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A fact from Greek submarine Delfin (1912) appeared on Wikipedia's
Main Page in the Did you know column on 21 October 2007. The text of the entry was as follows:
An English-language source I consulted corroborates most of this but gives a different date for the torpedo attack:
"The Greeks also had the war's only submarine, the French-built Delfin, which became the first undersea boat to fire a self-propelled torpedo in action. In the attack, on 22 December 1912, the Delfin targeted the Ottoman cruiser Mecidiye from a distance of 800 meters, but the torpedo missed the mark."
From: Sondhaus, Lawrence (2001). Naval Warfare, 1815-1914. Routledge. pp. p. 220.
ISBN0415214785. {{
cite book}}: |pages= has extra text (
help) In any case might be worth adding as an English-language source to corroborate the "first torpedo" claim. --
Delirium06:05, 21 October 2007 (UTC)reply
The different date results from the discrepancy of the Gregorian and Julian calendars. Greece used the Julian system until 1922, so there is a difference of 13 days. I am however including the reference. Thanks!
Cplakidas18:22, 21 October 2007 (UTC)reply
The Greek WP says that this happened on Nov. 21st, (
[1]) which is 13 days before Nov. 9th, as if the latter is the old calendar and Nov. 21 the new. But this is not sourced.--
Euzen (
talk)
09:37, 29 October 2012 (UTC)reply
You refer to Delfin both as it and she; pick one or the other.
Done
small depth of the flood port I think you mean diameter, not depth.
The source states depth, since the book is bilingual (Greek + English) I doubt it is a typo because it says depth in both languages.--
Catlemur (
talk)
17:13, 4 January 2024 (UTC)reply
@
Sturmvogel 66: Diving was done with the flood ports closed and the vent valves open. It is estimated that this move was done purely because handling of the flood ports was easier, than that of the vent valves, and so partial filling of the ballast tanks, due to the pressure of the air in them, was avoided and, a negative inclination from the out of proportion inflow of water in the bow and stern ballast tanks, was also avoided. In emergency situations, in order for the submarine to surface, the vent valves closed and with the flood ports open, air from the air-cylinders was channeled in, under great pressure, in the top parts of all ballast tanks. That should be all.--
Catlemur (
talk)
21:32, 23 January 2024 (UTC)reply
That still makes no sense as the flood ports are the only way that water enters the ballast tanks. I don't doubt that you're saying what your sources say, but I think that it would be best if we summarized this further to say that care had to be taken when flooding during a dive to prevent the bow taken too step an angle, rather than get into the technicalities.--
Sturmvogel 66 (
talk)
20:23, 27 January 2024 (UTC)reply
@
Sturmvogel 66: I added that great caution had to be exercised during the procedure. Or did you have something else in mind? I am not quite sure what kind of phrasing you suggest I use.--
Catlemur (
talk)
14:54, 30 January 2024 (UTC)reply
Link pressure hull, trials, commissioning, diving depth, barge
Done
I think that external hull is better than light hull
Done
It's not readily apparent to a casual reader that the collars and the frames are the same, IMO.
Done
Who originally ordered the subs? Or were they speculative builds by Schneider?
The source does not directly state who ordered it, but a speculative build is implied. The Navy of Peru ordered its Palacios submarine from Schneider slightly prior to the Greek order.--
Catlemur (
talk)
17:13, 4 January 2024 (UTC)reply
Delfin spotted Mecidiye, the cruiser Berk-i Satvet and four destroyers sailing straight towards their estimated course in preparation for the attack. This confuses me as it's not clear who was steering for whom. Do you mean to say that the Ottoman ships' course was going to intercept that of Delfin?--
Sturmvogel 66 (
talk)
02:27, 19 January 2024 (UTC)reply
Better, but I've reworked it. Feel free to revise it if you dislike my changes. Don't forget that there are still a couple of points that need to be addressed.--
Sturmvogel 66 (
talk)
12:11, 21 January 2024 (UTC)reply