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How does flex temp work?
The flex temp procedure recognizes that an ambient temperature beyond the flat rating produces less thrust. If a lower-than-flat-rated thrust is calculated for a particular take-off that thrust can be specified by where it coincides with the EGT limit. This false ambient temperature is the flex temp.
What is Tref and TMAX?
TREF is the certified power output of the engine at sea level – A320 46ºC. ( Flat rated Temp) TMAX is the Max OAT certified for take-off. So to make a FLEX take-off you must have your Assumed Temp sitting Above TREF and Below TMAX. TOGA take-off must be made if you cannot achieve a Temp greater than TREF.
What does Flex mean in flying?
An assumed temperature takeoff (also known as “flex” on Airbus/Fokker aircraft) is where the engine thrust is reduced to match the performance on a higher-temperature day, up to either the maximum thrust reduction allowed or the maximum assumed temperature that meets takeoff distance requirements.
What is the flat temperature?
Quoting MD11Engineer (Reply 21): This means you can push the throttle all the way forward, but the actual maximum thrust will be limited by the engine control via the ambient temperature. The ambient temperature up to which the engine´s maxiumum thrust is available is called the “Flat Rate Temperature”.
What is RTOW?
RTOW is the limiting takeoff weight calculated for a particular runway under particular specified conditions. Maximum Take Off Weight – The maximum weight in which an aircraft can ever take-off, under any circumstances.
What does flexing mean slang?
to show off
What else does flex mean? Flex is a slang term meaning “to show off,” whether it be your physique, your belongings, or some other thing you consider superior to those of others. The act of flexing is often criticized as a power move, considered arrogant and insincere.
What is the difference between Flex and toga?
“FLEX” is the standard takeoff thrust setting used on Airbus aircraft, unless departing a contaminated (wet / icy) runway or if performance constraints (short runway or hot and high) exist, in which case TOGA (full thrust) is used.
Why do you use a flex temp for thrust?
The flex temp procedure recognizes that an ambient temperature beyond the flat rating produces less thrust. If a lower-than-flat-rated thrust is calculated for a particular take-off that thrust can be specified by where it coincides with the EGT limit. This false ambient temperature is the flex temp.
Is the flex temp a false ambient temperature?
If a lower-than-flat-rated thrust is calculated for a particular take-off that thrust can be specified by where it coincides with the EGT limit. This false ambient temperature is the flex temp.
How does the flex temp work in a plane?
This false ambient temperature is the flex temp. The flex temp is entered into the flight management system (FMS) — effectively telling the computer to assume the specified air temperature instead of the actual temperature. When flex (FLX) thrust is selected during take-off, the engine control produces that thrust.
How to calculate your flex temp for current conditions?
*FLEX TEMP: is a temperature that we put in the FMS so that the FADEC misleads the engine to assume more temperature than it actually is and thus obtain a lower thrust. Ok, how do we calculate our FLEX TEMP for current conditions?