What is CPP system?

In Controllable or Variable Pitch Propellers (CPP), the propeller blades are attached to the boss and their pitch can be altered via a hydraulic system. The blades are removable so if they incur damage, can be repaired without removal of the whole propellor.

What is the difference between CPP and FPP?

CPP propeller blades can rotate around their axis, FPP is fixed and can’t rotate. This is a type of propeller with blades that rotate around their own longitudinal axis and influence the direction of thrust. This is a type of propeller with fixed blades that cannot rotate.

What is an OD box?

As its name implies, the oil distribution (“OD”) box of the CPP system distributes oil (the preferred hydraulic fluid) from a pressurized source to the main servo in the hub. The pressure oil supply line is connected to a supply port in the OD box housing.

What is the drawback of using a CPP?

When C++ used for web applications complex and difficult to debug. C++ can’t support garbage collection. C++ is not secure because it has a pointer, friend function, and global variable. No support for threads built-in.

Why CPP is advantageous than FPP?

With CPPs the pitch can be increased as the vessel speed and load increase. For a FPP the pitch will be too high during acceleration, and can overload the engines. Higher efficiency: In general, when operating a vessel in various off-design conditions, the efficiency of a CPP is far better than for a FPP.

What is a fixed pitch?

Description. A fixed pitch propeller is the simplest of propeller designs and is associated with many light, piston engine aircraft. The angle of attack of a fixed pitch propeller is set at installation and cannot be changed during aircraft operation.

What is the difference between fixed and variable pitch?

As the names imply, the core difference between the two prop designs involves the orientation of the blades relative to the propeller hub. Pitch affects the way a propeller blade will slice through the air. A fixed pitch propeller has its pitch determined at the factory when the propeller is made.

What is the difference between a fixed pitch propeller and a controllable pitch propeller?

Unlike fixed pitch propellers whose only operational variable is rotational speed, the controllable pitch propeller provides an extra degree of freedom in its ability to change blade pitch.

What are the advantages of CPP?

Advantages of C++

• Portability. C++ offers the feature of portability or platform independence which allows the user to run the same program on different operating systems or interfaces at ease.
• Object-oriented.
• Multi-paradigm.
• Low-level Manipulation.
• Memory Management.
• Large Community Support.
• Compatibility with C.
• Scalability.

Why is CPP used?

In contrast to C, it supports object-oriented programming features like classes. Like C, it is used when a low-level programming language is necessary. While C++ is commonly used for graphics-heavy software such as games, photo and video editing apps, browsers, C is more widely used for embedded devices and OS kernels.

What kind of propulsion system does Kamewa make?

Previous products from Kamewa has been the A-series, a mix flow pump in aluminum, the SII and P62 pumps in stainless steel and the Kamewa Advanced Propulsion Systems (APS) Waterjet developed specifically for the Volvo Penta diesel engine. Kongsberg also produces Kamewa and Kamewa Ulstein propellers.

Is the Kamewa water pump still in use?

The Kamewa waterjets are still traded by Kongsberg Maritime under that name and are offered in five product lines in two product series: An axial flow aluminium pump except for impeller, shaft and cylinder rods that are made of duplex stainless steel, primarily for lower power density boats.

Where did the brand name Kamewa come from?

Kamewa started as a brand name of the controllable-pitch propellers manufactured by KMW. KMW was founded in the city of Karlstad in 1860. KMW also manufactured pulp and paper machines for paper mills and hydro power turbines. Kamewa was acquired by the British company Vickers plc in 1986.

When did Kamewa become part of Rolls Royce?

KMW also manufactured pulp and paper machines for paper mills and hydro power turbines. Kamewa was acquired by the British company Vickers plc in 1986. In 1999, Rolls-Royce acquired Vickers. In 2019 the Commercial Marine part of Rolls-Royce was acquired by the Kongsberg group and integrated into its maritime division Kongsberg Maritime.