S1:Hello, Captain. Glad to meet you again. And it's really a pleasure to come on board your ship. Do you still remember me? My name is John Smith.S2:Oh, how are you, Mr. Smith? I do remember you. We met a year ago. I'm so glad to see you again.S1:Captain, I see that your ship is heavily laden. What is your draft now?S2:8.5 meters.S1:If so, you can't enter the harbour right now. You have to wait for high tide.S2:It's unfortunate. How long shall we have to stay here?S1:About two hours, I think. So there's no hurry. Let me ask you something about your ship's particulars if you don't mind.S2:Not at all. Go ahead, please.S1:What is your engine, Captain, diesel or turbine?S2:Diesel. She is single-screwed and her propeller is right-handed.S1:Any errors on your gyrocompass?S2:Yes, about 2 degrees plus.S1:How about the steering gear and telegraph?S2:They are both in good working order.S1:How many revolutions does the propeller make at full speed?S2:120RPM.S1:How long will it take to reveres the engine from full ahead to full aatern?S2:Not more than 18 seconds. But please note that she is slow in going astern.S1:Thank you so much. Your advice is useful for me to pilot your ship into the harbor.S2:You're welcome. Q3:What type of engine is the vessel?