Tech Block 3 Flashcards
- When are reduced thrust take off’s used?
o There is a long runway available
o MTOW is low
- What are the 2 methods for reduced take offs?
Fixed derate (i.e 10%-20%) - For a given ambient condition, the thrust reduction achieved by selecting another certified takeoff rating that is lower than the maximum takeoff rating.
Assumed temperature - Based on a certified takeoff rating and ambient condition, the thrust reduction achieved by selecting the rated thrust for a temperature that is higher than the outside air temperature.
- Using an assumed temperature reduced thrust take off, what speed corrections are there?
o V1 is reduced to allow for slower acceleration but other speeds are the same for the actual TOW
- Factors that affect the engine thrust…
o Mass airflow increases…Thrust increases
o Temp increases…Thrust decreases
o Humidity increases…Thrust decreases
o Altitude increases..Pressure decreases…Thrust decreases
- What is ram effect?
As the aircraft increases speed the increase in density and mass flow through the engine results in an increase in thrust
- An increase in engine RPM results in…
o Higher mass air flow
o SFC decreases
o Higher temps
o Thrust output increases
- Two ways of measuring thrust are:
o EPR (the ratio of inlet pressure and turbine exit pressure) o N1 (low pressure rotor speed)
- Engine bleed air has what effect:
o EPR decreases (engine pressure ratio)
o EGT increases
o Thrust decreases
- What is a compressor stall / surge?
A reverse flow of air through the engine caused by unstable air
- Reverse thrust is most efficient at…
o high speeds
- Documents required for international flight?
o C of A o Aircraft F/Manual o Aircraft Registration o Flight Crew Licences o Valid Maint. Release o Load Sheet o Flight records o List of Crew & Passengers o Cargo bills of lading and manifests o List of disposable stores and spare parts o Route Guide
- What separation is provided by ATC between IFR & VFR traffic in Class “C” & “D” airspace?
o “C” IFR from IFR, VFR & SVFR
o “D” IFR from IFR, SVFR. IFR not from VFR, they are given traffic information.
o “E” IFR from IFR. IFR and VFR get traffic information. Shall not include control zones.
- When does the Runway Centreline Lights (RCLL) turn red?
o White to a point 914m from runway end.
o Alternate white &;a red between 914m & 300m.
o Red between 300m & the runway end.
- Definition of CAVOK?
o The term CAVOK is an acceptable contraction (meaning Ceiling and Visibility OK) for international use. It indicates that:
o No clouds exist below 5,000 feet or below the highest minimum sector altitude, whichever is greater, and no cumulonimbus are present.
o Visibility is 10 kilometres or more and,
o No precipitation, thunderstorms, sandstorm, dust storm, shallow fog, or low drifting dust, sand or snow is occurring.
- What are the classes of dangerous goods?
o Class 1 Explosives Every
o Class 2 Gasses Girl
o Class 3 Flammable Liquids Likes
o Class 4 Flammable Solids Sex
o Class 5 Oxidising Substances Orally
o Class 6 Poisonous / Infectious substances Plus
o Class 7 Radioactive substances Receiving
o Class 8 Corrosive agents Cum
o Class 9 Those that don’t fit above, eg magnetic materials
- If the static port blocks during the climb, what will the altimeter read?
o Whatever the reading was at the time of the blockage.
- What is the definition of Part 121?
o Pax configuration of more than 30 seats (excluding crew member seats)
o Payload capacity of more than 3410 Kg
- What is the purpose of Part 119?
o To prescribe the certification requirements for operators to perform Air Operations and the operating requirements for the continuation of this certification. Air Operations include Air Transport Operations (ATO) and Commercial Transport Operations (CTO).
- What is the purpose of Part 61?
o Prescribes the requirements to hold pilot licences and ratings; the prerequisites for those qualifications; and their privileges and limitations.
