A cavity behind the nose is covered with a perforated brass disk to distribute the flash from the
306:
action the plug is turned so that the flash travels directly from the detonator to the booster without passing through the delay train. Turning the plug clockwise 90 degrees makes the flash travel through the delay-train hole prior to reaching the booster.
435:
299:. In the bottom of the cavity is a cylindrical brass plug. This plug is pierced in the middle by a diametrical hole, while another hole, corresponding to the radius, enters at right angles.
227:
recently has been identified for use in the 81 mm mortars. Shaped like the usual types of mortar ammunition, this shell has three features which are new in
Japanese mortar shells.
935:
265:
Ammunition for the Type 3 mortar is issued disassembled, but with all components packed in the same box. To prepare a round for firing, the shipping plug is pulled from the
235:
charge is held in position by a base screw, instead of the usual "shotgun shell" type of cartridge. Increments are in circular bags placed around the tail, above the fins.
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428:
191:
of the Type 3 has the same length as that of the Type 97, but on the former there are two collars machined on the forward portion of the barrel for securing the
872:
277:
Misfires may occur with some frequency as a result of the base of the ignition cartridge remaining in the tube, preventing the next round from seating.
421:
1057:
165:
652:
199:
device. Rough cross-leveling adjustment could be made, however, by breaking the bipod support and moving the leg on the low side inward.
445:
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986:
657:
627:
690:
513:
857:
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173:
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991:
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made in 1943, Yokosuka Navy
Arsenal". Despite the Type designation, the mortar was believed to be a forerunner of the
953:
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920:
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761:
713:
695:
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536:
723:
280:
A Type 100 (1940) fuze for 81 mm mortar shells recently has been identified. The fuze has three main parts;
551:
253:
The fuse is set for a predetermined time by rotation of a time ring in the lower part of the fuze. On firing,
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832:
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ring off the scale. The fuze is not interchangeable with fuzes used in other 8 cm mortar ammunition.
184:
141:
45:
1024:
887:
804:
799:
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468:
455:
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897:
892:
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594:
589:
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579:
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518:
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The shell has 12 short tail fins, instead of the six long fins found on other
Japanese mortar shells.
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clamp. The bipod of the Type 3 is constructed of light-weight tubing, and there is no
148:. The Type 3 designation was given to this gun as it was accepted in the 3rd year of
1051:
528:
303:
203:
907:
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246:
145:
55:
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133:
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which occurred between late 1943 and early 1944. They are marked "Type 3 81 mm
302:
This second hole is filled with black powder which acts as a delay train. For
232:
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83:
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296:
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258:
242:
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179:
The general appearance of the Type 3 is identical with that of the
160:
Two specimens of the Type 3 81 mm mortar were captured in the
202:
The threads of the traversing and elevating mechanisms are of the
192:
417:
269:
cavity, and the fuze locked in place by screwing in the
176:, the base plate of which can be used with the Type 3.
140:
81 mm (3.19 in) infantry weapon used by the
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187:in 1937, (year 2597 on the Japanese calendar). The
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61:
51:
41:
36:
28:
21:
97:2 ft 5 in (736.6 mm) (baseplate)
429:
8:
873:Type 96 and Type 97 150 mm infantry mortar
436:
422:
414:
18:
396:Japanese Mortars and Grenade Dischargers
387:US War Department Special Series No. 19
356:Japanese Mortars and Grenade Dischargers
394:US War Department Special Series No 30
321:
78:4 ft 4.6 in (1,336.0 mm)
1063:World War II infantry weapons of Japan
366:
364:
350:
348:
346:
344:
342:
340:
338:
370:War Department Special Series No. 19
166:Gilbert and Marshall Islands campaign
7:
403:Handbook on Japanese Military Forces
354:War Department Special Series No 30
328:War Department Special Series No 25
206:type, rather than of the efficient
982:Type 10 and Type 3 rocket boosters
643:Type 41 15 cm/50 coast defense gun
638:Type 41 15 cm/45 coast defense gun
633:Type 41 15 cm/40 coast defense gun
223:The Type 3 8 cm (80 mm)
14:
210:type utilized in the Type 97. No
987:Type 21 and Type 22 rocket-bombs
449:Imperial Japanese Army artillery
444:
249:" type, is used with the shells.
681:Type 89 127 mm dual purpose gun
663:Type 41 20 cm coast defense gun
653:Type 41 12 cm coast defense gun
623:Type 11 12 cm coast defense gun
514:Type 98 20 mm AA machine cannon
858:Type 93 150 mm infantry mortar
696:Type 98 10 cm dual purpose gun
686:Type 10 12 cm dual purpose gun
658:Type 3 14 cm coast defense gun
628:Type 3 12 cm coast defense gun
618:Type 41 8 cm coast defense gun
484:Type 2 20 mm AA machine cannon
401:US War Department TM-E 30-480
1:
1058:World War II mortars of Japan
883:Type 97 90 mm infantry mortar
878:Type 97 81 mm infantry mortar
863:Type 94 90 mm infantry mortar
843:Type 11 70 mm infantry mortar
181:Type 97 90 mm Infantry Mortar
174:Type 97 81 mm infantry mortar
997:Type 4 40 cm rocket launcher
992:Type 4 20 cm rocket launcher
691:Type 3 8 cm dual purpose gun
241:A new type of fuze, of the "
215:95 lb (43.09 kg).
89:48 in (1,219.2 mm)
972:20 cm naval rocket launcher
547:Type 94 37 mm anti-tank gun
464:Type Ho 13mm AA machine gun
1084:
954:Type 90 240 mm railway gun
936:Type 99 10 cm mountain gun
931:Type 94 75 mm mountain gun
926:Type 41 75 mm mountain gun
921:Type 31 75 mm mountain gun
767:Type 89 grenade discharger
762:Type 10 grenade discharger
714:Type 31 75 mm Mountain Gun
542:Type 1 47 mm anti-tank gun
537:Type 1 37 mm anti-tank gun
274:aid in removing the foil.
183:which was accepted by the
70:167 lb (75.7 kg)
1068:Infantry mortars of Japan
724:Type 41 75 mm cavalry gun
389:Japanese Infantry Weapons
372:Japanese Infantry Weapons
101:
29:Place of origin
552:Type 97 automatic cannon
330:Japanese Field Artillery
231:The cylindrical initial
130:Type 3 81 mm mortar
1020:Type 45 240 mm howitzer
744:Type 95 75 mm field gun
729:Type 90 75 mm field gun
719:Type 38 75 mm field gun
1035:Type 96 24 cm howitzer
833:25 cm artillery mortar
815:Type 96 15 cm howitzer
810:Type 91 10 cm howitzer
795:Type 38 15 cm howitzer
790:Type 38 12 cm howitzer
785:Type 14 10 cm howitzer
185:Imperial Japanese Army
142:Imperial Japanese Army
46:Imperial Japanese Army
1025:Type 7 30 cm howitzer
888:Type 98 320 mm mortar
805:Type 7 30 cm howitzer
800:Type 4 15 cm howitzer
734:Type 92 battalion gun
469:Type 10 120 mm AA gun
1030:Type 96 15 cm cannon
898:Type 99 81 mm mortar
893:Type 98 50 mm mortar
868:Type 95 15 cm mortar
838:70 mm barrage mortar
648:Type 45 15 cm cannon
595:Type 96 15 cm cannon
590:Type 92 10 cm cannon
585:Type 89 15 cm cannon
580:Type 45 15 cm cannon
575:Type 38 10 cm cannon
570:Type 14 10 cm cannon
519:Type 99 88 mm AA gun
509:Type 88 75 mm AA gun
479:Type 14 10 cm AA gun
474:Type 11 75 mm AA gun
853:Type 3 81 mm mortar
848:Type 2 12 cm mortar
504:Type 5 15 cm AA gun
499:Type 4 75 mm AA gun
494:Type 3 80 mm AA gun
489:Type 3 12 cm AA gun
977:45 cm naval rocket
456:Anti-aircraft guns
1043:
1042:
946:Railway artillery
916:7 cm mountain gun
754:Grenade launchers
739:Type 94 37 mm gun
673:Dual purpose guns
605:Coastal artillery
152:'s reign (1914).
126:
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23:Type 3 81 mortar
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964:Rocket artillery
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162:Marshall Islands
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1007:Siege artillery
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37:Service history
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1015:28 cm howitzer
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613:28 cm howitzer
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529:Anti-tank guns
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410:External links
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405:1 October 1944
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197:cross-leveling
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150:Emperor Taishō
138:muzzle-loading
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62:Specifications
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391:December 1943
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374:December 1943
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304:instantaneous
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170:Trench mortar
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382:Bibliography
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332:October 1944
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146:World War II
129:
127:
86: length
56:World War II
42:Used by
257:causes the
164:during the
134:smooth bore
1052:Categories
706:Field guns
311:References
259:time-train
247:percussion
233:propellant
219:Ammunition
777:Howitzers
297:detonator
271:set screw
255:set-back
208:buttress
825:Mortars
562:Cannons
290:booster
267:booster
144:during
108:Caliber
204:square
156:Design
122:Manual
118:Action
84:Barrel
75:Length
16:Weapon
316:Notes
225:shell
212:sight
193:bipod
132:is a
112:81 mm
94:Width
32:Japan
398:1945
358:1945
287:body
284:nose
245:and
243:time
189:tube
128:The
67:Mass
52:Wars
1054::
363:^
337:^
136:,
437:e
430:t
423:v
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