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B-52 Driver >> B-52 Driver >> Questions for ex or present real buff pilots
https://www.captainsim.org/forum/csf.pl?num=1453976339

Message started by so666 on Jan 28th, 2016 at 10:18am

Title: Re: Questions for ex or present real buff pilots
Post by Mustang1977 on Jan 29th, 2016 at 1:24pm
Greetings,

I welcome your commitment with the B-52  :)

But, first of all, optimations in the Flight Dynamics are very difficult to change because the core of the FD are in the *.air file.

For me, I have taken the changes here in the forum and found a compromise between the mod and the Original. The problem is the correct (max) Speed and AOA while curising. If you use the FD-Mod found here as is, the speed is too low and the AOA too high. Takeoff and Landing with this Mod is ok, but I don't like the high AOA and low (unrealistic) speed.

If you would try my settings, here are my settings in the aircraft.cfg:


Code (][WEIGHT_AND_BALANCE):

max_gross_weight = 488000
empty_weight = 183535

reference_datum_position     =   0, 0, 0    // (feet) distance from FlightSim Reference position: (1/4 chord, centerline, waterline)
empty_weight_CG_position     =  -7, 0, 0    // (feet) longitudinal, lateral, vertical distance from specified datum

max_number_of_stations = 50

station_load.0  =   168.0,       64.5,      -2.0,       8.0    //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)
station_load.1  =   170.0,       64.5,       2.0,       8.0    //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)
//station_load.2  =   354.0,          0,       0.0,       0.0    //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)
station_load.2  =   354.0,       60.5,       0.0,       8.0    //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)
station_load.3  =     0.0,        0.0,       0.0,       0.0    //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)

station_name.0  =  "Pilot"          
station_name.1  =  "Co-Pilot"       
station_name.2  =  "Crew"
station_name.3  =  "Internal Weapons"            

;Moments of Inertia
empty_weight_roll_MOI    = 13352310
empty_weight_pitch_MOI   = 24223159
empty_weight_yaw_MOI     = 39531785
empty_weight_coupled_MOI = 0

[fuel]
//Tank, Longitudinal (feet), Lateral (feet), Vertical (feet), Usable(gallons), Unusable (gallons)
LeftAux   =    -14.0,  -52.14,   -6.8,   4905.0,    6.0 //No. 1 Main
RightAux  =    -14.0,   52.14,   -6.8,   4905.0,    6.0 //No. 4 Main
LeftMain  =      5.6,  -25.68,   -4.3,   6834.0,   25.0 //No. 2 Main
RightMain =      5.6,   25.68,   -4.3,   6834.0,   25.0 //No. 3 Main
LeftTip   =    -31.46, -78.9,    -8.9,   1051.0,    7.0 //Left Outboard Wing
RightTip  =    -31.46,  78.9,    -8.9,   1051.0,    7.0 //Right Outboard Wing
Center1   =     16.4,    0.0,   -12.3,   2053.0,    4.0 //Fwd Body
Center2   =      7.2,    0.0,   -12.3,   3458.0,   12.0 //Center Wing
Center3   =     -6.7,    0.0,   -12.3,  15500.0,   21.0 //Mid + Aft Body
External1 =    -23.0,  -77.3,   -11.5,    700.0,    5.0 //Left External
External2 =    -23.0,   77.3,   -11.5,    700.0,    5.0 //Right External

[flaps.0]
type             = 1                                    
span-outboard    = 0.8                                 
extending-time   = 60                                  
flaps-position.0 = 0                                    
;flaps-position.1 = 10                                    
flaps-position.1 = 20                                    
;flaps-position.3 = 29                                  
;flaps-position.4 = 30                                  
;flaps-position.5 = 31                                  
;flaps-position.6 = 32                                  
;flaps-position.7 = 33                                  
;flaps-position.8 = 34                                  
flaps-position.2 = 35               
damaging-speed   = 250                                 
blowout-speed    = 270                                 
//lift_scalar = 1.0
//drag_scalar = 1.0
//pitch_scalar= 1.0
lift_scalar = 0.5  //0.58//0.75//1.1
drag_scalar = 1.2
pitch_scalar= 1.2  //1.5 last
system_type = 1                                //Hydraulic

[flight_tuning]
//cruise_lift_scalar     = 1.0
//parasite_drag_scalar   = 1.0
//induced_drag_scalar    = 1.0
cruise_lift_scalar=1.0 //1.5 last worked
parasite_drag_scalar=1.0 //1.7 last worked
induced_drag_scalar=1.0 //1.8 last worked
elevator_effectiveness=0.7
aileron_effectiveness=0.4
rudder_effectiveness=1.0
pitch_stability=1.0
roll_stability=1.4
yaw_stability=1.0
elevator_trim_effectiveness=1.0
aileron_trim_effectiveness=1.0
rudder_trim_effectiveness=1.0

[GeneralEngineData]
engine_type=1                               //0=Piston, 1=Jet, 2=None, 3=Helo-Turbine, 4=Rocket, 5=Turboprop
Engine.0 =  20, -60, -10
Engine.1 =   0, -34, -8
Engine.2 =   0,  34, -8
Engine.3 =  20,  60, -10
fuel_flow_scalar   = 0.80                   //Scalar for fuel flow efficiency
min_throttle_limit = -0.50;                 //Minimum percent throttle.  Generally negative for turbine reverser

[TurbineEngineData]
fuel_flow_gain=0.002               //Gain on fuel flow
inlet_area=16.00               //Square Feet, engine nacelle inlet area
rated_N2_rpm=29900               //RPM, second stage compressor rated value
static_thrust=30000                  //Lbs, max rated static thrust at Sea Level (2X 14550)
//inlet_area=17.0
//rated_N2_rpm=29920
//static_thrust=30000
afterburner_available=0                   //Afterburner available?
reverser_available=0                   //Thrust reverser available?
ThrustSpecificFuelConsumption=0.52

[jet_engine]
thrust_scalar=1.0


As you see, this is not the whole aircraft.cfg, you have to copy and paste the sections in question.

I also modified the Flaps: Now there are only 2 Positions: 50 % and Full. The sections between are not needed for TO and Landing. This saves time and nerves  ;)

And your answer for your 2. question is also in my cfg as above. I think this is the correct amount of fuel as you can see at, eg. wikipedia.

I hope this helps, I know the FD are not 100 % accurate, but for me it is ok and it is better than the original.

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