I never use Loch ever. The trade off for a mine launcher going down is too risky. After the shits n giggles are over you go...oh, right, rebuild and hope to heck you get it back up before the foe kills you.
Loch is vital, you use it for emergencies and not for "shits and giggles". you might lose your gun for a few seconds but that mine is doing 405 damage to balloon, 180 damage to armor and 337 damage to hull - as well as some 135 to components if you managed to hit close to them.
Of course if your pilot can bring you outside of that loch arming range of ~66m to a better range for other ammo types it's a bit more advisable, but there are scenarios in which you have to use it if your engines are out and the enemy is right in your face so you can't provide better range like when fighting a hwacha fish for example - it's not even that unusual for an enemy to bring hwacha fish if you bring a munker.
Your mine might not be as effective in the long run because of the rebuild time, but if you have an experienced gunner you can almost guarantee a hit every time with loch, making it extremely viable at escaping those situations because the discombobulation from that one mine that wouldn't have hit otherwise if you haven't used loch bought you time to rebuild some engines and back away for more mines to get a chance to be at effective range again.
Also, with the high damage values of the loch, considering the target is already damaged from previous mines - components like light guns, balloon and armor are a lot more likely to go down from that extreme damage burst further crippling the enemy ship.
That is my take on lochnagar for a gunner on the mine launcher.
What ammos do I usually bring for mine lancher and why:If we are talking about an
engineer, I am sure a lot will agree that neither are good for him, you wanna go for more range variety - usually lesmok and less often ammo types that decrease the arming range depends on the pilot's flying style and/or the enemy ship's type and loadout/flying style.
As for
gunner, I am an avid user of lochnagar as I already mentioned, and lesmok is a must. Which leaves us with only a third ammo type to choose from. I personally like more range difference than just the ~66m/~165m/~280m(that loch/normal/lesmok provide) so I choose my third ammo type to be a range changing one other than burst/charged. I think they are both inferior to more range choices for I can lay down fire at the enemy all the time and not be dependent on range as much, I feel like constant damage and turning of the enemy ship is a much more effective way of approaching the mine launcher rather than getting a higher damage per shot.
A conclusion which leads me to my third ammo type to be heatsink rather than incendiary, yes, an unorthodox pick. However, with the difference of only ~15.5m from the incendiary mine in arming time and a detonation radius of 20m for the mine, you are theoretically able to hit every single target with both inc and heatsink at the same range, you just have to have better placement. I like the added utility of heatsink for the awesome rotation speed boost from a mere 30 deg/s to 45 deg/s(horizontal) and 20 deg/s to 30 deg/s(vertical) and the added benefit of extinguishing your own weapon which we all know never gets a visit from an engineer unless overheated on the bottom of a junker or until fighting is over. The only downside is 17% less damage, which are in my opinion negligible in the light of the added functionality for the mine launcher(especially when you realize that the loss of damage is 30 for balloon, 13 for armor, 10 for guns and engines and 25 for hull. The added functionality outweighs the damage reduction by so much it's ridiculous not to use it.).
As for people who might argue that incendiary has a better chance of starting fires, the fire rate increase of the mine launcher with incendiary is a mere 0.2 fires per shot increase and a measly 0.05 fires per second increase, so yeah...
That is why I use Lesmok/Heatsink/Loch, heatsink is just a better pick functionality wise than incendiary, and if they get close enough I can always use lochnagar.
Now as for the original question of burst or charged for the mine launcher -If I couldn't take my usual 3 ammo setup and will be forced to pick one of the two, I would pick charged - and this is why:
Contrary to popular belief, more damage does not equal more thrust induced by the mines(nor on minotaur for that matter), nor does more aoe radius equal more thrust. Both ammo types have purely the same "knockback".
The argument goes down to the damage done by them.
Now, with a detonation radius of 20m, considering the mine haven't been placed inside that radius already, the aoe radius of a mine is 60m which means you will start losing aoe damage from this mechanic right here, after about 10m of ship penetration:
Which means you will do full damage for the first 10m of ship you hit and farther away, up till a point of 60m away from the mine, or 40m of "ship" you will hit 20% of the base damage - since it decreases linearly over distance after the 50% of the radius mark.
Which means with normal mines, you are able to deal unmodified, full damage to usually armor and balloon since they both are within 30m of the mine(exception could be galleon), and decreasing damage linearly away from the hit location to all guns and engines since they are more likely to be farther away from the hit location.
In that case, burst gives you the SAME damage for balloon and armor(exception could be galleon) however, it gives you a possibility of more damage to guns and engines by increasing the radius of the blast, BUT, due to the low damage multiplier of 0.6 in comparison to other component's damage multipliers, you do not actually gain a lot of bang for your bucks.
On the other hand, you have charged that will do +30% more damage to balloon and armor, which are the bulk of the damage done by mines because of high multipliers and will still damage guns and engines within the radius with more damage(not as much as burst but still an increase.)
The choice of charged over burst is because -
Burst allows you to damage guns and components more than charged with charged allowing for greater armor, hull and balloon damage(and a slight increase of damage to guns and engines) -
But there is no choice between the two according to playstyle, the damage multipliers of impact damage on components simply dictate that you are guaranteed to get a lot more benefit from charged than burst.
Hence why my answer every time someone asked me this question was charged, and still is charged.