Rare philv Posted November 13, 2012 #1 Share Posted November 13, 2012 I was watching sailaway on the Ft. Lauderdale webcam on Sunday and was watching the Coral Princess depart. I noticed way up high on the smoke stack on back of ship what looked like two huge jet engines. I thought, is that for real? I did some research and the wikipedia entry for the Coral says the propulsion is two fixed pitch propellers driven by two diesel engines and two General Electric LM 2500 engines. I looked up the GE engines and they are described as turbo jet engines used on several cruise ships for power generation. Wow! Can anybody who has sailed on the Coral tell us what that sounds like? Link to comment Share on other sites More sharing options...
chrysalis Posted November 13, 2012 #2 Share Posted November 13, 2012 They only fire them up for water skiing demos. Link to comment Share on other sites More sharing options...
Esprit Posted November 13, 2012 #3 Share Posted November 13, 2012 They house parachutes on Island Princess. We were doing 25 mph last week to get to Aruba some nine hours early and the captain thought he may have to deploy them to slow us down Link to comment Share on other sites More sharing options...
as19111 Posted November 13, 2012 #4 Share Posted November 13, 2012 We did the Ultimate Ship Tour on the Coral in January. We were told they are merely decorative and serve no function for operating the ship. Link to comment Share on other sites More sharing options...
janacin Posted November 13, 2012 #5 Share Posted November 13, 2012 I was watching sailaway on the Ft. Lauderdale webcam on Sunday and was watching the Coral Princess depart. I noticed way up high on the smoke stack on back of ship what looked like two huge jet engines. I thought, is that for real? I did some research and the wikipedia entry for the Coral says the propulsion is two fixed pitch propellers driven by two diesel engines and two General Electric LM 2500 engines. I looked up the GE engines and they are described as turbo jet engines used on several cruise ships for power generation. Wow! Can anybody who has sailed on the Coral tell us what that sounds like? I once had the same question. From what I've been told, those pod looking structures are just a design element on the ship and don't provide any propulsion. Ther GE gas turbine generators are located elsewhere on the ship and don't provide any unusual noise. Link to comment Share on other sites More sharing options...
highheel girl Posted November 13, 2012 #6 Share Posted November 13, 2012 They are for decoration only. The gas turbines are located in the engine room. Link to comment Share on other sites More sharing options...
highheel girl Posted November 13, 2012 #7 Share Posted November 13, 2012 From RickEK..... Link to comment Share on other sites More sharing options...
highflyingrealtor Posted November 13, 2012 #8 Share Posted November 13, 2012 I'm thinking that's where they keep the breadsticks for the dining room. Hi, dry and safe from being broken up there. :D Link to comment Share on other sites More sharing options...
JEM4205 Posted November 13, 2012 #9 Share Posted November 13, 2012 they only fire them up for water skiing demos. LOL That's Funny :D Link to comment Share on other sites More sharing options...
Putterdude Posted November 13, 2012 #10 Share Posted November 13, 2012 and they can use them as reverse thrusters for coming along side.;) Link to comment Share on other sites More sharing options...
caribill Posted November 13, 2012 #11 Share Posted November 13, 2012 It is where the Cruise Director sleeps at night. Link to comment Share on other sites More sharing options...
RickEk Posted November 13, 2012 #12 Share Posted November 13, 2012 From RickEK..... That picture is actually from the Sapphire Princess. The nacelles are capped on the Sapphire and Diamond. On the Coral and Island, they are open and do help to channel air down to the gas turbine which is located in the funnel. And no, when they are operating, you can't hear any difference... Coral Nacelles by RickEk, on Flickr 1 Link to comment Share on other sites More sharing options...
shepp Posted November 13, 2012 #13 Share Posted November 13, 2012 We did the Ultimate Ship Tour on the Coral in January. We were told they are merely decorative and serve no function for operating the ship. Sure, that's what they tell you. If you found out the truth, they'd have to kill you. Link to comment Share on other sites More sharing options...
highheel girl Posted November 13, 2012 #14 Share Posted November 13, 2012 (edited) That picture is actually from the Sapphire Princess. The nacelles are capped on the Sapphire and Diamond. On the Coral and Island, they are open and do help to channel air down to the gas turbine which is located in the funnel. And no, when they are operating, you can't hear any difference... Coral Nacelles by RickEk, on Flickr When I binged it online your photo(s) came up, figured it was the Diamond or Sapphire do to the difference in the lack of decoration around them that the Island/Coral have. When the Island/Coral were first built there was a couple of photos (provided by Princess) floating around showing the actual turbines in a soundproof sealed room. I was trying to find them. Edited November 13, 2012 by highheel girl Link to comment Share on other sites More sharing options...
RickEk Posted November 13, 2012 #15 Share Posted November 13, 2012 When I binged it online your photo(s) came up, figured it was the Diamond or Sapphire do to the difference in the lack of decoration around them that the Island/Coral have.When the Island/Coral were first built there was a couple of photos (provided by Princess) floating around showing the actual turbines in a soundproof sealed room. I was trying to find them. Here's the fact sheet from GE if anyone is interested... http://www.geaviation.com/engines/marine/pdfs/datasheet_lm2500plus.pdf Link to comment Share on other sites More sharing options...
Shogun Posted November 13, 2012 #16 Share Posted November 13, 2012 Hi All I thought they only used them when Captain Kirk was onboard. yours Shogun Link to comment Share on other sites More sharing options...
Mom33 Posted November 14, 2012 #17 Share Posted November 14, 2012 Aren't they the fog horns? ;) Link to comment Share on other sites More sharing options...
TheBestIsYetToCome Posted November 14, 2012 #18 Share Posted November 14, 2012 Those have been converted to the new Cat IT cabins. Link to comment Share on other sites More sharing options...
Pam in CA Posted November 14, 2012 #19 Share Posted November 14, 2012 They are for decoration only.The gas turbines are located in the engine room. They were designed to indicate that the ship has a gas turbine engine. Link to comment Share on other sites More sharing options...
Rare philv Posted November 14, 2012 Author #20 Share Posted November 14, 2012 I was watching sailaway on the Ft. Lauderdale webcam on Sunday and was watching the Coral Princess depart. I noticed way up high on the smoke stack on back of ship what looked like two huge jet engines. I thought, is that for real? I did some research and the wikipedia entry for the Coral says the propulsion is two fixed pitch propellers driven by two diesel engines and two General Electric LM 2500 engines. I looked up the GE engines and they are described as turbo jet engines used on several cruise ships for power generation. Wow! Can anybody who has sailed on the Coral tell us what that sounds like? Well I'm glad we got that cleared up! Link to comment Share on other sites More sharing options...
Sailingpeace Posted November 14, 2012 #21 Share Posted November 14, 2012 They only fire them up for water skiing demos. But it doesn't always work. When we water skied on our last cruise , one was broken so we kept going in circles. Link to comment Share on other sites More sharing options...
janacin Posted November 14, 2012 #22 Share Posted November 14, 2012 Actually, they're turned on only when the ship needs some extra power when cruising uphill. Link to comment Share on other sites More sharing options...
lv2cruiseanywhere Posted November 14, 2012 #23 Share Posted November 14, 2012 I was watching sailaway on the Ft. Lauderdale webcam on Sunday and was watching the Coral Princess depart. I noticed way up high on the smoke stack on back of ship what looked like two huge jet engines. I thought, is that for real? I did some research and the wikipedia entry for the Coral says the propulsion is two fixed pitch propellers driven by two diesel engines and two General Electric LM 2500 engines. I looked up the GE engines and they are described as turbo jet engines used on several cruise ships for power generation. Wow! Can anybody who has sailed on the Coral tell us what that sounds like? We did the Ultimate Ship's Tour on the Coral Princess a couple of years ago. During that long and interesting behind-the-scenes tour, the question came up about the "jet engines" or whatever they were. Our tour guide told us they were the BRT's (Big Round Things) and were for decoration only. So we all began calling them the BRT's. Link to comment Share on other sites More sharing options...
sjfrany Posted November 14, 2012 #24 Share Posted November 14, 2012 They sure look cool, the ships without them look slower. Link to comment Share on other sites More sharing options...
Raamo Posted November 14, 2012 #25 Share Posted November 14, 2012 The turbine is not in the engine room - it's up around deck 14-15 (been a while since I was last on board the coral so I forget the floor number) You can go stand right by it (a wall separates you from it) and see all the grates etc venting it. The engineers on board would love to do away with those BRTs because they increase drag and weight - thus it's more expensive to move the ship with them. But that's an expensive task and won't happen. The turbine on the Island and Coral is one reason they are used in Alaska, they also have 2 heavy fuel generators which produces most of the electricity the ship normally runs on. If the two diesel generators can't produce enough power they'll turn on the turbine which is much much more expensive to run but also much cleaner. Link to comment Share on other sites More sharing options...
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