An excellent video - so much great info for the cadet mariner about to sit for their company exams.

cheers mate, saved me an hour of research

@daylenhigman8680

4 жыл бұрын

*Watched in 1.5speed

I know of a kitchen rudders which we used to use in the British Navy. Well, it is the same principles used on the reversals of jet engines on planes so there is no need to describe it. One could steer going backwards with it.

Thanks for your work

@Marineonline

7 жыл бұрын

You Welcome Sir.

Highly educative

What beautiful presentation!

@Marineonline

7 жыл бұрын

Thanks

Thanks for the video....................................... & THUMBS UP :D

Nice video congrats

Great presentation indeed...

Excelente produto.

@Marineonline

6 жыл бұрын

Thanks Sir.

We learned alot from this.thanks

Thank you

@Marineonline

6 жыл бұрын

Thanks for your Comment.

thank you

@Marineonline

7 жыл бұрын

You Welcome. Like, share and comment.

Nice video

Thank you so much my ser 🌹

@Marineonline

3 жыл бұрын

So nice of you

Thanks you.

@Marineonline

4 жыл бұрын

Thank you.

Marine Online I saw that some videos have links to further explanations. these videos take part in some online training? I'm looking for btm, brm and naval architecture courses. Thanks. @marine online

motori, propulzioni tutto da buttare via nella spazzatura e scafi pure...tutto completamente posso innovare ma costo carissimo....Saluti

Good motor

Great video... Sucess

@Marineonline

7 жыл бұрын

Thanks.

Please more in next 😘

Can u please tell me what engine capacity including diesl requirement is needed to drive a boat between long distance islands, say up to 2, 000 kms? Does the size of the engine matter, taking into account the need for lower diesl costs etc?

@khoatran9482

4 жыл бұрын

googel long range trawler

Zabardast

What these metal bumps on the rudder and nozzle are for (13:33) ? Thank you .

@MCASDI

6 жыл бұрын

Probably cathodic electrolysis protection (zincs). Protecting the bronze propeller.

@scottpalmer1919

6 жыл бұрын

Zinc sacrificial anodes. Reduces galvanic corrosion due to dissimilar metals.

Can anybody explain me how you can have a drive shaft driving a propeller without having water flooding the boat? Is it the same system in surface ships and submarines? Thank you.

@willgaukler8979

4 жыл бұрын

Vasco Carvalho ...now I ‘m a fly boy myself but lesser water pressure on the surface ship .. might be a factor ... where the sub is in much higher pressure ...

@tmtan1303

3 жыл бұрын

That's a complex seals system which includes several seals to be assembled together, spring to push it for mating with polished surface,... which you will not see in any commercial catalogue...

@Bendigo1

3 жыл бұрын

One method is to use a grease box where the hull meets the water and the shaft goes through. It is literally a box filled with grease. The grease allows the prop shaft to rotate but keeps water out.

Add eco surface drives

Well read

I did heavy equipment service engineering can I be able to fix ships

What is the value of k?

@ariesmight4141

6 жыл бұрын

Paul Angelos Filippakis. Two over pie ÷ E over I × R.

@oleksandrvolkovych2069

6 жыл бұрын

Paul Angelos Filippakis й

Admin dmet se hai💃💃

bang, mau tanya. untuk part number filter berapa ya.terima kasih

@proboprobopriyonggo5917

2 жыл бұрын

untuk part number hyd filter sir?

The math at 19:04 makes no sense whatsoever. In the text presentation of the problem the speed of the ship (V) is stated as 20 knots (nautical miles per hour or 0.67 nm/min) and the turn radius (R) is 0.5 nautical miles. If k=180° ÷ π = 57.3° then in the stated formula k÷60 can be rounded to 1° (though the unit of measure for 60 is undefined), thus (V ÷ R) • (k÷60) = (0.67 nm/min ÷ 0.5 nm) • 1° = 1.3°/min. But the author fills in the blanks with values not stated in the text of the problem. He enters a speed (V) of 3 (no units of measure) and how the author arrived at this value after stating in the text that (V) = 20 knots is not revealed & enters a turn radius (R) of 22 (Again, there are no units of measure and again the author does not reveal how he arrived at this value when the text states the turn radius (R) = 0.5 nautical miles) thus arriving at a value of 3 ÷ 22 = 0.1°/min or 6°/hour (rounded down from the more accurate 0.14°/min or 8.4°/hour - an underestimate of 29%) thus arriving at a calculated 15 hours to make a 90° turn ( or 10 hours 47 minutes if one doesn't round down his result). It's entirely possible I've missed something as I am neither a navigator nor a ship handler. If so then I'd be happy to be corrected.

@Marineonline

6 жыл бұрын

Thanks.

WE SHOULD INVEST HEAVILY ON JET PROPULSION TECHNOLOGY

Only what is not true is that a ships engine is not economical at high rpms the ships engine is laid out so that at normal sailing speed she is most efficient and uses as little feul as is possible if you for example use 30% of power it will be less efficient

Every heard of electric propulsion ?

The spelling of manoeuvring broke my brain.

Why is he reading what is on the chart? I can read. Tell me something else.