Convoys are actually set to spawn around correct dates
Providing I am reading the files correct
In SH3 and 4 the spawn rates were by minutes controlled from each convoy
GroupName=HX42Convoy ( GWX3 RND )
Category=0
CommandEntry=40
Long=-8866764.000000
Lat=4855298.000000
Height=0.000000
DelayMin=60
DelayMinInterv=7200
< divided by 60 divided by 24 = 5 days ( in reality a lil too often
In SH5 I cant find anything like that on the files but in the covoy.mis
( C:\Ubisoft\Silent Hunter 5\data\Campaigns\CampaignProjects\Total_Germany )
[LanesGraph.Node 21.NodeGroup 1]
Type=HX_
Name=HX
Country=British
Speed=9.000000
StartDate=19380101
EndDate=19451231
ReportPosTime=2170
ReportPosProbability=60
[LanesGraph.Node 21.NodeGroup 1.NGMission 1]
Name=Liverpool
ObjectiveType=0
TargetNode=Liverpool
PathNodes=
UsePath=false
CooldownMonths=0
CooldownDays=8.000000
< A guess but think this is time elapsed between convoys
CooldownHours=1
Priority=0
RewardPoints=0
StartDate=19390916
EndDate=19451231
A quick look at the HX series on
http://www.convoyweb.org.uk/hx/index.html gives approx 8 day sailings between convoys
What you may want to look at is the report info
ReportPosTime=2170
< 36 hours between reports
ReportPosProbability=60
< % chance of a map report
Am near totally convinced the cooldown days are what controls the gap between sailings