ἐνήρης means " equipped with oars " , so it's impossible that " - ήρης" means "oars"
I would have thought the opposite: if 'eneres' means 'equipped with oars', then '-eres' should mean 'oars' when used with reference to a ship. Or was that what you intended to say?
Sorry, I copied from my notes the wrong sentence.
The right one is:
εύήρης means " well equipped " and after
εύήρετμο means " well rowing " or "effective oars" (from εύ and ἐρετμόν)
so it's impossible that " - ήρης" means "oars"
(Write the right letter in greek is not easy and often the words from on-line dictionary are wrong, damned accents). (see photo)
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MAS is " Motoscafo antisommergibile" (see photo)
Rizzo was brave and a lucky captain but the SMS Szent István was badly designed and builted worse .
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But I like to return to the rostrum of the ten.
The rostrum from Haifa is greater than Aegadi ones.
I read that it weighs half a ton.
So comparing its dimension to the support on the wall in the sanctuary I think that the rostrum
of a ten was 1 time and half greater and could weighs almost 2 tons.
But, how effective this weapon was?
I remember a story:
The whaler Essex was sunk by "Moby Dick".
The ship was 27 m. long and 238 tons and the hull was stronger than the hull of an ancient galley
because builted with a different technique.
The sperm whale hit the ship two times and finally sank it.
The whale move at 2-3 kn speed and was long almost as the Essex so I presume a whale of 150 tons.
So an impact at 90 degrees at 2-3 kn also without a suitable rostrum is fatal.
I presume that at 30 degrees of impact the attacking ship have to move at 7-8 k to make significative damage.
Think about it