Fuzes for Air Bombs

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FUZE AVU-ETMA for Air Bombs

Universal air heat resistant fuze AVU-ETMA with electrical and mechanical starting devices is intended for high-explosive,fragmentation high-explosive, high-explosive incendiary, incendiary air-bombs and incendiary containers. The fuse is fitted into nose or base fuse threaded filling holes.The fuze provides point detonating and inertia action, ignition SQ and two delay modes.Fuze AVU-ETMA completes the following types of air bombs:
· OFAB-100-120
· OFAB-250-270
· FAB-500M-62
The fuze is safe in storage, handling and operation and ensures the safe and reliable function of the ammunition in all weather conditions.

Arming: mechanical or electric
Action: PD, delayed
Operational Temperature Range: -60 to +150°C
Maximum allowed exposure at 150°C: 90 minutes
Shelf Life: 12.5 years





16 units in four air-tight metal boxes
packed in a wooden case with dimensions: 658Ñ…598Ñ…191 mm
Gross weight: 57 kg
Volume: 0.075 cu.m.
Total length: 210 mm



Weight:
Without additional ring: 1920 g
With additional ring: 1970 g

Method of arming: mechanical or electric

Voltage necessary for operation
of electric starting device: 27 V

Delay depending on the height of bombing
Assault circuit with delay (automatic): 8.2 – 14.5 s

Altitude circuit:
- immediate (setting Ðœ) SQ
- short delay (setting МЗ) 0.01 – 0.04 s
- middle delay (factory preset) 0.06 – 0.09 s

Distance arming delay:
- assault circuit 1.3 – 2.6 s
- setting П 3.5 – 5.5 s
- altitude circuit 8.7 – 13.5 s



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