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Russian time fuze
- Thread starter jvollenberg
- Start date
Why does it go to 10 to 100? I would have never guessed 22-second.
Joe
Joe
It is a double action fuse D.
There was also a variant scaled to 130. The position marked UD (in Cyrillic) on the ring is for impact action, the position markd K is for canister shot action (in this case the fuse worked just 6-10 m from the muzzle). The scale refers to distance in metres, one step corresponds to 50 m according to a Soviet book on artillery ammo.
There was a pretty similar "22 second double action fuse", but this was scaled to 130, 140 or 150, slightly differing in shape from type D as well.
There was also a variant scaled to 130. The position marked UD (in Cyrillic) on the ring is for impact action, the position markd K is for canister shot action (in this case the fuse worked just 6-10 m from the muzzle). The scale refers to distance in metres, one step corresponds to 50 m according to a Soviet book on artillery ammo.
There was a pretty similar "22 second double action fuse", but this was scaled to 130, 140 or 150, slightly differing in shape from type D as well.
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can you find this text part again? It makes no sense to me because the scale on the fuze looks linear (is it?) and linear scales are normally time scales.
Extremely difficult to understand ... but Russian stuff seems to be that way.
Any ideas on that marking on it?
Joe
Any ideas on that marking on it?
Joe
Yes, it's hard to believe, but it is described this way.
One can find this very information even on top of the page 103, Nabob has posted above. It literally says: "On the external surface of the lower distance ring a scale is placed of 100 or 130 units of the gun sight, each of 50 m value, and, additionally, two lines with K and Ud markings."Regards
Grzesio
There are 2 different ways to set the fuze timing:
-Measure from map distance to target and set necessary steps on fuze.
-Take from ballistic table speed of projectile and from distance calculate flight time and set.
Both these ways are not quite accurate as at long distance projectile speed reduces, unless from ballistic table the actual flight time can be better estimated?.
In Finnish manual set up values for 130 step fuze say: One step refers to 43 meters, one second flight time is 6,3 steps.
In my opinion it is simpliest to use the meters instead of time. Naturally at very high angles the distance and flight time are different, but I assume a trained crew could estimate that as well.
-Measure from map distance to target and set necessary steps on fuze.
-Take from ballistic table speed of projectile and from distance calculate flight time and set.
Both these ways are not quite accurate as at long distance projectile speed reduces, unless from ballistic table the actual flight time can be better estimated?.
In Finnish manual set up values for 130 step fuze say: One step refers to 43 meters, one second flight time is 6,3 steps.
In my opinion it is simpliest to use the meters instead of time. Naturally at very high angles the distance and flight time are different, but I assume a trained crew could estimate that as well.
