Straight 5 type *** is the first kind of successful manufacturing in our country, the main force in China's early days, and has made a significant contribution to the modernization of our country, today let us understand the technical characteristics of the straight 5 type.
Technical parameters of Straight 5 type ***:
Main rotor diameter: 21 meters.
Main rotor area: 346 square meters.
Height: 44 meters.
Total weight: 725 tons.
Engine: Piston-7 engine with a power of 1770 hp.
Empty weight: 5121 tons.
Maximum speed: 210 km/h.
Rate of climb: 43 meters per second.
Practical ceiling: 6000 meters.
The Z-5 has a classic single-rotor tail rotor layout, with its rotors rotating to the left and 4 blades, which are fixed by articulation. The paddles of this hybrid structure are composed of steel tube girders and wooden frames covered with plywood and cloth, and the planar shape of the paddles is trapezoidal. After 1966, this kind of propeller was improved to an all-metal glued paddle, which is mainly composed of girders, comb joint rear sections, propeller tips and other parts. At this time, the blade plane is rectangular, and the airfoil used is the variable thickness NACA230M type and the NACA230 type. The blades are attached to the hub by a steel joint with 4 holes, which ensures stability during flight. The tail rotor is a 3-blade propulsion type, which can be manipulated at a variable range during flight, providing more power and stability for flight. The cockpit of the Z-5 is a two-seater design, and the compound control system makes it easier for the driver to operate. This design was a relatively advanced design method at the time, which could improve the safety and efficiency of flight. In general, the design of the Z-5 fully reflects the technical level and development direction at that time, and is one of the most representative ones.
The powerplant of the Z-5*** was carefully designed as an air-cooled star-shaped 14-cylinder "Piston-7" engine, which was equipped with a unique drivetrain clutch, as well as an axial cooling fan with guides. This sophisticated design gives the Z-5*** superior performance, especially at its maximum power of 1,700 horsepower. The engine of the Z-5*** converts powerful power into speed and power of flight. Its maximum flight speed can reach an astonishing 210 km/h, which undoubtedly makes it the best in its class. And its maximum range can reach 520 kilometers, which improves mission efficiency.
In addition, the Z-5*** engine also has excellent cooling performance. Axial cooling fans effectively remove the heat generated by the engine, ensuring that the engine remains in top condition even after long periods of operation. This unique design enables the Z-5*** to operate for a long time in a variety of extreme environments, providing stable and powerful power support for performing various tasks. In general, the power plant of the Z-5*** provides a solid foundation for the excellent performance of the Z-5 with its high efficiency, stability and durability. Whether it is from the point of view of flight speed, range or engine cooling performance, the Z-5*** can be regarded as stable in the 50s
The Z-5 aircraft is a classic aircraft with a fuselage structure consisting of three parts: the fuselage middle, the tail boom and the diagonal beam. This semi-monocoque riveted structure is known for its robustness and stability, giving the Z-5 superior flight performance. In the front of the fuselage is the engine compartment, where a powerful engine is housed, which powers the flight of the aircraft. The middle section of the fuselage is the core part of the Z-5 aircraft, which has a volume of about 16 cubic meters. This spacious cabin has 2 entrances, one of which is located at the rear of the cabin and consists of two fixed hatches. The design of these two doors takes into account both the tightness of the interior of the cabin and the convenience of loading technical equipment and other large cargo. The other entrance is located on the left wall of the fuselage and is designed for personnel entry and exit and airdrop skydiving. Such a design fully takes into account the needs of the Z-5 aircraft when performing diverse missions.
The tail boom and diagonal beam, as the other two parts of the fuselage, are closely connected to the middle section of the fuselage. The tail boom is responsible for the balance and direction control of the aircraft, while the diagonal beam provides support and cushioning during take-off and landing. This structure allows the Z-5 to remain stable and achieve precise handling during flight. Overall, the fuselage design of the Z-5 aircraft is sophisticated and practical, and its semi-monocoque riveted structure gives the aircraft a sturdy fuselage and stable flight performance. This design fully considers the needs of the aircraft when performing diverse missions, making the Z-5 a highly acclaimed model in history.
The cockpit pilot's cockpit is located in the upper front part of the fuselage and is an important part of the entire aircraft. There are 2 comfortable seats installed in the cabin for the driver and co-pilot. The seats are made of high-quality materials for excellent support and comfort, and you can stay comfortable even during long drives. The cockpit is also equipped with a compound control system, including various gauges, control panels and joysticks. These devices can display various information of the aircraft in real time, such as altitude, speed, heading, etc., and can also complete various operations, such as take-off, cruise, landing, etc. The design of the compound control system makes the pilot more comfortable when operating the aircraft, and improves flight safety.
The cockpit has 2 sliding side doors for easy access for the driver and co-pilot. The side door is made of high-strength materials for durability and safety, and is able to remain stable in a variety of harsh environments. In addition, the cockpit is also connected to the cabin, with hatches to facilitate the circulation of personnel. During the flight, the cockpit pilot's cockpit is an important hub of the aircraft. It is not only the workplace of the pilot and co-pilot, but also the entire aircraft control center. Through various devices in the cockpit, the pilot can monitor the status of the aircraft in real time and carry out precise control of the aircraft. At the same time, the cockpit is also a safe refuge in the event of an emergency, providing the necessary protection for the driver and co-pilot. In short, the cockpit is an important part of the aircraft, which not only provides a comfortable working environment for the pilot and co-pilot, but also ensures the safety and stability of the entire aircraft.
The landing gear is four-wheeled, very stable and reliable. The nose gear wheels can be automatically oriented without a brake mechanism, the wheels are 400 150 mm in size and are equipped with oil-air buffer struts, which can absorb impact forces during landing, protect the body and load. The main landing gear has an angular cone, has an oil-air cushion strut and wheels with brakes, the wheels have a size of 700 250 mm, which provides better support and braking performance.
During landing, the landing device can provide stable support and ensure the safety of the aircraft and payload. At the same time, the angular cone design of the main landing gear can reduce drag and noise, and improve the performance and comfort of the aircraft. The oil-air cushioning struts absorb the impact of landing, protecting the body and load from damage. Wheels with brakes can provide better braking performance and adapt to different landing situations.
In conclusion, the design of the landing gear takes into account a variety of factors, including support, braking, cushioning, and orientation, etc., to provide a stable, reliable, safe and comfortable landing. This design also reflects the meticulous consideration and technical skills of scientists, making an important contribution to the performance and safety of the aircraft.
Z-5*** has two sets of hydraulic systems that are independent of each other, namely the well-known main hydraulic system and the emergency hydraulic system. The two systems are connected in parallel inside the nacelle to provide hydraulic assistance to the control system. During the flight, the main hydraulic system and the emergency hydraulic system will work alternately to ensure the stability and safety of the flight operation. The main hydraulic system undertakes the main operational tasks, including flight control, take-off and landing operations, etc. It transmits the driver's control instructions to various actuators through a complex hydraulic pipeline network, so as to achieve precise control of the driver. The emergency hydraulic system is used as a backup for the main system, and once the main system fails, it can quickly take over the flight operation to ensure the safety of the main system.
In the electrical system, the Z-5*** is equipped with a straight F-6 generator and a 12-hk-28 battery. The generator provides the required power for the whole company, and the battery provides temporary power support for the company in case of emergency. The environmental comfort in the cockpit is also the focus of the Z-5***. The cabin is equipped with ventilation and heating to provide a comfortable working environment for the driver in all climates. In winter, the front windshield of the driver's cockpit is also equipped with an electric anti-icing device to prevent frost from affecting the flight. In order to cope with extreme weather conditions, the rotor and tail rotor blades are equipped with a liquid anti-icing system. This system can effectively prevent the freezing phenomenon on the surface of the paddle blades and ensure safe flight in bad weather conditions such as rain and snow.
In addition to the above-mentioned systems, the Z-5*** is also equipped with auxiliary equipment such as air conditioning system, fire extinguishing system, oxygen system, airborne and ambulance devices. These devices provide all-round safety for drivers and passengers, allowing them to stay calm and focused in any situation.
Lighting systems play an important role in aircraft, including landing lights, taxiing lights, navigation lights, paddle tip lights, formation lights, and lighting equipment in the pilot's cockpit. These illuminations not only provide the pilot with a clear and bright view, but also ensure the safe flight of the aircraft at night or in complex meteorological conditions. The on-board equipment is equipped with a set of pilot-navigation instruments and power plant monitoring instruments, which can provide real-time information about the aircraft, such as flight speed, altitude, direction, etc., as well as the operating status of the engines. These instruments not only provide the pilot with important flight information, but also ensure the safe flight of the aircraft at night and in complex meteorological conditions.
The communication system is also one of the important guarantees of flight safety. It includes equipment such as CT-1 radio station, WL-5 radio compass, WG-2A radio altimeter, JT-5A in-flight intercompass, etc. These communication devices can help pilots communicate effectively with other aircraft or ground control centers to ensure a smooth flight. At the same time, they can also provide necessary communication support in case of emergency, improving the safety of flights. In summary, equipment such as lighting systems, airborne equipment, and communication systems all play an important role, providing the necessary support and guarantee for pilots to ensure the safety of flight.
This total system can be in the 50s to 60s is still good, so that China's industry has a higher starting point. But in the 70s, this upgrade of both the cruising speed and the ceiling and service life are outdated, even so, this *** for China's industrial development to provide an important technical accumulation, ** for the construction and development of our country has made great contributions, is worthy of our memory.