What is performance class 1 helicopter?
A helicopter with performance such that, in case of critical power-unit failure, it is able to land on the rejected takeoff area or safely continue flight to an appropriate landing area, depending on when the failure occurs (ICAO).
What is performance class 2 helicopter?
Performance Class 2 helicopter (ICAO definition) A helicopter with performance such that, in the case of critical power-unit failure, it is able to safely continue the flight, except when the failure occurs prior to a defined point after take-off, or after a defined point before landing, in which case a forced landing …
What is helicopter theory?
Helicopter Theory (Dover Books on Aeronautical Engineering), a book by Wayne Johnson, is a comprehensive guide that provides detailed information on how to fly a helicopter. It describes the fundamental concepts of helicopter aerodynamics and flight dynamics as well as all the other relevant advanced topics.
What is performance class A?
3. Aeroplanes Performance Class A. 3.1. Take-off Mass. (a) The take-off mass does not exceed the maximum take-off mass specified in the aeroplane flight manual for the altitude of the aerodrome and for the ambient temperature existing at the time of the take-off.
What is the meaning EASA?
European Union Aviation Safety Agency
EASA. European Union Aviation Safety Agency.
What do you mean by performance of helicopters *?
A helicopter’s performance is dependent on the power output of the engine and the lift produced by the rotors, whether it is the main rotor(s) or tail rotor. Any factor that affects engine and rotor efficiency affects performance. The three major factors that affect per formance are density altitude, weight, and wind.
What is a cat a takeoff?
The theory behind Cat. A takeoffs is to keep a clear landing area below and slightly forward of the aircraft while ascending vertically, until reaching the CDP. The pilot can either land the aircraft, or fly away on the remaining engine by trading off some of the altitude for VTOSS, or vertical takeoff safety speed.
What is the difference between category and class?
As nouns the difference between category and class is that category is a group, often named or numbered, to which items are assigned based on similarity or defined criteria while class is (countable) a group, collection, category or set sharing characteristics or attributes.
What is the definition of a high performance airplane?
A high-performance airplane is defined as an airplane with an engine capable of developing more than 200 horsepower. A complex airplane is an airplane that has a retractable landing gear, flaps, and a controllable pitch propeller.
How do helicopters work?
Unlike airplanes, helicopters feature spinning wings called blades or rotors on top. As a helicopter’s blades spin, they create a force called lift that allows the helicopter to rise into the air. The rear rotor can face different directions, allowing the helicopter to move forward, backward, and sideways.
What does it mean for a helicopter to be performance class?
Performance classes I, II and III indicate, in a decreasing order, the capability of the rotorcraft to safely land or continue flight in the event of an engine failure. Performance class III, for example, means the helicopter will have to force-land in the event of engine failure. All single-engine helicopters come under this classification.
What does Class 3 mean on a helicopter?
Performance classes I, II and III indicate, in a decreasing order, the capability of the rotorcraft to safely land or continue flight in the event of an engine failure. Performance class III, for example, means the helicopter will have to force-land in the event of engine failure.
What are the factors that affect a helicopter’s performance?
A helicopter’s performance is dependent on the power output of the engine and the lift produced by the rotors, whether it is the main rotor(s) or tail rotor. Any factor that affects engine and rotor efficiency affects performance. The three major factors that affect performance are density altitude, weight, and wind.
What does cat a mean on a helicopter?
When Cat A helicopters are operated in conformity with laid down profiles and performance charts in the rotorcraft flight manual (RFM), it ensures a guaranteed stay-up capability in the event of a critical engine failure. Cat B, on the other hand, means a single-engine or a multi-engine helicopter that does not meet Cat A standards.