Korean S&T Daewoo K11 OICW Test Fire

by Nicholas C

Published: August 23rd, 2018

Remember the US ARMY’s OICW competition back in the 90s? Well apparently South Korea has continued to develop their own version. S&T K11 DAW (Dual-barrel Air-burst Weapon) is the modern version and my friend Uk Yang test fired it.

In case you can’t see the facebook video above, here is a youtube version.

Yang was not impressed. The gun functions well but the Fire Control System (I assume he means the giant spotting scope) and the whole 20mm smart grenade concept leaves much to be desired. It is clunky and not effective at killing things.

The gun is interesting as it has a single trigger mechanism and a four way selector switch. I am curious how it can lock out the 5.56 rifle and enable the bolt action 20mm with just a simple flip of the switch.

But the size of the optic and weight of the gun makes it seem unwieldly. The OICW program is over 20 years old and I wonder if modern technology could make this system more compact and more importantly make the 20mm smart grenades feasible? Perhaps the optic could be made smaller?

Operating the bolt of the 20mm launcher seems clunky. Maybe it needs to be broken in and will smooth out?

The problem, according to Yang, is that the higher ups in Korean Military are sold on this weapon system and any failings are the result of someone else’s problem. It sounds like the K11 suffers from the same shortcomings as the original OICW program. Lack of lethality and weight are the two major draw backs to this weapon system. Hand held 20mm does not seem like an effective weapon. If it was, the US military would have adopted it. Why would Korea want to pursue this failed weapon system when the US Army gave up on it for a reason? At least we have new video of it being fired and operated and we can dream of what could have been.

#20mm #OICW #Korea #Daewoo #K11 #S&TDaewoo

Nicholas C

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8 of 63 comments

Potates on Aug 24, 2018

Of all the 3 OICW type weapons comming out of asia i kind of suspect the North Korean one to unironicly be the most functional due to the lack of any complex electronic systems. Realy makes for a sad display when the norks are the ones doing it better, not that the OICW concept as a whole makes much sense.

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Ahead22 on Aug 24, 2018

Is it possible to send a radio beam alongside the outbound grenade?
The radio beam sent with distance scale and the grenade will be ignited when it reach the place where the distance scale is as same as the value which preset in it.
So the key is,
Is it possible to send a radio beam with distance scale set in it?
If the answer is yes,
You won't need to know the accurate velocity of the outbound grenade, and you can ignite it exactly where you want.

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- AgMaple on Aug 25, 2018
  
  @Ahead22 It would be possible, but expensive. Particularly on the projectile side, since you would need a radio receiver and antenna on each projectile.
  The XM25 ammunition used a relatively inexpensive turns counting fuze. The fire control divided the target distance by the barrel twist and fed that number to the fuze. The fuze had a magnetic sensor in it that detected "Down." The fuze just had to count up to the number of Downs sent by the fire control, then it detonated. Range accuracy of the detonation was +/- the barrel twist.
  No need for projectile velocity measurement; no timers needed; no laser or radio comms to the projectile; just target distance. It worked because spin decays at an extremely low rate.
  
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- Ahead22 on Aug 25, 2018
  
  @AgMaple So,XM25 is just operate like a time fuse,but it won't be accurate.
  
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- AgMaple on Aug 26, 2018
  
  @Ahead22 The accuracy difference between turns counting and time fuzes is small enough that it doesn't matter in most environments. Both need an accurate range-to-target and an accurate aeroballistic model, but with turns counting you don't have to measure, or accurately predict, the projectile velocity.
  As a turns counter example, for a 1:10 twist barrel, the error stack-up is +/- 10" (+/- 1 revolution) plus the accuracy of the ballistic solution.
  For a time fuze, you have to know what the velocity is at some point in the trajectory, usually the muzzle, so you can calculate the time to travel to the desired range. The error stack-up is then the tolerances on the timer, the measured velocity, and the ballistic solution.
  The one place the turns counter can have problems is in the presence of large electromagnetic fields. That can screw up the "Down" sensor. Examples are large concentrations of magnetic materials (steel armored vehicles) or high voltage (power lines) along the trajectory. Even so, I believe the error is less than 1 revolution per EM passed field. You can also use two sensors to counter the issue, but that requires more power and computing ability on the projectile.
  
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- Ahead22 on Aug 27, 2018
  
  @AgMaple If my idea is possible,the cost won't be very high.
  A radio receiver and antenna is relatively cheap if you can detonate the grenade exactly where you intended,because you can destroy your target with fewer shots.
  
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- AgMaple on Aug 27, 2018
  
  @Ahead22 You need a receiver and antenna on each projectile, so it can "read" the range and know when to detonate. That is much more expensive than a magnetic sensor.
  
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- Ahead22 on Aug 27, 2018
  
  @AgMaple In fact, the magnetic sensor is a electromechanical device,So called radio receiver and antenna is a micro chip plus an electrical circle.
  Will they be more expensive than a counter?
  Crucially, this method will ensure a really accurate detonation.
  After all,our ideas means nothing,unless you can get them known to relative persons.
  
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