Surprising Sub Hunter Bonus

[canuckgamer]

In our last PBEM turn, the Allies received a +8 sub hunter bonus resulting in the sinking of a U-Boat group (5). There were two DD's in raider mode on a convoy route hex within 24 of the attacking subs so I would have expected +2. No Allied air were in range of the U-boats and according to the manual they would need the Detection tech for the bonus. No Allied CVs on a convoy route within 24 hexes either. There were 3 Allied CV's in Gibraltar that were within 24 hexes of the U-boats but they shouldn't have counted It is the largest bonus either of us have seen and don't remember 5 strength points of a sub being destroyed in one convoy attack. An anomaly or bug?

[Nirosi]

I have seen a full strength sub sink in a convoy attack before. No common, but far from impossible. The same way I have seen 10 MM sunk also in one attack. In a way it actually needs to be possible, if not not u-boats might be too hard to actually sink, if they never stay more than a turn at sea. A full u-boat sunk in one attack is exceptionaly rare in 1939, quite rare in 1940-41, rare in 42, not that rare in 43+ from my experience. And the more subs on the map, the more chances it happens of course.

I also have noticed ships in port giving their anti-sub bonuses as it seems that is what happened in your case (as then the +8 adds-up). This however might be a bug and not intended, no idea for sure. Alvaro would need to answer that.

[ncc1701e]

What was the convoy escort tech level vs the submarine tech level? Also, something to consider.

[AlvaroSousa]

sub vs escort tech is of vital importance.

If you want a good read on the battle of the Atlantic, Black May by Gannon shed a lot of light on the subject and is why my system is how it is for convoy attacks. I did have to modify it though as players were complaining it wasn't doing enough damage to the UK.

The original version we pretty historical.

[Nirosi]

Hi Alvaro,

I think the main question here was if naval units are supposed to give their sub-hunter bonus while in port. Right now they do it from inside the port, but we are not sure if they are supposed to do so or not.

[AlvaroSousa]

I will look at the code.

And ponder the question

[AlvaroSousa]

Sub hunter bonus....
I looked at the code..... patrol groups (DD groups in WPP) +1.
Air and CV groups +2
Now add on the tech

The escort bonus map clears every turn before it calculates.

Something had to be missed or misread. You sure you didn't read 8 escorts?

[stjeand]

Does the air unit with D&E have to be within 24 hexes of the subs to count?

[AlvaroSousa]

If I remember it is their range.