Various Incendiaries From top BRITISH 4LB below GERMAN 2.2KG below GERMAN 1KG and finally bottom FRENCH 1KG

The most used and easily recognised bomb of the 2nd world war has to be the German Incendiary bomb, dropped on the UK in their millions , with lots failing to ignite.
It was said to me that during the war , most school boys had the fins of these bombs on their desks , and used them as pencil holders.
One of the first bombs to be mass produced and used in the Spanish civil war of 1936.
Dimensions of 1kg and 1.3 Kg bombs
Oa 13.75 inches
dia 2 inches
tail length 4 3/4 inches

Component parts of the 1KG showing the charge case

1.3 Kg Incendiary the nose was replaced with steel to assist in breaking of tiles prior to igniting.

1.3 Kg with Explosive tail the idea was to scatter the burning magnesium over a wide area.

Close up view of the explosive gaine


The 1Kg with explosive tail

Marking of nose fuze with explosive tail

FUZES FOR THE 1Kg and 1.3 Kg incendiaries

AZ8312 magnesium

AZ8313A steel

Steel and Magnesium bomb fuzes

Markings on the fuzes

Sectioned fuze

The 2.2 Kg explosive nose incendiary this consisted of a normal incendiary but added to this was a explosive cylinder which acted as a deterrent for those trying to put out the bomb and of course to do as much damage as possible

Front portion

Front showing filler plug

Tail of Explosive nosed 2.2 Kg Note size difference

A partly burnt 1 kg

Explosive nose from the 2.2Kg incendiary

An extremely rare German Brandbombe B10 a liquid airdropped incendiary not used over here ! consisted of oil and Phoshor. fuzing was by way of an allways acting AZ23A fuze .Not dropped over here in the UK( GS Collection)

German 2.2Kg training incendiary bomb


1942 dated papers on the 2.2 Kg


FRENCH 1KG dropped by the Germans over the UK

Close up picture of the French 1 Kg Incendiary Tail

French Incendiary tail similar to German But the three pieces are slotted together not welded like the German ones.

Side by side view of both types of tails

Nose fuze from French 1Kg

Internal view

Side view of French nose fuze

Information on the French incendiaries

Swedish M83 Incendiary

Markings on Body

Markings on Body

Markings on body of Swedish M83 Incendiary


The British 4 LB

Fuze assy on British bombs the fuze was in the top

Top markings of British 4Lb this tail was made at The Metal Box company 6 th factory

nose plug with delay element from British 4Lb Incendiary

front view of Explosive nosed 4Lb

top view

Op1665 sheets on the British 4 lb Incendiary bombs


Training version

Tail assy of ARP incendiary

Nose of ARP incendiary

Side by Side view Of Top Home Office training version and a German 1Kg





Replica 1KG Incendiary made by Dug up as a museum quality or training aid
look at the attention to detail in the sectioned front piece ! made of solid aluminium its a lot heavier than an original.


sometime ago I was asked if a recently purchased German incendiary bomb was empty or not as the owner could not unscrew the nose fuze .After all these years a large amount of these Incendiaries wont unscrew due to the magnesium expanding with damp ?
There are several ways to have a check to see if your one is possibly live !
First when shaked does it rattle ? if it does this is usually a sign that the fuze has been removed and you have a retaining collar left inside.

Second with a piece of flexible wire fashion the end couple of inches into a right angle and gently insert it up inside through one of the fire holes if there is an obstruction it still doesn't mean you have to panic , it maybe the split collar has got caught sideways inside the body.

Third if methods one and two fail then weigh the body using suitable digital scales.These are the weights I obtained from my examples.

1 Kg standard incendiary all weights in Lbs using digital scales

Empty AZ83128* nose fuze no striker etc 1.437 Lbs

AZ8312@ nose fuze with striker etc 1.503 Lbs

Complete with Empty charge case inside 1.598 lbs

1.3 Kg Steel nose fuze AZ8313 no components in fuze 2.235 Lbs

AZ8313 with components in fuze 2.303 Lbs

Remember there maybe slight variations but only minor ! anything much heavier then caution is required !