Orca attack

Cerebus said:
Well, sort of.

Never been on one.

I’ve seen very small animals attack much larger ones, so my question remains but has not been answered directly but slightly with ridicule. What was the post above about commercial vessels attacked (that my browser will not open)?

I know the whales travel the same routes as small fibre glass sailing cruisers.

I know nothing of passenger cruiser rudders. Big metal I guess?

I have read low frequency radio waves scares or disrupts whales. Submarines use them for comms. So I read…

VLF radio waves (3–30 kHz) can penetrate seawater to a few tens of metres and a submarine at shallow depth can use them to communicate. A deeper vessel can use a buoy equipped with an antenna on a long cable

A different frequency…
Scientists Find Sounds That Deter Killer Whales from Fish Nets

This article is not the one I read or need and is conflicting but interesting…

noted that the baleen whales in the flight group actually produce lower-frequency songs to prevent orcas from homing in on them.

Some Baleen Whales Sing at Low Frequency to Avoid Killer Whale Attacks
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Look up ‘Azipod’. They don’t have rudders, just drive pods. The pod would be something close to the size of a fully grown orca, but with a 3+ megawatt electric motor in it. Times 4. All mounted on a 1000ft ship moving at 15kn. No way, Jose.
 
We sailed through the area from Gib at the end of March, arriving Porto early April. We saw no Orcas. We looked at the previous attack data before leaving and managed to get ahead of the attacks. We hope to keep ahead of the Orcas as we go around Biscay in the next month. You can never be certain but it is worth doing some research before doing the trip either North or South and working out which months are likely to have the least Orca activity in the area you wish to go through. In general terms, the Orcas start the year in the South and slowly work their way North to Biscay from late June/July onwards.
 
mainsail1 said:
We sailed through the area from Gib at the end of March, arriving Porto early April. We saw no Orcas. We looked at the previous attack data before leaving and managed to get ahead of the attacks. We hope to keep ahead of the Orcas as we go around Biscay in the next month. You can never be certain but it is worth doing some research before doing the trip either North or South and working out which months are likely to have the least Orca activity in the area you wish to go through. In general terms, the Orcas start the year in the South and slowly work their way North to Biscay from late June/July onwards.
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In simple terms they follow the Tuna migration pattern which they have now modified to include the cruising yacht Biscay transit season
 
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