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Increasing Engine Power

Featured Replies

Would like to know how to increase engine power in the aircraft config file. The aircraft i want to increase power on is a A321-200. I'm having issues with only being able to climb at about 1000 ft a min and as low as 500 the higher i get and i'm not as cruise level.

Thanks for the help everyone.


Here is my general engine data for the aircraft in question.

[generalenginedata]
engine_type=1
fuel_flow_scalar=1.086
Engine.0=6.500000,-18.95,-5.125
Engine.1=6.500000,18.95,-5.125
min_throttle_limit=-0.43
max_contrail_temperature = -30

What numbers do i change? If someone could copy and paste in a reply some new numbers it would be greatly appreciated.


Here are my autopilot settings for this aircraft as well. Anything that would help climb better would be a great help.

[autopilot]
autopilot_available=1
flight_director_available=1
default_vertical_speed=1000
autothrottle_available=1
//use_no_default_pitch= 1
//use_no_default_bank= 1
pitch_takeoff_ga=18
autothrottle_arming_required= 1
autothrottle_takeoff_ga= 1
autothrottle_max_rpm= 100.0
default_pitch_mode=0
default_bank_mode=0
max_pitch= 10.00
max_pitch_acceleration= 2.00
max_pitch_velocity_lo_alt= 4.00
max_pitch_velocity_hi_alt= 1.50
max_pitch_velocity_lo_alt_breakpoint= 20000
max_pitch_velocity_hi_alt_breakpoint= 24000
max_bank= 25.00
max_bank_acceleration= 2.0
max_bank_velocity= 3.0
max_throttle_rate= 0.30
nav_proportional_control= 12.00
nav_integrator_control= 0.05
nav_derivative_control= 0.01
nav_integrator_boundary= 0.5
nav_derivative_boundary= 0.35
gs_proportional_control= 15.0
gs_integrator_control= 0.30
gs_derivative_control= 0.00
gs_integrator_boundary= 0.7
gs_derivative_boundary= 0.00
yaw_damper_gain= 1.00


[jet_engine]
thrust_scalar=1.00


[TurbineEngineData]
fuel_flow_gain=0.00247
inlet_area=29.3000
rated_N2_rpm=14950.000000
static_thrust=25166.000000 //IAE V2533-A5 corrected value. Actual T/O 31600 MCP 26950.
afterburner_available=0
reverser_available=1
bypass_ratio=4.50

 

 


Would like to know how to increase engine power in the aircraft config file. The aircraft i want to increase power on is a A321-200. I'm having issues with only being able to climb at about 1000 ft a min and as low as 500 the higher i get and i'm not as cruise level.

 

The parameter you want is "static_thrust=".  However, rather than changing it, it would make more sense to figure out why you are having a problem.  You didn't say who designed the aircraft or where you got the FDE (aircraft.cfg + .air files), but most designers know what they are doing when  they set this parameter.

 

This might be proper behavior depending on the altitude and weight of the aircraft.  Some other things to consider: Is the plane above or at its maximum gross weight?  What is the outside air temperature?  Some addons can cause high temperatures at intermediate or high altitudes which will seriously degrade engine performance.  At what altitudes are you having problems and what is the air temperature.   Also in some situations, the flaps can appear  to be retracted but the sim sees them as extended - sometimes this has been known to happen when FSUIPC is used to control flaps, for example. 

 

Mike

 

                    bUmq4nJ.jpg?2

 

  • Author

The aircraft came from project airbus and the config came with the plane. It doesn't matter where i fly to i have the same problem.

 

 


It doesn't matter where i fly to i have the same problem.

 

They are a very reputable developer.  What is the gross weight of the aircraft and the altitude when you have the issue?

Mike

 

                    bUmq4nJ.jpg?2

 

  • Author

My gross weight is the max weight of the aircraft. It's generally full. I can't climb hardly at all more than a 1000 ft per min or l lose airspeed and stall.

 

 


I can't climb hardly at all more than a 1000 ft per min or l lose airspeed and stall.

 

At what altitude and what is the air temperature?  Are you using a weather addon?

 

Mike

 

                    bUmq4nJ.jpg?2

 

Somehow, the PA A321 IAE came with only 25166 lbs of thrust, instead of the 31600 lbs these engines are rated for. To fix this, look in the aircraft.cfg for this line:

 

static_thrust=25166.000000 

 

Change it for this:

 

static_thrust=31600//25166.000000 

 

Now you'll get decent performance with the A321. Hope this helps.

Best regards,
Luis Hernández 20px-Flag_of_Colombia.svg.png20px-Flag_of_Argentina.svg.png

Main rig: self built, AMD Ryzen 7 5700X3D (with SMT off and CO -50 mV), 2x16 GB DDR4-3200 RAM, Nvidia RTX 5060Ti 16GB, 256 GB M.2 SSD (OS+apps) + 2x1 TB SATA III SSD (sims) + 1 TB 7200 rpm HDD (storage), ID-Cooling SE-224-XTS air cooler, Viewsonic VX2458-MHD 1920x1080@120-144 Hz (G-sync compatible), Windows 11. Running P3D v5.4 (with v4.5 scenery objects as an additional library, just in case), FSX-SE, MSFS2020, MSFS2024 and even FS9! Lossless Scaling for all my sims. What a godsend...

Mobile rig: ASUS Zenbook UM425QA (AMD Ryzen 7 5800H APU @3.2 GHz and boost disabled, 1 TB M.2 SSD, 16 GB RAM, Windows 11 Pro). Running FS9 there .

VKB Gladiator NXT Premium Left + GNX THQ as primary controllers. Xbox Series X|S wireless controller as standby/mobile.

My gross weight is the max weight of the aircraft. It's generally full. I can't climb hardly at all more than a 1000 ft per min or l lose airspeed and stall.

 

Besides the information Luis supplied, you might wish to think about reducing the passenger load by 20 - 25 percent, the cargo load by the same and the fuel load to only enough for the flight you intend plus a reserve. That will also improve the planes performance and be much more realistic.

 

Regards

 

 


Would like to know how to increase engine power in the aircraft config file. The aircraft i want to increase power on is a A321-200. I'm having issues with only being able to climb at about 1000 ft a min and as low as 500 the higher i get and i'm not as cruise level.

 

 

 


Besides the information Luis supplied, you might wish to think about reducing the passenger load by 20 - 25 percent, the cargo load by the same and the fuel load to only enough for the flight you intend plus a reserve. That will also improve the planes performance and be much more realistic.

 

+1.  I just flew the PMDG 737-900, a similar size aircraft, w/ full pax and cargo, & maybe 70% fuel, and it was not climbing a whole lot better in the mid-20,000s.  It is very accurately modeled.

 

Mike

 

                    bUmq4nJ.jpg?2

 

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