Someone must answer for this....

[blaze1093]

Funny. Since the pictures of the whale were posted, I've come across 3.

[gap]

Originally Posted by blaze1093

Funny. Since the pictures of the whale were posted, I've come across 3.

Where and when?

The following map has been posted elsewhere, but since we are at it, I'll post here a reminder of the realistic migration routes set by Trevally:

[Dogfish40]

I have had Hydrophone Contacts where the actual hydrophone station is giving me a contact, yet when I go racing in that direction....nothing. No ship sound, nothing, yet, the hydrophone is giving me a contact and direction. The only thing I could think of was Whales or Dolphins.
I will be looking a lot harder next time. I have the mod installed in the Stock campaign.

[gap]

Originally Posted by Dogfish40

I have had Hydrophone Contacts where the actual hydrophone station is giving me a contact, yet when I go racing in that direction....nothing. No ship sound, nothing, yet, the hydrophone is giving me a contact and direction. The only thing I could think of was Whales or Dolphins.
I will be looking a lot harder next time. I have the mod installed in the Stock campaign.

If you go hearing the "mistery" contacts yourself, you will easily spot the difference between usual contacts and our cetacean friends. In addition, whales are spotted by your watch crew and, when close enough, you can hear them through the hull or spot the water splashes of their blowhole and flukes. Dolphins are a bit harder to spot, but with some luck you should still be able to spot their wake

[blaze1093]

I spotted them on the migration route going south off of the west coast of England.

Edit: Late November and early December 1939, right along that migration route.