15.01 Flashcards
What is the number value for acceleration?
9.8 m/s^2
Force =
Mass x acceleration
How is work done produced?
Moving an object over a distance
What is power in relation to work?
Power is the rate of doing work
What is energy described as?
Capacity of a body to do work
What can mechanical energy be divided into?
Kinetic and potential energy
What is kinetic energy?
Energy a body gets due to motion
What is Newton’s first law?
Law or inertia - a body remains at rest or in motion until another force acts on it
What is Newton’s second law?
Acceleration produced from a force acting on it is directly proportional to the force and inversely proportional to the mass
What is Newton’s third law?
Every action has equal and opposite reaction
What does GTE stand for?
Gas Turbine Engine
What is the order of the brayton cycle?
Induction - compression - combustion - exhaust
What do the engines supply to the aircraft?
Hydraulic power, electric power and bleed air
What are the two types of aircraft engine?
Piston and gas turbine
What are the different types of gas turbine engines?
Turbojet, turbofan, turboprop and APU
Explain turbojet engines
High speed, very loud
Explain turboprop engines
Aircraft speed, fuel efficiency
What do engines create to move forward?
Propulsion
How do the gas turbine, turboprop and turbofan produce thrust?
Accelerating ambient air
How do turboprop engines produce acceleration?
Small acceleration of a large quantity of air by a propeller
What engines do the turbo fan combine?
Turbojet and turboprop
What is the bypass ratio in a turbofan engine?
Ratio of air that passes through the fan duct compared to air that passes through the engine
What are the two engine construction types?
Modular and non-modular
What is the engine separated into?
Modules
What is the main aim for engine materials?
Strong enough for individual tasks but also light and as cheap as possible
