ECTS credits: 3
Introduction to aerodynamics, performances, systems and technical maintenance of helicopters.
Introduction. Fundamentals of helicopter aerodynamics and performances. Types of joining of the main rotor blades (joints, semi-fixed and fixed rotors). Helicopter control (cyclic change of stroke, collective change of stroke, flying by course). Fundamentals of static and dynamic stability. Stabilisers. Main rotor and its head: structure and driving properties. Tail rotor and its head: structure and driving properties. Rotor arms: structure and driving properties. Helicopter fuselage: structure and parts. Helicopter propulsion and power transmission: types of engine and drives, reduction gears. Basic vibration analyses. Co-conical property of the main and tail rotor blades. Static and dynamic balancing of aerodynamic bearing surfaces. Materials for the manufacturing of helicopter assemblies and elements. Effect and significance of icing.
Recognition of the feature and function of particular helicopter parts. Recognition of the nature and type of load on particular parts of helicopter airframe. Assessing the effect of possible damage of the airframe on the helicopter airworthiness. Comprehension of the airframe maintenance technology.
Having passed the exam, the student will be able to: 1. Classify and categorise helicopters according to type and purpose. 2. Assess helicopter performance characteristics following the user documentation. 3. Classify the significance and complexity of correlations between particular elements of the helicopter airframe and their impact on safe flight. 4. Assess the importance of external factors (meteorological, chemical, mechanical, electrical etc.) on helicopter systems. 5. Assess the pertinence and justifiedness of the repair technology applied on the helicopter airframe and systems. These learning outcomes contribute to the following outcomes of the study programme: - Distinguish aircraft maintenance according to MSG-2 and MSG-3 concepts. - Distingusih single parts of an aircraft in relation to the physical laws of flying and functioning of aircraft systems. - Apply standard maintenance procedures prescribed in the aircraft maintenance programmes. - Make a diagram of change of the centre of gravity in compliance with the aircraft design performances, and with the operational limitations for aircraft flying and maintenance, as a result of the aircraft weighing.