What is the maximum duty cycle for the APU start system?
APU starter motor duty cycle limit? 3 consecutive starts/attempts with a 1 minute cooling period between attempts.
What is the maximum APU rotor speed?
107%
APU EGT and Rotor Speed
| Maximum | 742°C |
|---|---|
| Maximum EGT for Inflight Start: | At or above 25,000 feet: 982°C |
| Below 25,000 feet: 900°C | |
| Maximum Rotor Speed | 107% |
How do I start my A320 APU?
External APU controls are located on the external power panel in the nose gear bay. To start the APU, first press the master switch button, then the start button. The start sequence begins when the APU inlet flap is fully open. To shut down the APU, turn off the master switch.
Where is the APU on an A320?
The APU is a small jet engine which is normally located in the tail cone of the aircraft but, in some cases, is located in an engine nacelle or in the wheel well.
How much fuel does a 737 APU burn per hour?
Q: About how much fuel per hour does a medium-sized aircraft such as the 737 burn? A: In round numbers, a 737 will burn 5,000 pounds (750 gallons) an hour.
Why should an APU be allowed a cool down period prior to shutdown?
It is recommended that the APU be operated for one full minute with no pneumatic load prior to shutdown. This cooling period is to extend the life of the turbine wheel of the APU. EGT limits marked and oil temp & pressure captions.
How high can the A320 go?
Plane facts and figures
| Aircraft type | Speed in km/u* | Altitude in ft* |
|---|---|---|
| Embraer 175 | 797 | 39,370 |
| Airbus A320 | 967 | 36,089 |
| Airbus A330 | 950 | 36,089 |
| Airbus A380 | 1.041 | 43,097 |
How fast does an Airbus A320 fly?
871 km/h
Airbus A320/Top speed
Why is my Apu not starting on my A320?
Select APU master on, wait a few seconds. Select APU starter switch, then nothing. APU does not start up. First noticed this with the FBW mod but it happens in the default aircraft as well. I’ve already tried deleting the mod and the ASOBO a320 and redownloading it.
When does Apu avail appear in Green?
APU AVAIL appears in green when APU N is above N > 99.5 % or 2 s after N is above 95 %. APU starts or shutdowns are permitted during refuel/defuel procedures. If it is necessary to operate a. An APU start is not permitted during a refuel/defuel procedure if the APU has failed to start or an
When does an APU need to be shut down?
APU starts or shutdowns are permitted during refuel/defuel procedures. If it is necessary to operate a. An APU start is not permitted during a refuel/defuel procedure if the APU has failed to start or an b. A normal APU shutdown must be completed if a fuel spill has occured during the refuel defuel procedure.
What is the maximum EGT of an APU?
It is a function of N duringstart, and a function of ambient temperature when the APU is running. Maximum EGT during start: 982 °C. ‐ 682 °C during at least 5 s. ‐ or, 700 °C to 742 °C depending on the ambient temperature. Adv: Displayed if the ECB detects a low APU oil lvl when the acft is on the gnd and the APU is not running.
