Nose Impact Fuzes R.S.A. Models 1925, 1928 and 1929Mechanical Impact Nose Fuze - M. Bis
ITALIAN AND FRENCH EXPLOSIVE ORDNANCE
Chapter 9
FRENCH BOMB FUZES
Nose Impact Fuze R.S.A. Model 1930
Data

Bombs used in

100-kg, 200-kg, 500-kg, (No. 2), 500-kg (Model 1930) G.P.-H.E. May be found in other bombs from 100-kg to 1,000 kg.

Fuzed used with

No. 3 Bis or Sch.R. Model 1938

Over-all length

6.8 in.

Width of fuze

1.8 in.
Description

The internal assembly of this fuze is the same as the other R.S.A. models already des-cribed. The distingushing features are the truncated hood and the large diameter. The hood on the dome cover is set down over the regular R.S.A. fuze mechanism.

At the apex inside the dome, there is a spring which is compressed when the hood is pla-ced on the fuze. Around the base of the hood are three spring loaded detents. The clip fits around the base of the hood and compresses the spring-loaded detents, which are pressed into the A-groove on an adapter which screws into the bomb.

Operation

When the bomb is released, the clip is pulled away, releasing the spring-loaded detents, which spring out and fall away. The hood then falls off with the help of the spring. The function of the fuze then is the same as described in the R.S.A. Models 1925, 1928, and 1929.

Remarks

The usual markings to indicate the delay are found on the pin at the base of the trunca-ted hood and are as follows:

White – Instantaneous
Alternate Black and White – Short delay 0.05 seconds.
Black – Long delay 0.15 seconds.

Figure 266
Nose Impact Fuze R.S.A. Model 1930

Nose Impact Fuzes R.S.A. Models 1925, 1928 and 1929Mechanical Impact Nose Fuze - M. Bis