The ANSWERS: Q.O.T.W. 11 APR 2014
Background information and photo (s) presented when the Questions of the Week (Q.O.T.W.) answered below were originally posted may be found here: Anti-subD 641marine Q.O.T.W. 11 APR 2014.
Q & A
1. An "anti-submarine" vessel is shown transiting a "cut". The nation which launched this ship has no destroyers in its entire navy. What are the ship's nationality and type? ANS: The ship is the French navy's (Marine Nationale Française). It is a type F70 "anti-submarine" frigate en route to the Black Sea for Ukraine crises.
2. What are the name, hull number, and top speed of this ship? ANS: MNF Dupleix (D 641) has a top speed of 30 knots.
3. What is its crew complement (officers and men)? ANS: 20-22 officers and 145 sailors.
4. With what anti-submarine equipment is this ship armed? ANS: • 10 L5 Mod4 torpedoes
• 2 L5 torpedo launchers
• 2 Lynx WG13 Mk.4 helicopters, each with DUAV4 sonar, Rheseda system for acoustic data transmission, and 12 Mark 46 torpedoes
5. What are the vessel's draft and the canal's mean depth (in feet)? ANS: MNF Dupleix's draft is 19 ft versus the canal's nominal depth of 26 ft.
6. What is the purpose of that buoy to which the ship appears tied? ANS: What appears to be a buoy in last week's photo is actually a canal tug seen from a head-on perspective.
7. What is the name of the canal and how does its length compare to the Panama Canal? ANS: The Corinth Canal's is 3.9 miles in length (the Panama Canal is 12 times longer at 48).
8. Did the pictured canal have strategic value in WW2? ANS: Yes, serious damage was inflicted on the canal during World War II by both by both British and Nazi forces, when it was twice the scene of fighting due to strategic importance.
9. This canal has a fairly unusual submarine feature; what is it? ANS: The Canal has submersible bridges [ YouTube video] at either end. When a vessel approaches, the bridges are submerged allowing ships to proceed.
Submarines are always silent and strange.