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Mk.80, Mk.117 and "Snakeeye" Bombs - Loadout suggestion


Introduce Mk.80 and Mk117 bombs  

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I am wandering if the family of the Mk.80 and Mk.117 bombs are going to be for the tier V american and british planes. They are general purpose bombs, they were developed in the 50´, used first in the end of korean war, and they still are in service in many countries.



Douglas Aircraft developed the Mk 80 Series General Purpose Bombs in the 1950s in response to the requirement for bombs producing less aerodynamic drag than existing bombs of that time. They are currently being produced by General Dynamics. Originally, four different weight bombs were produced: Mk 81, 250-lb; Mk 82 500-lb, Mk 83 1,000-lb, and Mk 84 2,000-lb bombs.  All are of similar construction, with relatively light cast steel cases and 45-percent of the weight is explosive. They are also known as “dumb bombs” because they are unguided and delivery accuracy is not very good, often resulting in missing their targets or causing heavy collateral damage.  Still, Mk 80 bombs were used in massive quantities during the Vietnam war and other conflicts.


Accuracy could be improved by dropping the bombs from lower altitudes, but this exposed the delivery aircraft to ground-fired weapons, and, if low enough, the aircraft could be exposed to fragments from the exploding bombs themselves. To solve the self-damage problem China Lake developed the Snakeye xxxx fin assembly in the 1960s. On exhibit here are three different types of xxxx assemblies. Two of them have “balloots” which have a combined balloon/parachute assembly and the other is the Snakeye mechanical retarding assembly developed at China Lake.


Aditional data:


In recent years, scientists at China Lake and other facilities have taken the Mk 80 series bombs as a basic warhead and added guidance kits to the nose and tail to create guided bombs, and in some cases added wings so that the bombs can glide while being guided to a target. Concepts include semi-active laser, that created a series of laser guided bombs or LBGs and Global Positioning Satellite or GPS-guidance, that created the Joint Direct Attack Munition or JDAM, currently one of the military’s most accurate weapon systems.

In fact, the creation of the LGBs and JDAMs have improved bombing accuracy so much that whereas, it used to take several aircraft carrying loads of dumb bombs to attack one single target, and now with JDAM and LGBs, a single aircraft can successfully attack several targets with a single load, drastically decreasing the number aircraft needed to fight a war.


Mark 81 – nominal weight (113 kg)

Mark 82 – nominal weight (227 kg)

Mark 83 – nominal weight  (454 kg)

Mark 84 – nominal weight  (907 kg)







data about fuze sensivity and activation:










Snakeeye was developed for United States military forces in the 1960s








Mk-117 bomb "Dumb bomb"


The M117 is an air-dropped GPB used by US military forces. It dates back to the time of the KW of the early 1950s. Although it has a nominal weight of 750 pounds (340 kg), its actual weight, depending onfuze and retardation options, is around 820 pounds (372 kg). Its explosive content is typically 403 pounds (183 kg) of Minol 2 or tritonal. It can also be configured with a low-drag tail fin for medium and high-altitude deliveries.


The M117 is a free-fall, unguided, general purpose [GP] 750-pound bomb. Its usual fuzes are the mechanical M904 (nose) and M905 (tail), or the mechanical FMU-54 (tail). The M117 is employed in several configurations.


The basic M117 dates from the Korean War and uses a low-drag tail fin for medium and high-altitude deliveries.


The M117R (xxxx) uses a special fin assembly providing either high-drag or low-drag release options. For low altitude deliveries, the tail assembly opens four large drag plates which rapidly slow the bomb and allow the aircraft to escape its blast.


The M117D (Destructor) is similar to the M117R but uses a magnetic influence fuze which enables the bomb to function as a mine. The M117D is released in a high-drag configuration for ground implant or shallow water mining. It detonates when an object passing near the bomb triggers the fuze.
These are general-purpose (GP) high-explosive (HE) bombs which may use proximity, mechanical, or electric nose and tail fuzes.
The explosive weight accounts for 50% of the total bomb weight (without the tail).  
When used as an M117D (destructor), the M117 bomb has a fuzing system actuated by magnetic/seismic influence. 
Both fragmentation and blast effect are produced by these bombs.
The M117-series bombs may be fitted with either a conical or xxxx (Snakeye) fin assembly. 
All bombs may have an arming wire assembly, lanyard, or an electrical charging receptacle installed, depending on the fuzing employed. 
The charging well between the suspension lugs may be fitted with either an electrical charging receptacle with an arming safety switch installed or a lanyard, or closed by a plug to provide watertight integrity. 
The suspension lugs are 356 millimeters (14.00 inches) apart. 
The conical fin assemblies for the bombs have access doors, secured by quick-release fasteners, to give access to the tail fuz









Info taken from wikipedia, other pages and from a Malvinas war book. 





Explicacion para comunidad de habla hispana/ Explanation for spanish comunity



Edited by Becharita
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  • Senior Suggestion Moderator

Open for discussion.  :salute:

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The magnetic fuzed bombs could (if modeled correctly) could greatly help in attacking armoured columns by allowing the bombs to detonate at a distance where the bombs will actually kill something


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Are these bombs even ITF? I've never been able to figure out when the Mk80 series and Mk117/Mk118 entered service. 


The Mk.80 and M117 developed in the 50´ entered in 52´. You can read it in the bibliography.


The Mk80 snakeeye variation in the 60´. I know its not korean war but it will be interesting to see the modeling of the bombs.

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