Cessna 185 airfile

stoney

stoney

SOH-CM-2023
I recently D/L'd J.R. Lucariny beautifully modeled C185 with it's many repaints. Problem is on take off it is extraordinarily sensitive in trim fore an' aft. No amount of trim changes seem to have the desired effect. Stick kick seems the rule as well. I tried to move the CG forward as I thought it seemed tail heavy, but not much helped.
Has anyone else had this issue and maybe fix it. Please let me know as I like the plane having flown the real one in days gone long by. Thanks.
 
I think this one had excessive yaw/torque on take-off too. I worked on the FD and will check them out again before offering them here.
I also think Milton S. has the dope on the torque. It is probably the cfg line

[GeneralEngineData]
engine_type=0
Engine.0=6.000, 0.000, 0.000
fuel_flow_scalar=1.000
min_throttle_limit=0.000000

If the bold is other than shown the torque will be strong. So make sure it is 0.00 which might do the trick.
 
Well, from my research on this release, the flight model was for fun and not meant to be realistic. See this update that explains it:

http://www.simviation.com/fs2004props156.htm

"This update modifies the contact points of the main gear and tail wheel. Now the wheels are set at ground level instead of slightly underneath the ground as seen on the original aircraft. Also engine horsepower increased to 350hp and stall speed with flaps down is decreased to 45 knots. This may not sound like a realistic modification (and it isnt) but hey, its flightsim, so whatever. The plane now lifts off the ground at a more reasonable distance, just adjust the prop to 2400rpm at 500ft. no manifold pressure limit so go wide open until you run out of gas!. I use the Cessna 206 sound set by Carenado (payware) but you can alias the default mooney sounds for a more realistic sound. Have fun with the Cessna 185."
 
Gee, Thanks Aeromed and Milton for the great response! That should take care of it. Funny, I Googled it six ways to sunday and missed the Simviation update.
 
I did a quick look and am almost done. Make a back-up copy of the aircraft cfg then just copy and paste the sections below over the relevant cfg sections. Note that some sections are partial so be careful to only replace the lines given.
I consulted videos, specs, and my own limited flight experience to arrive at what I have but anyone with real time in these should speak up so I can make it as real as I can. Performance is with sliders 3/4 towards realistic. The extra wheel points are an experiment to prevent pitching over on braking while keeping a good settled attitude while otherwise on the ground.

[WEIGHT_AND_BALANCE]
reference_datum_position= 0.000, 0.000, 0.000
empty_weight_CG_position= -1.000, 0.000, 0.100
max_number_of_stations=50
station_load.0= 300, 18.0, 0.0, 3.0
station_load.1= 0, 0.0, 0.0, 0.0
station_load.2= 0, 0.0, 0.0, 0.0
empty_weight= 2000.000
empty_weight_roll_MOI= 2037.000
empty_weight_pitch_MOI= 5000.000
empty_weight_yaw_MOI= 2800.000
empty_weight_coupled_MOI= 0.000
max_gross_weight= 2780.000
CG_forward_limit= 0.000
CG_aft_limit= 1.000
[airplane_geometry]
wing_area= 190.000
wing_root_chord= 4.917
wing_dihedral= 1.736
wing_twist= -2.999
[GeneralEngineData]
engine_type= 0
Engine.0= 6.000, 0.000, 0.900
fuel_flow_scalar= 1.000
min_throttle_limit=0.000000
[piston_engine]
power_scalar=1.000
[propeller]
thrust_scalar=1.000
[Reference Speeds]
flaps_up_stall_speed= 54.000
full_flaps_stall_speed= 43.200
cruise_speed= 133.831
max_indicated_speed=170.000000
[flight_tuning]
cruise_lift_scalar=1.000
pitch_stability=1.000
roll_stability=0.500
yaw_stability=1.000
parasite_drag_scalar=1.000
induced_drag_scalar=1.000
elevator_effectiveness=1.000
aileron_effectiveness=0.800
rudder_effectiveness=0.800
elevator_trim_effectiveness=0.800
aileron_trim_effectiveness=1.000
rudder_trim_effectiveness=1.000
[contact_points]

point.0= 1, -17.91, 0.00, -1.40, 3500, 0, 0.51, 42, 0.19, 2.50, 1.08, 0.00, 0.000, 0.000, 0.000, 0.000
point.1= 1, 3.30, -4.00, -6.10, 3500, 0, 0.51, 0, 0.26, 2.50, 0.62, 0.00, 0.000, 2.000, 0.000, 0.000
point.2= 1, 3.30, 4.00, -6.10, 3500, 0, 0.51, 0, 0.26, 2.50, 0.62, 0.00, 0.000, 3.000, 0.000, 0.000
point.3= 1, 2.00, -4.00, -6.00, 3500, 1, 0.51, 0, 0.26, 2.50, 0.62, 0.00, 0.000, 2.000, 0.000, 0.000
point.4= 1, 2.00, 4.00, -6.00, 3500, 2, 0.51, 0, 0.26, 2.50, 0.62, 0.00, 0.000, 3.000, 0.000, 0.000
static_pitch= 11.630
static_cg_height= 4.820
[Flaps.0]
type= 1
span-outboard= 0.500
extending-time= 7.000
system_type= 0
damaging-speed= 0.000
blowout-speed= 0.000
lift_scalar= 1.000
drag_scalar= 1.200
pitch_scalar= -0.500
flaps-position.0= 0.000, 0.000
flaps-position.1= 12.666, 0.000
flaps-position.2= 25.332, 0.000
flaps-position.3= 37.999, 0.000
[brakes]
toe_brakes_scale=0.5
parking_brake=1
 
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