USNBD, Bombs and Fuzes; Section III - Bomb Fuzes: Introduction

U.S.N.B.D. - UNITED STATES - BOMBS AND FUZES; PYROTECHNICS

SECTION III - BOMB FUZES

FUZES

General Arrangement of Fuzes:

The fuzes under consideration in this book have been arranged according to two ge-neral plans. First, they have been grouped in strict numerical order in the fuze chart be-low. Second, in the detailed discussion of fuzes which follows, the arrangement is by "family", i.e., fuzes bearing similar construction characteristics are considered as a unit (M100 series, T75, M160 series). The overall order is numerical with the initially numbered fuze of a series or family determining the place of that series in the general pattern of discus-sion.

Fuze Chart:

The fuze chart has been designed as a quick reference guide to American fuzes. The fol-lowing abbreviations have been used under. Arming Data: V.R. for vanes revolutions; and M.A.A. indicating Minimum Altitude to Arm at 200 m.p.h.

U.S. NAVY DESIGNED FUZES

			Functioning Times				Addit. component part
Model No.	Posit.	Type	Functioning Times	V.R.	Air Trav. (ft)	M.A.A.	Addit. component part
AN-Mk 219	Nose	Mechanical Impact	Inst.	170	1100 2000-2500 (flat nose)		Adapter ring, Mk I Aux Booster with all DB's, Mk 12 500#GP, Mk 13 1000#GP. Adap. ring & Mk 4 booster with all "M", "AN-M" G.P.'s.
Mk 221	Nose	Mech. Impact	0.01	165	850-1100		None
Mk 223	Tail	Mech. Impact	0.01	150	850-1100		None
AN-Mk 224 and Mods	Athw.	Hydrostatic	25, 50, 75 100, 125 ft. depth	Armed at 12 to 25 ft. depth			Spacer ring re- quired with 650, 700#DB's.
Mk 227-0	Nose	Mech. Impact	Inst.		1500-3000		None
AN-Mk 228 and Mods	Tail	Mech. Impact	0.08	140- 150	1100	200	None
Mk 229 & Mods	Tail	Hydrostatic	25, 50, 75 100, 125 ft. of water	110	500	60	None
AN-Mk 230 and Mods	Tail	Hydrostatic	25, 50, 75 100, 125 ft. of water	110	300-400	60	None
Mk 231-0	Tail	Hydrostatic	25 ft. water	40-45		60	None
Mk 232 and Mods	Nose	Impact, Elec. Firing	Inst. or Elec. Impul.	8			None
Mk 233 and Mods	Nose	Elec. Firing	Elec. Impul.				None
AN-Mk 234 and Mods	Athw.	Hydrostatic	25, 50, 75 100, 125 ft of water	Completely armed at 12 to 25 ft. depth			Spacer ring re- quired with 650, 700 lb. DB's.
Mk 237-0 Mk 238-0	Tail	Long Delay	2, 10, 30 hrs.	150			None
Mk 239-0	Nose	Mech. Impact	0.01	165	850-1100		None
Mk 240	Tail	Hydrostatic	25 ft. water	40-45		60	None
Mk 243-0 Mk 244-0	Nose	Mech. Impact	0.025	130	500		None

* Seconds unless otherwise indicated

U.S. ARMY DESIGNED FUZES

			Functioning Times				Addit. component part
Model No.	Posit.	Type	Functioning Times	V.R.	Air Trav. (ft)	M.A.A.	Addit. component part
AN-M100A1 AN-M101A1 AN-M102A1	Tail	Mechanical Impact	Non-delay 0.01 0.025 0.1 0.024	720			M14 Primer Det. M102A1 Adapter Booster with Navy G.P.'s
AN-M100A2	Tail	Mechanical Impact	Non-delay 0.01 0.025 0.1 0.024	720	445-485	40-50	M14 Primer Det. M102A1 Adapter Booster with Navy G.P.'s
AN-M101A2	Tail	Mechanical Impact	Non-delay 0.01 0.025 0.1 0.024		555	60-70	M14 Primer Det. M102A1 Adapter Booster with Navy G.P.'s
AN-M102A2	Tail	Mechanical Impact	Non-delay 0.01 0.025 0.1 0.024		455-665	85	M14 Primer Det. M102A1 Adapter Booster with Navy G.P.'s
AN-M103 AN-M103A1	Nose	Mechanical Impact	Inst. 0.1	Inst: 300 0.1: 220	Inst: 760-1600 0.1: 510-1080	450 210	None
AN-M104	Nose	Mechanical Impact	Inst.	2.5 sec. pyrotechnic delay			None
M105	Nose	Mechanical Impact	Inst. 0.1	450- 450			None
M106	Tail	Mechanical Impact	45-60	Armed when dropped			None
M106A1	Tail	Mechanical Impact	8-11	Armed when dropped			None
M106A2	Tail	Mechanical Impact	3-5	Armed when dropped			None
M108	Nose	Mechanical Impact	Inst.	Armed when dropped			None
M109	Nose	Mechanical Impact	Inst.	2.5 sec. pyrotechnic delay			None
M110	Nose	Mechanical Impact	Inst.	570		60	None
AN-M110A1	Nose	Mechanical Impact	Inst.	260		60	None
M111	Nose	Mech. Time Aerial Burst Impact	15-93	570		450	None
M111A1	Nose	Mech. Time Aerial Burst Impact	5-92	570		450	None
M111A2	Nose	Mech. Time Aerial Burst Impact	5-92 Impact-Inst.	260		185	None
M112 M113 M114	Tail	Mechanical Impact Pyro. Delay	4-5 8-11	18-21	100		M16 Primer Det.
M112A1 M113A1 M114A1	Tail	Mechanical Impact Pyro. Delay	4-5 8-11 8-15	18-21	100		M16A1 Primer Det.
M115	Tail	Mechanical Impact Pyro. Delay	4-5 8-11 8-15	150- 170	485	40-50	M16, M16A1 Primer D. M102 Adapt. Boost. with Navy G.P.'s
M116		Mechanical Impact Pyro. Delay	4-5 8-11 8-15	150- 170	555	60-70	M16, M16A1 Primer D. M102 Adapt. Boost. with Navy G.P.'s
M117		Mechanical Impact Pyro. Delay	4-5 8-11 8-15	150- 170	665	85	M16, M16A1 Primer D. M102 Adapt. Boost. with Navy G.P.'s
AN-M120	Nose	Mechanical Impact	Inst.	2.5 sec. Mechanical delay
AN-M120A1	Nose	Mechanical Impact	Inst.	1.9 sec. Mechanical delay
M123 M124 M125	Tail	Chem.-Time Anti-With- drawal	1, 2, 6, 12 24, 36, 72, 144 hrs.	75- 190	370	180 125 310	M19 Primer Det.
M123A1 M124A1 M125A1	Tail	Chem.-Time Anti-With- drawal	1, 2, 6, 12 24, 36, 72, 144 hrs.	4-5			M19A1 Primer Det.
AN-M126A1	Nose	Mechanical Impact	Inst.	260		60	None
M127	Nose	Mech. Time Aerial	5-92 Inst.	260		185	None
AN-M128	Nose	Same as M111A2	Same as M111A2	260		185	None
M129	Athw.	Impact Air Burst	Inst. Air Burst	2.5 secs.			None
M130	Athw.	Mech. Time	10, 20, 30 minutes	3.5			None
M131	Athw.	Anti-Dis.		5 seconds after impact			None

			Functioning Times				Addit. component part
Model No.	Posit.	Type	Functioning Times	V.R.	Air Trav. (ft)	M.A.A.	Addit. component part
M132	Tail	Chem. Time Anti-With- drawal	10 min.	63-84	300		M19 Primer Det.
M133	Tail	Chem. Time Anti-With- drawal	10 min.	63-84	370		M19 Primer Det.
M134	Tail	Chem. Time Anti-With- drawal	10 min.	63-84	300-450		M19 Primer Det.
M135	Nose	Mech. Time Air Burst	5-92 Inst.	260	750		None
M135A1	Nose	Mech. Time Air Burst	10-92 Inst.	260	750		None
M136	Nose	Mech. Time Air Burst	5-30 Inst.	260	750		None
M136A1	Nose	Mech. Time Air Burst	10-30 Inst.	260	750		None
M138	Nose	Same as M111A2	Same as M111A2	260		185	None
M139 AN-M139A1	Nose	Mechanical Impact	Inst. 0.01	Inst: 330 Delay: 220	765-1600 510-1080	450 210	None
M140 AN-M140A1	Nose	Mechanical Impact	Inst. 0.25	Inst: 330 Delay: 220	765-1600 510-1080	450 210	None
M142 M142A1	Nose	All-Ways Action	Inst.	Armed when dropped			None
M143	Tail	Bouchon Grenade	Air Burst	Armed when bomb is dropped			M18 Grenade
M144	Nose	Same as AN-M111A2	1.6-30.5 Inst.	6-9			None
AN-M145	Nose	Same as AN-M111A2	Same as AN-M111A2	260		185	None
AN-M146	Nose	Same as AN-M111A2	Same as AN-M111A2	260		185	None
AN-M147	Nose	Same as AN-M111A2	Same as AN-M111A2	260		185	None
M148	Nose	Mechanical Impact	Inst. .1	Inst: 330 Delay: 220	765-1600 510-1080	450 210	Japanese type Gaine
M149	Nose	Blast Press. Mech. Imp.		12-13			None
M150	Nose	All-Ways Action	Inst.	Armed when bomb is dropped			None
M151	Tail	Mech. Imp. Pyro. Del.	8-15	12			M16A1 Primer Det.
M152 M153	Tail	Same as AN-M111A2	Same as AN-M11A2	260		185	None
M154		All Ways Action	Inst.	Armed when bomb is dropped			M13-M14 Igniter
M155	Nose	Same as AN-M111A2	Same as AN-M111A2	6-9			None
M157		All-Ways Action	Inst.	18-30	150-220		M15, M16 Igniters
M158 M159	Nose	Mechanical Impact	Inst.	440	1000		None
M160	Tail	Mechanical Impact	Non-delay 0.01, 0.025 0.1, 0.24	720	1780-1950	650	M14 Primer Det. M102 Adapter Booster with Navy G.P.'s.
M161	Tail	Mechanical Impact	Non-delay 0.01, 0.025 0.1, 0.24	720	1910-2230	805	M14 Primer Det. M102 Adapter Booster with Navy G.P.'s.
M162	Tail	Mechanical Impact	Non-delay 0.01, 0.025 0.1, 0.24	720	1710-2680	1130	M14 Primer Det. M102 Adapter Booster with Navy G.P.'s.
M163	Nose	Mechanical Impact	Inst. 0.1		Inst: 1710-3625 Delay: 1140-2420	Inst: 1775 Delay: 915	None
M164	Nose	Mechanical Impact	Inst. 0.01		Inst: 1710-3625 Delay: 1140-2420	Inst: 1775 Delay: 915	None
M165	Nose	Mechanical Impact	Inst. 0.025		Inst: 1710-3625 Delay: 1140-2420	Inst: 1775 Delay: 915	None
M166	Nose	Air Burst VT type	Automatic Air Burst		3600
M170	Nose	Mechanical Impact	Inst.	1.5 secs.	Mechanical Delay		None