Sunday, October 15, 2017

Hand Grenades
Dutch Schokhandgranaat (Pull-pin, impact fuze, tail stabilizes during flight so it lands on the pressure plate)
"This defensive grenade was made of a drawn steel tube with a hemp-tail and a brass impact fuze.
The fuze had to be unscrewed to fit the detonator before use, the tail gave it a stabile flight so it would land on the pressure plate.
2 types of bodies were made, the fixation of the tail made the difference.
Length w/fuze :
Length w/o fuze :
Hemp tail length :
Diameter body :
Weight : 900gram including 120gram Trotyl."
French Mle "Bracelet" grenade (Pull fuze attached to throwing brace)
"The "Bracelet" grenade from 1914 was still shaped like a cannonball, but had a threaded hole to fit the new fuze.
Like the 1882 model, this one was thrown with a hook attached to the pull ring and fixed to the throwers arm giving more distance between the thrower and the moment of igniting the delay.
Height 115mm, Width 75mm.
110gram black powder charge."
Baldari Italian stick grenade (Fuze lit by hand)
"This cast iron grenade was fragmented on the outside.
It's stick was made of solid wood and was fixed to the body with screws.
The fuze had to be lit by hand."
(Italian)
"The lenticolare was a disc-shaped cast iron body and had a safety fuze on the top.
It had to be lit by hand before throwing.
Developed in 1914.
Height: 58mm , Diameter: 116mm
Weight: 510, 600, 630gram
Filling: 150, 200, 300gram."
(Italian)
"The Carbone was used in WW1.
The body was fragmented cast iron, with a steel wire handle.
A safety fuze was placed in the top and had to be lit by hand.
Length body: 120mm , Diameter: 52mm
Weight: 1000gram , Filling: 75gram."
(Italian)
"The BPD had a cilindrical cast body with a threaded cover on the top.
This cover held the fuze which had to be struck to a hard surface to ignite the delay.
Fuzes are known in brass and zinc.
Total length: 120mm , Length body: 96mm
Diameter: 56mm
Weight: 1140gram , Filling: 75gram."
(British)
"1915"
"The No.13 "Pitcher" grenade was made of a prefragmented cast iron body.
A charge was inserted from the top and fixed with tar.
It had a pull-ribbon under the safetycap which was treated with red phosphor and ran through a matchhead compound.
Together with the No.14 (similar, heavier) these were the most dangerous of them all.
A lot of these grenades exploded immediately when the ribbon was pulled.
Length 110mm, width 51mm.
Weight 510gram including 113gram ammonal.
The grenade on the photo below carries the markings "ROBURITE & AMMONAL LTD No14 4/1915"on the safety cap."
(British)
"1915"
"The No.8 consisted of an 85gram ammonal charge with steel balls for fragmentation.
Both balls and charge were fitted in a simple tin can with wooden inserts.
A piece of safety fuze with a crimped detonator fitted through the top and had to be lit by hand.
H 76mm, W 73mm.
Weight 650gram."
(British)
"1915"
"The offensive No.6 was made of a steel can with rounded top and base.
It's filling was 370gram Tolite or 214gram Amatol 80/20.
A pull-friction fuze on top fired the delay.
The body had "LIGHT" stencilled on the side.
H 102mm, W 57mm.
Total weight 450gram."
(British)
"Battye"
"This cast iron grenade was made from 1915 on, in the North of France(Bethune).
It's fragmented body had a wooden plug that closed the top, through which a Bickford safety fuze was placed.
This fuze had to be lit by hand. The grenade was named after its constructor.
Heigth 80mm, width 45mm.
The photo of the bronze type came from Dave Sampson, this appears to have been found on a former WW1 battlefield in France."
(British)
"No. 19"
"This cast iron grenade was first used in 1917.
It had a stick with 4 cloth straps which functions like a tail.
Before use the safetypen had to be withdrawn, and a small shear wire functioned as a second safety.
Length 280mm, Weight 737gram including 71gram Bellite, Amatol or Ammonal."
(German)
"Discushandgranate 1913
The 1913 model "turtle" grenade was made of 2 cast iron halves, riveted together.
It was fragmented on the inside and the fuze was made of aluminium.
When the safetypin was pulled, a small safetypen fell out of the body (during flight) which held the 4 primers away from the 4 stikerpins.
Opposite of the side on which the grenade landed, one or two primers were driven onto the strikerpins, igniting it. The detonator had to be inserted before use, by unscrewing the detonator plug.
Diameter of body 80mm , total width 100mm."
(German)
"Discushandgranate 1915
The 1915 discus grenade functioned exactly the same as the first type.
It's body was made of pressed steel of about 1mm thick.
The fuze assembly was made of an alloy with 4 brass end screws.
Throwing the discus in a rotating way, the plungers were driven outwarts by the centrifugal force. This was its safety during flight.
Striker pins are uncovered as the safetypen falls out during flight.
On impact, one, or possibly two plungers (with primer), would drive itself onto one of the four strikerpins."

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