Tailshaft Intermediate bearing Thrust bearing Sterntube Intermediate shaft Main engine
1—rudder 2—propeller
2.These are single-lever controls, the single lever controlling both propeller pitch and engine speed(现在分词独立主格作状语), either through pneumatic circuits operated by cams （后置定语） driven by a common shaft, or by electronic means.(P167)
2. Focus
1.the function of the transmission system 2.what does this system include?and their function? 3.the function of the thrust block 4.the function of the sterntube bearing 5.the working principle of the propeller 6.types of the propeller on ship 7.How does CPP work? 8.the passive voice
3.The great majority of large CPP have their hydraulic servomotor in the hub to operate the blade palms(目的状 语) via push rods or a crankpin-sliding block mechanism.
3. Analysis of Long and Difficult Sentences
1.The aftermost tunnel bearing has a top and bottom bearing shell because it must counteract the propeller mass and (it must)take a vertical upward thrust at the forward end of the shaft(后 置定语).(P166)
Push rod
Crankpin-sliding block
4.It is usual practice to take control of both engine and CPP by separate levers in the MCR after starting machinery, switching to bridge control from the MCR before leaving harbour.P167
It为形式主语，to take…是真正的主语。
5.A sealing arrangement is provided(passive voice) at either end of the tailshaft with the propeller and cone completing the arrangement.p166
Halogenated hydroncarbon extinguisher---useflu on electrical fire
Play a video about fire in the machinery space
5海上消防机舱火灾.WMV
Review Questions
1. Why is the transmission system used on a ship?
Reading material: portable fire extinguisher
Soda-acid extinguisher---useful on carbonaceous fire
Chemical foam extinguisher--useful on oil fire
Carbon dioxide and dry powder extinguisher ---useful on chemical fire
1. Vocabulary
Shafting, transmit (from…to)—transmission (transmission system), be made up of, include, thrust shaft(推力轴)，intermediate shaft(中间 轴)，thrust block(推力块)，sterntube bearing(尾轴管轴承)，cone, integral, cater for—provide, quarter, boss, pitch, be fitted with
2. the construction of the system 3. the working principleHAFTING AND PROPELLER
1. Vocabulary 2. Focus
3. Analysis of long and difficult sentences
4. Some choices related to the competency test
5. Firefighting Video