Intro (10-05-18) Flashcards
What document relates to Class B aircraft?
CS23
What document relates to Class A aircraft?
CS25
What defines a Class A aircraft?
All multiengine aircraft powered by turboprop with a max approved passenger seating configuration of more than 9 or a max TOM exceeding 5700kg.
All multiengine turbojets
What defines a Class B aircraft?
A propeller driven aircraft with a max approved passenger seating configuration of 9 or less and a max TOM of 5700kg or less
What defines a Class C aircraft?
Aircraft powered by reciprocating engines (piston engines) with a max approved passenger seating configuration of more than 9 or TOM exceeding 5700kg
What is measured performance?
The performance of an aircraft in flight test conditions
What is gross performance?
A more realistic measure of performance and what can be reasonable expected to acheive on the average day.
What is net performance?
Gross performance reduced down to ensure an acceptable level of safety
What is the acceptable safety?
a 1/1000000 chance of a failure that is followed by below net performance
On a graph of aircraft number vs performance quality, how do measured, gross and net performance relate to eachother?
Measured will be furthest up the quality scale but having less aircraft exhibitting said performance
Gross will be slightly worse than measured but where most aircraft will be.
Net will be the worst of the 3 with least aircraft occuring here.
What operational requirements are there for a Class A aircraft?
Must be able to suffer an engine failure at any point from start of TO to end of landing safely.
Operations are allowed on contaminated runways
Certain configuration deviations are allowed from a list
What operational requirements are the for a class B aircraft?
Engine failure only considered above 300ft
no contaminated runway operations
no configuration deviation list
What is the equation for thrust?
Thrust = mass of air x acceleration of air
What is the RAM effect and when does it have the largest effect?
As speed increases, thrust increases due to higher mass of air entering the engine.
Most effective at high speed.
What is the momentum drag effect and when does it have the largest effect?
Airflow is decelerated in front of the engine and then accelerated from this slowed speed causing less overall acceleration
More effective at low speed.
What is the relationship between jet thrust available and forward speed?
In the TO range thrust decreases due to momentum drag effect overcoming the RAM effect but after this range thrust increases due to RAM effect being more effective.
At the point where an engine becomes flat rated, what is thrust limited by left and right of that point?
Right is temperature limited
Left is pressure limited
