Unknown bomb Bosnia

[Nabob]

Hi,
I am looking for ID of the bomb below.
Weight of the bomb now is 47kg.
Front fuze well (or part of fuze) is brass.
Painted black with residues of white blue markings.
stamped gsk 17 (or 47)

the lifting lug is perpendicular to the bombs axis!
Strange fin attachment.

Thanks, Bob.

 

[Dreamk]

This could indeed be a pre-1941 Yugoslavian bomb (also used by Croatian forces in ww2) - one of these:
The body shape and the suspension type are compatible. The tail arrangement of this bomb were quite peculiar but I had not succeeded to get more details.
Can you give the dimensions of this bomb's body?

On this photo the top bomb on the left with 6 fins and an annular reinforcement is a 50kg class



and this one is a 90kg class - 4 find and annular reinforcement on a tail cone that seems to be "clipped" on the body - may by the system seen on your pics

 

[Alpini]

This could indeed be a pre-1941 Yugoslavian bomb

+1

And also the fuze hole without a thread is typical. The fuze was just clamped with the help of two small set-screws.

It may a 50 kg "VISTAD" (Ing. Stankovic) bomb. This one looks similar but it seems to be shorter with some differences:

 

[Dreamk]

Alpini, this is really a unique document. thanks a lot.

BTW the system of clipping of the tail seen of Nabob's bomb can be also seen on the 2 bombs laying on the ground at the bottom center of the this photograph.
(Though at first look on can thing that these bombs are 12kg Stankovic, this identification may be questionable as the fins of the 12kg Stankkovic presented 3 characteristic longitudinal reinforcing ridges and the fins of these bombs are smooth.)



Could you identify the larger Yugoslav bomb of the same period in the foreground of this pic?

 

[Nabob]

Thank You for the interesting answers.
The length of the body is aprox. 87 cm,
the fuze hole is 30 mm in diameter with a screw to hold the fuze.
inside the fuze well are PETN detonators.
It seems that the inside of the bomb is devided in two sectinons. The aft one is empty on one of the bombs. (two were found in a river as far as I know)
There are 8 pairs of lugs for the tail.

I am not on site, but I will try to get more info.

Thanks again, Bob.

 

[Alpini]

Could you identify the larger Yugoslav bomb of the same period in the foreground of this pic?

Sorry, no idea about the bombs with ring-shaped tails.

 

[Nabob]

Thanks again for the answers and the diagram Alpini.
Interesting is the location. The town of Visegrad where the Stankovic factory was located.

Cheers, Bob.

 

[Dreamk]

Bob, could you give us more details on the following points:
1) Is 47kg the weight of the body of the bomb including the explosive
2) Can you get data on the weight of the empty body
3) Did they find any remnant of the fuzes or of the tails?
4) What is the maximum diameter of the body?
The photo seems to show a measurement taken close to the maximal circumference, but not at its maximal point - though this could be a photo artefact. In this case we speak of a maximal diameter of 172 mm for a body length of roughly 870mm.

 

[Nabob]

Hallo,
1)the weight of the bomb without fuze and stabilizer was later determined as 49,5kg
2) the body was not emptied
3) no remains of fuze or tail. The bombs were found under a railway bridge, one had an electric detonator in the front fuze well. Likely engineers used the bomb bodies.
4) Yes measurement was made on the cylindrical part.

The cavity under the base lid measures 300 mm 70 mm in diameter and was filled with 1,5kg charge wrapped in paper. No fuze well in the bottom. The filler was high explosive, most probably mixture of TNT and Tetryl. There was no chemical analysis made.

The brass adapter in the front has visible length of about 20mm with non-threaded hole 30mm in diameter and screw from the side.

Photo shows the charge in the base of the bomb.

Cheers, Bob.

 

[Dreamk]

Thanks a lot for the info!