M109A3GNM L/23 - Norwegian modified M109

M109A3GNM L/23


TYPE: Self Propelled artillery
AMOUNT IN NORWEGIAN SERVICE: 126x
TIME IN SERVICE OF THE NORWEGIAN ARMY (LATE UPGRADE): 1986 -

ARMAMENT

Spoiler
  • 1x 155 Millimeter Cannon
    -Barrel length in caliber: L/23
    -Maximum firing range: 14.6 km
    -Maximum rate of fire: 4 rpm
    -Sustained rate of fire: 2 rpm
    -Elevation range: - 3 to + 75 degrees
    -Traverse range: 360 degrees
    -Ammunition stowage: 36 Rounds

  • 1x 12.7x99 Millimeter Machinegun
    -Ammunition stowage: 500 Rounds
    -Mount: Mounted in a cupola on the turret roof

  • 6x Smoke grenade launchers
    -3x on each side of the turret cheeks

AMMUNITION 155mm

Spoiler

Norwegian Model NM28 High Explosive
PROJECTILE WEIHGT WITH FUZE: 44.4 kilograms
MUZZLE VELOCITY: 935 M/S (6 DM72/& in L/52)
MAXIMUM RANGE WITH BASE BLEED L39 Gun: 30 km
MAXIMUM RANGE WITH HOLLOW BASE L39 Gun: 24 km
DISPERSION: (20 km w/hollow base) PE length < ± 50 m/width ± 10 m
EXPLOSIVES: 9 kg TNT/Comp B
SERVICE TEMPERATURE: -46ºC to +63ºC

This is Norway’s verison of the M107 and OEF-3

Norwegian Model NM28 (PF) (Proximity fuze)
PROJECTILE WEIGHT WITH FUZE: 42.5 kg
MUZZLE VELOCITY: 380 m/s to 800 m/s
MAX. RANGE WITH HOLLOW BASE: 24 km
PROBABLE ERROR (OF RANGE): ≤ 0.5% (range) / ≤ 0.1% (deflection)
EXPLOSIVE MASS: 6,700 Grams of TNT
EQUIVALENT: Approx. 9 kg
SERVICE TEMPERATURE: -40°C to +52°C
TRIGGER RADIUS: 10-14 Meter above ground

This is Norway’s verison of the cost effective variant of M107 and OEF-3

Norwegian Model NM28 “cost effective”
PROJECTILE WEIGHT WITH FUZE: 42.5 kg
MUZZLE VELOCITY: 380 m/s to 800 m/s
MAX. RANGE WITH HOLLOW BASE: 24 km
PROBABLE ERROR (OF RANGE): ≤ 0.5% (range) / ≤ 0.1% (deflection)
EXPLOSIVE MASS: 6,700 Grams of TNT
EQUIVALENT: Approx. 9 kg
SERVICE TEMPERATURE: -40°C to +52°C

This is Norway’s verison of the cost effective variant of M107 and OEF-3

Norwegian Model NM28 (illuminating)
FUZE: M557
TYPE: Illuminating

The NM28 round is compatible with all fuzes according to STANAG 2916

These were also used, i am uncertain about the specs/history

  • DM642 Bomblets
  • DM662 Bomblets
  • OEF3HB High Explosive
    -FUSE: NM187
  • OEF3BB High Explosive
    -FUSE: NM187
  • M110WP White Phosphorus Smoke Grenade
  • M485A2 Illuminating

TECHNICAL DATA
Engine: Detroit Diesel 8V71T diesel
Engine power: 450 hp
Weight: 24.07 h
Whole length: 6.19 m
Width: 3.15 m
Height: 3.28 m

MANEUVERABILITY
Gradient: 60%
Side slope: 30%
Vertical step: 0.53 m
Trench: 1.83 m
Fording: 1.07 m

PERFORMANCE
Maximum road speed: 65 km/h
Range: 390 km

ARMOUR
All-welded aluminium hull
Up to 32mm

CREW
Crew capasity: 6x
-Gun commander
-Gunner
-Three ordnance men
-Driver

HISTORY
Picture is taken by Kongsberg Våpenfabrikk outside their facilities, before the later upgrade

The development of the M109 began in January 1952 after a conference wich took place in Washington, where the topic was self-propelled artillery. There was a need for a vehicle to replace the 155mm M44

The first prototype T195 appeared in 1959. after two more prototypes which all underwent some testing, production of the M109 was started in 1962

The M109 has undergone many modernizations over the years. The latest is version M109A6 Paladin, which is/was only in use in the USA

In 1969, 126 self-propelled 155mm howitzers were acquired from the USA (BMY), these were assembled at Kongsberg Våpenfabrikk. Norway chose the German version of the M109G vehicle. This has a wedge mechanism on the barrel, the American version has a screw mechanism. In 1986, the HFK (Army Supply Command) began modernization of the existing 155 mm gun (skyts), the main part of modification consisted of changing to a longer 39 caliber gun barrel (set that is, the gun barrel is 39 times 155mm long, 6.05m). The first 2 shooters (skyts) were modified in Germany, the rest at NFT in Narvik. The hulls were overhauled at Namek in Narvik, while Bjerkvik Tekniske Verksted took care of the drivetrain. The vehicle was now designated M109A3GN.

In 2005 the Norwegian army’s stock of these artillery vehicles were grreatly reduced, still maby of them, bot the L/23 and L/39 verisons were in service for a long time afterwards, before they eventually was taken out of service and put in storage, most due to the K9 Thunder replacing them. In the recent time the m109 wagons have been donated to Ukraine. Further fate unknown

This vehicle is of the Short barreled verison, L/23
Further specifications of the ammunition will be provided, so will the Norwegian Modifications part when/if i find more

Today there are over 120 countries that have banned the use of cluster bombs, but they were used in Norway right up until 2007! for the most part it was shot at the Hjerkinn shooting range

Characreistic winter-camouflage

-The painted name “Balder” is a Norse name from a deity associated with light, beauty, love, poetry and happiness
-Lisenceplate: 97052. would make the vehicle more characreistic
-Vehicle mark GN with red and yellow colour
-Yellow “PK 4” Inscription with red background

Summer camouflage, this is of the M109 with the L/39 cannon, some modifications and the cannon are different but the camouflage is simlar. this picture was the best showing i could find

AMMUNITION TECHNICAL DATA

Spoiler
  • Nammo Norwegian Model 28
    -Type: High explosive
    -Projectile weight: 43 Kilogram
    -Range: 18 Kilometer
    -Explosive type: TNT
    -Explosive mass: 6700 Gram
    -Muzzle velocity: Ca. 300-800 m/s depending on charge

  • M107 High Explosive
    -Projectile weight: 43.2 Kilogram
    -Explosive mass: 6860 Gram
    -Explosive type: TNT

  • OEF3BB

  • OEF3HB

  • OEF3BB Proximity
    - Proximity Fuse: NM187
    -Explodes 12m above ground

  • OEF3HB Proximity
    - Proximity Fuse: NM187
    -Explodes 12m above ground

  • DM642 Bomblets
    -Fuse: DM163

  • DM662 Bomblets
    -Fuse: M762

  • M110WP White Phosphorus Smoke Grenade
    -Projectile weight: 44.08 Kilogram
    -Range: 18 Kilometer
    -Smoke producing material: white phosphorus
    -White phosphorus: 7.1 Kilogram

  • M485A2 Illuminating
    Type: Illumination
    -Projectile weight: 41.5 Kilogram
    -Range: 18 Kilometer
    -Light: 60 Seconds
    -Drop height: 600 Meter
    -Filler: 2.66 kg - Illum compound
    -Type(Primary): Percussion
    -Model (Primer): M565
    -Illuminating time: >120”
    -Luminosity intensity: > 1 Mcd
    -Flare decent speed: 5 M/S

PICTRUES

Spoiler

M109A3GN L/23 — ImgBB

SOURCES

Spoiler

M109 – Wikipedia
M109 155 mm Self-Propelled Howitzer | MilitaryToday.com
https://www.tu.no/
MOTORISERTE MILITÆRKJØRETØY I NORGE - HMKSHOP - Depot Moane

Booklet of the modern norwegian land forces : Tankograd - Missons & Manouvers No 7016
Copyright verlag jochen vollert - Tankograd publishing 2009
Alle rechte voberhalten - all rights reserved
Keine verielfatigung, nachdruck oder fotokopie ohne vorherige schriftliche Genehmigung des Verlages - No part of this publication may be copied or reproduced without prior written permission from the publisher
Verlag Jochen Vollert - Tankograd publishing
Am Weichselgarten 5, 91058 Erlangen, Germany

Booklet from multinational exercise “battle griffin”: Tankograd - Missons & Manouvers No 7002
Copyright verlag jochen vollert - Tankograd publishing 2009
Alle rechte voberhalten - all rights reserved
Keine verielfatigung, nachdruck oder fotokopie ohne vorherige schriftliche Genehmigung des Verlages - No part of this publication may be copied or reproduced without prior written permission from the publisher
Verlag Jochen Vollert - Tankograd publishing
Wilhelmstr. 2b, 91054 Erlangen, Germany

POLL

Would you like to see this in-game?
  • Yes
  • No
0 voters

This post was made by
Til_Dovre_Faller
Also known as
Warthunder_Norway

2 Likes

Major update
-Added specifications and two new grenades
-Foldered ammunition and armament part