Dave Gerr - Boat Mechanical Systems Handbook-How to Design, Install, and Recognize Proper Systems in Boats
Chapter 9:Dry Exhaust Systems Figure 9-24. To allow good airflow, 30 per- cent of the exhaust trunk (length ¥width) should be op ...
PART THREE:EXHAUST SYSTEMS Figure 9-26. Exhaust-ejector ventilation: aft opening (Courtesy Caterpillar, Inc.) Figure 9-27. Exhau ...
Chapter 9:Dry Exhaust Systems Figure 9-28. Multiple-exhaust stacks Figure 9-29. Water-jacketed exhaust pipe ...
PART THREE:EXHAUST SYSTEMS Figure 9-30. Air-jacketed exhaust ...
Chapter 9:Dry Exhaust Systems jacket can get fairly hot and will eventually lead to corrosion in the jacket (as we saw with wate ...
PART THREE:EXHAUST SYSTEMS Figure 9-31. Crewboat exhaust (section) Figure 9-32. Crewboat exhaust water injection detail ...
Chapter 9:Dry Exhaust Systems Drystack Versus Wet Exhaust Though wet exhaust systems are most com- mon on boats, there appears t ...
EASE OFTRACKING ANDFIXINGLEAKS. This, too, is a bit deceptive. The piping in a wet ex- haust system is straightforward and gener ...
Part Four RUDDERS AND STEERING SYSTEMS CHAPTER 10 Rudders and the steering systems that con- trol them make it possible for a bo ...
PART FOUR: RUDDERS AND STEERING SYSTEMS All hydrofoils—rudders are really hydro- foils, not simply “boards”—are more efficient i ...
Chapter 10: Rudder Geometry, Shape, and Size The greater the distance the rudder is aft of this combined center, the greater the ...
hinges entirely at its leading edge, with no area projecting forward at all. Finally, rud- ders may be spade rudders, with no be ...
Chapter 10: Rudder Geometry, Shape, and Size all hydrofoils and of airfoils as well.) Accord- ingly, the center of water force d ...
Real-World Problem with Too Much Balance An interesting example of a real problem cre- ated by too much balance is presented in ...
Chapter 10: Rudder Geometry, Shape, and Size Formula 10-2. Rudder Area for Displacement and Semidisplacement Powerboats RA%= 5. ...
with 10 to 15 percent more area than indicated in the formula. Sportfishing boats and ferries fall into this category. There’s s ...
Chapter 10: Rudder Geometry, Shape, and Size of the leading edge, and a gently convex trail- ing section terminating at a point. ...
Flat Sections with Tapered Ends Much is made of the optimum airfoil section. Such airfoil sections are best, assuming that budge ...
Chapter 10: Rudder Geometry, Shape, and Size We started with a simple wedge-shaped, transom-hung rudder from Marine Hard- ware. ...
for the foil sections discussed above. Note that the section thicknesses are half-breadths. Metal Flat-Plate Rudders Many commer ...
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