Steam Yachts And Launches, Their Machinery And Manegement: a Review of the ...
Steam Yachts And Launches, Their Machinery And Manegement: a Review of the ...
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In our eReader you can find the full English version of the book. Read Steam Yachts And Launches, Their Machinery And Manegement: a Review of the ... Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Steam Yachts And Launches, Their Machinery And Manegement: a Review of the ...
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To quickly assess the difficulty of the text, read a short excerpt:
In several tests made under different conditions in a steam yacht with one of these screws, 6 ft. diameter, 9 ft. pitch, a gain of three per cent, was made over the speed of other screws.
They leave the water behind comparatively smooth, and do not churn it up, neither does a vessel propelled by this style of screw have a tendency to settle aft, and there is less vibration and trem- bling on the vessel.
The Duncan propeller, made by Messrs. Ross & Duncan, of Glasgow, Scotland, is very favorably... known for its excellent results.
I04 The Screw.
The blades are formed to a combination of curves, and are not of the plain helical construction. The chief peculiarity is a quick curvature near the tips, concave to the driving side, as can be seen in the illustration.
This form was adopted, because all propellers act with a certain amount of slip, necessary to give the propulsive reaction, and there is always a corresponding amount of centrifugal action on the water.
Fig. 56. — Duncan's Patent Screw Propeller.
What to read after Steam Yachts And Launches, Their Machinery And Manegement: a Review of the ...?
You can find similar books in the "Read Also" column, or choose other free books by C P Kunhardt to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In several tests made under different conditions in a steam yacht with one of these screws, 6 ft. diameter, 9 ft. pitch, a gain of three per cent, was made over the speed of other screws.
They leave the water behind comparatively smooth, and do not churn it up, neither does a vessel propelled by this style of screw have a tendency to settle aft, and there is less vibration and trem- bling on the vessel.
The Duncan propeller, made by Messrs. Ross & Duncan, of Glasgow, Scotland, is very favorably... known for its excellent results.
I04 The Screw.
The blades are formed to a combination of curves, and are not of the plain helical construction. The chief peculiarity is a quick curvature near the tips, concave to the driving side, as can be seen in the illustration.
This form was adopted, because all propellers act with a certain amount of slip, necessary to give the propulsive reaction, and there is always a corresponding amount of centrifugal action on the water.
Fig. 56. — Duncan's Patent Screw Propeller.
What to read after Steam Yachts And Launches, Their Machinery And Manegement: a Review of the ...?
You can find similar books in the "Read Also" column, or choose other free books by C P Kunhardt to read onlineMoreLess
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