Mike Stone's CMC Leopard

[Firebar]

Does anyone know if there's an updated air file for Mike Stone's FS8 Leopard (the only model that I know of of that aircraft) cos the Leopard Inter model off Simviation has a rather odd flight profile (not to mention paint - the screenshot is one of prototype two that i did in about 10 minutes).

I've been trying to update the panel for ir for a while and had almost completed it (I have a diagram of the origonal layout) when i lost it in a hard disk crash...

Anyway to restate does anyone know of an aifile update?

Cheers M.

[Tom Clayton]

I know Mike never did one. When FS9 came out and he started updating the 2002 models, there were a couple that never got enough interest in the first place, so he didn't update those.

[Firebar]

hmm, thats a shame it has the potential to be a good model, its cretainly the only one of its kind around. I have a lot of interest in it (my dad was on the design team....) and can probabl get most of the data to make .air/.cfg but i don't have the knowledge....

M

[Firebar]

Thought I'd bring this up again to say that i've played with an airfile so that the Leopard flies a bit better, its been a total modification from another VLJ airfile. Anyway I was wondering if some people might be interested in having a play with it and seeing what they come up with. I peosonally think it still seems to underpowered at takeoff and too floaty on landing but I don't really know what to do about it.

Cheers M

[Firebar]

[fltsim.0]
title=Chichester-Miles Leopard
sim=leopard
model=
panel=
sound=
texture=
panel_alias=
sound_alias=
kb_checklists=
kb_reference=
atc_id=C9-BIL
ui_manufacturer=Chicester-Miles
ui_type=Leopard
ui_variation=Private INTER
description=Model by Mike Stone
atc_heavy=0
atc_airline=LAM
atc_flight_number=

[fltsim.1]
title=Chichester-Miles Leopard White
sim=leopard
model=
panel=
sound=
texture=white
panel_alias=
sound_alias=
kb_checklists=
kb_reference=
atc_id=G-BRNM
ui_manufacturer=Chicester-Miles
ui_type=Leopard
ui_variation=001
description=Model by Mike Stone

[General]
atc_type=CMC
atc_model=LEOPARD
editable=0
performance=Cruise Speed\t434 knots\nStall Speed\t82 knots(landing config)\nMaximum Range\t1,500 nm\nService Ceiling\t42,500 ft\nMax Takeoff Weight\t3,750 lb\nTakeoff Distance\t2,750 ft\nLanding Distance\t2,700 ft\nSeating\t\t1 or 2 pilots, 1 to 3 pax\nUseful Load\t1,850 lb\nPowerplant\t2× Williams\n\t\tFJX-1 turbofan engines\nLength\t\t24 ft 8 in\nWingspan\t\t23 ft 6 in\nHeight\t\t6 ft 9 in

[WEIGHT_AND_BALANCE]
max_gross_weight=3750 // (pounds)
empty_weight=1900 // (pounds)
reference_datum_position=0.0, 0.0, 0.0
empty_weight_CG_position=0.0, 0.0, -1.0
max_number_of_stations=5 //Weight (lbs), longitudinal, lateral, vertical positions from datum (feet)
station_load.0=130.0, 5.8, -1.0, -0.7 //pilot
station_load.1=130.0, 5.8, 1.0, -0.7 //pax
station_load.2=130.0, 2.0, -1.0, -0.5 //pax
station_load.3=130.0, 2.0, 1.0, -0.5 //pax
station_load.4=200.0, -1.75, 0.0, 0.0 //Luggage
;Moments of Inertia
empty_weight_roll_MOI=12131.0
empty_weight_pitch_MOI=22706.0
empty_weight_yaw_MOI=13932.0
empty_weight_coupled_MOI=0.0

//0 Class
//1 Longitudinal Position (feet)
//2 Lateral Position (feet)
//3 Vertical Position (feet)
//4 Impact Damage Threshold (Feet Per Minute)
//5 Brake Map (0=None, 1=Left, 2=Right)
//6 Wheel Radius (feet)
//7 Steer Angle (degrees)
//8 Static Compression (feet) (0 if rigid)
//9 Max/Static Compression Ratio
//10 Damping Ratio (0=Undamped, 1=Critically Damped)
//11 Extension Time (seconds)
//12 Retraction Time (seconds)
//13 Sound Type

[contact_points]
point.0=1.000, 8.500, 0.000, -3.050, 1600.000, 0.000, 0.350, 45.000, 0.100, 1.500, 1.000, 3.000, 3.000, 0.000, 0.000, 0.000
point.1=1.000, -1.000, -4.000, -3.350, 1800.000, 1.000, 0.500, 0.000, 0.500, 1.000, 1.000, 3.000, 3.000, 2.000, 0.000, 0.000
point.2=1.000, -1.000, 4.000, -3.350, 1800.000, 2.000, 0.500, 0.000, 0.500, 1.000, 1.000, 3.000, 3.000, 3.000, 0.000, 0.000
point.3=2.000, -3.000, -12.000, -1.000, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 5.000, 0.000, 0.000
point.4=2.000, -3.000, 12.000, -1.000, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 6.000, 0.000, 0.000
point.5=2.000, -12.000, 0.000, -1.000, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 9.000, 0.000, 0.000
point.6=2.000, 12.000, 0.000, -1.000, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 4.000, 0.000, 0.000
static_pitch=0.000
static_cg_height=3.500
gear_system_type=0

[electrical]
max_battery_voltage=12.0
generator_alternator_voltage=13.8
max_generator_alternator_amps=40.0
;BusType, MaxAmpLoad, MinVoltage BusTypes:0=MainBus,1=AvionicsBus,2=BatteryBus,3=Ho tBatteryBus,4-7=Generator/AlternatorBus(1-4)
avionics_bus=0, 5 , 9.5
avionics=1, 5 , 9.5
additional_system=0, 2 , 9.5
marker_beacon=1, 2 , 9.0
fuel_pump=0, 5 , 9.0
light_nav = 0, 5 , 9.0
light_beacon = 0, 5 , 9.0
light_landing = 0, 5 , 9.0
light_taxi = 0, 5 , 9.0
light_strobe = 0, 5 , 9.0
light_panel = 0, 5 , 9.0
engine_generator_map = 1,1

[hydraulic_system]
electric_pumps=1
engine_map=1,1,0,0
normal_pressure=3000.000000

[fuel]
LeftMain= -2.00, -1.00, -0.20, 78.00, 1.00
RightMain= -2.00, 1.00, -0.20, 78.00, 1.00
fuel_type=2.00
number_of_tank_selectors=1
electric_pump=1

[flight_tuning]
elevator_effectiveness=1.00
aileron_effectiveness=1.00
rudder_effectiveness=1.00
pitch_stability=4.00
roll_stability=2.00
yaw_stability=2.00
elevator_trim_effectiveness=4.00
aileron_trim_effectiveness=1.00
rudder_trim_effectiveness=1.00

[airplane_geometry]
wing_area=62.90
wing_span=23.50
wing_root_chord=3.75
wing_dihedral=-2.00
wing_incidence=2.50
wing_twist=0.00
oswald_efficiency_factor=0.80
wing_winglets_flag=0
wing_sweep=25.00
wing_pos_apex_lon=2.90
wing_pos_apex_vert=0.00
htail_area=23.00
htail_span=12.83
htail_pos_lon=-6.75
htail_pos_vert=-1.00
htail_incidence=0.999756
htail_sweep=25.00
vtail_area=9.30
vtail_span=3.23
vtail_sweep=35.00
vtail_pos_lon=-6.75
vtail_pos_vert=1.50
elevator_area=23.00
aileron_area=23.00
rudder_area=9.30
elevator_up_limit=28.000447
elevator_down_limit=20.998903
aileron_up_limit=19.996227
aileron_down_limit=15.000035
rudder_limit=23.995472
elevator_trim_limit=19.497754
spoiler_limit=45.00
spoilerons_available=0
aileron_to_spoileron_gain=0.00
min_ailerons_for_spoilerons=0.00
min_flaps_for_spoilerons=0.00

[Flaps.0]
type=1
span-outboard=1.00
extending-time=7.0
system_type=0
flaps-position.0=0
flaps-position.1=15
flaps-position.2=25
flaps-position.2=45
drag_scalar=1.0

[GeneralEngineData]
engine_type=1
Engine.0=-5.88, -2.35, 0.88
Engine.1=-5.88, 2.35, 0.88
fuel_flow_scalar=1.40
min_throttle_limit=0.0
max_contrail_temperature=-39.0

[TurbineEngineData]
fuel_flow_gain=0.0025
inlet_area=1.38
rated_N2_rpm=29920.00
static_thrust=700.00
afterburner_available=0
reverser_available=0

[Reference Speeds]
flaps_up_stall_speed=98.0
full_flaps_stall_speed=82.0
cruise_speed=434.0
max_indicated_speed=535.80
max_mach=0.81

[LIGHTS]
//Types: 1=beacon, 2=strobe, 3=navigation, 4=cockpit, 5=landing
light.0 = 3, -3.00, -12.00, -1.00, fx_navred ,
light.1 = 3, -3.00, 12.00, -1.00, fx_navgre ,
light.2 = 2, -3.00, -12.00, -1.00, fx_strobe ,
light.3 = 2, -3.00, 12.00, -1.00, fx_strobe ,

[exits]
number_of_exits = 1
exit_rate.0 = 0.25 ;Percent per second

[EFFECTS]
wake=fx_wake
water=fx_spray
dirt=fx_tchdrt
concrete=fx_sparks
touchdown=fx_tchdwn, 1

[keyboard_response]
elevator=100.00,180.00
aileron=200.00,1000.00
rudder=200.00,1000.00

[Views]
eyepoint=-17.11, -1.31, 1.64

[autopilot]
use_no_default_bank=1
use_no_default_pitch=1
autopilot_available=1
flight_director_available=0
default_vertical_speed=2000.00
autothrottle_available=1
autothrottle_arming_required=0
autothrottle_takeoff_ga=0
autothrottle_max_rpm=120.00
pitch_takeoff_ga=8.00
default_pitch_mode=0
default_bank_mode=0
max_pitch=10.00
max_pitch_acceleration=1.00
max_pitch_velocity_lo_alt=2.00
max_pitch_velocity_hi_alt=1.50
max_pitch_velocity_lo_alt_breakpoint=20000.00
max_pitch_velocity_hi_alt_breakpoint=28000.00
max_bank=25.00
max_bank_acceleration=1.80
max_bank_velocity=3.00
max_throttle_rate=0.10
nav_proportional_control=9.00
nav_integrator_control=0.25
nav_derivative_control=0.00
nav_integrator_boundary=2.50
nav_derivative_boundary=0.00
gs_proportional_control=9.52
gs_integrator_control=0.26
gs_derivative_control=0.00
gs_integrator_boundary=0.70
gs_derivative_boundary=0.00
yaw_damper_gain=0.00

[direction_indicators]
direction_indicator.0=2
direction_indicator.1=2

[brakes]
toe_brakes_scale=0.75
parking_brake=1

[gear_warning_system]
gear_warning_available=1
pct_throttle_limit=0.099976
flap_limit_power=15.996982
flap_limit_idle=0.00

[stall_warning]
type=1

[attitude_indicators]
attitude_indicator.0=2
attitude_indicator.0=2

[turn_indicators]
turn_indicator.0=1
turn_indicator.0=1

[Radios]
// Radio Type=availiable, standby frequency, has glide slope
Audio.1=1
Com.1=1,0
Com.2=1,0,
Nav.1=1,0,1
Transponder.1=1
Transponder.2=1
Marker.1=1

[sandar]

I used to like flying Mike's Leopard. I deleted it when I installed FS9. Now, with your work, Firebar, I might just be tempted to download and modify it and give it another go. :ernae:

I saw a real C.M.Leopard at Cranfield sometime in the mid/late 1990's (can't remember the exact year probably '97/8) and was stuck by how small the thing was.

[Firebar]

Yeah it is a tiny aircraft. I think one is at Bournemouth (001) and 002 is elsewhere now. I still remember seeing 001 tucked in a corner at Old Sarum a while ago and was struck by how minute it is. You don't really get a sense of scale from the photos.

I've been working on a panel for the Leopard too (from a diagram I have on the wall next to me in fact) and when I've finished that (may take a while) I'll certainly share it. I'd nearly finished it a while ago but lost it to a HD crash.

[aeromed202]

I'll have some time in the next day or two so I'd be happy to work on it.

[Lionheart]

Neat little design. I didnt know it was actually made.



Bill

[Lionheart]

Found a couple of pics.

Cool little jet.

That is something Collin Chapman would have built....



Bill

[Matt Wynn]

really shows it's small size in the image on the left, that red-arrow is a Gnat, and they're tiny and the tip pod on the right looks like a Jet Provost

[Firebar]

I've tried making a model of the Leopard myself but I just dont have the experience, I just cant get the fuselage shape right. Its 4 constant radius arcs joined at the corners by fillets. I'll attach a 3 view (it might not have all the details of the jane's one but is more accurate in shape) incase anyone wants it.

[Lionheart]

I've tried making a model of the Leopard myself but I just dont have the experience, I just cant get the fuselage shape right. Its 4 constant radius arcs joined at the corners by fillets. I'll attach a 3 view (it might not have all the details of the jane's one but is more accurate in shape) incase anyone wants it.

Hey Firebar,


Its much easier in cases like that to just create half of a cross section Spline (in Gmax) and then create a ton of copies of the Spline in rows along the axis, then start scaling each one to line up with the drawing of the side of the fuselage. Then when you are done, join them, and cover them with a surface; (Cross Section then Surface). (Always do half of the fuselage, then create a mirror copy of it later when you are happy with the first half).

When I am making a sophisticated fuselage, I will usually go that route. Makes it alot easier..


Bill

[Firebar]

Thanks for the tips Bill. I have played with some things for the leopard (lost them in my HD crash hough) I had it all working except for the nose and tail ends of the fuselage, which looked a little wonky and the area around the windows, which i just couldn't get right. Wings and nacelles were okay and as the surfaces are all moving they were alright too. A big problem is that the flaps are also lift dumpers and so have -/+ 45 deflection and that the entire instrumanr panel moves with the canopy.

M

[aeromed202]

I guess I didn't read too well, you're looking for air file fixes which I can't do. But I was looking at the CFG and it doesn't match the one I worked on. Is there more than one Stone model of this?
Here is what I changed but I can't say if it will work with whatever you have. I think it works well with the one I have.

[WEIGHT_AND_BALANCE]
max_gross_weight=4000.000
empty_weight=2200.000
reference_datum_position=0.000, 0.000, 0.000
empty_weight_CG_position=0.000, 0.000, -1.000
max_number_of_stations=50

;Moments of Inertia
empty_weight_pitch_MOI=18000.000
empty_weight_roll_MOI=900.000
empty_weight_yaw_MOI=9000.000
empty_weight_coupled_MOI=0.000
CG_forward_limit=0.000
CG_aft_limit=1.000
station_load.0=0.000000,0.000000,0.000000,0.000000


[flight_tuning]
cruise_lift_scalar=1.100
parasite_drag_scalar=1.300
induced_drag_scalar=1.500
elevator_effectiveness=1.000
aileron_effectiveness=1.219
rudder_effectiveness=1.000
pitch_stability=1.200
roll_stability=0.30
yaw_stability=0.800
elevator_trim_effectiveness=0.509
aileron_trim_effectiveness=1.000
rudder_trim_effectiveness=1.000

[jet_engine]
thrust_scalar=0.900

[contact_points]
point.0=1, 8.50, 0.00, -2.96, 1200, 0, 0.35, 45, 0.10, 1.50, 1.00, 2.40, 2.40, 0.000, 0.000, 0.000
point.1=1, -1.10, -4.00, -3.28, 1600, 1, 0.50, 0, 0.40, 1.00, 1.00, 2.80, 2.80, 2.000, 0.000, 0.000
point.2=1, -1.10, 4.00, -3.28, 1600, 2, 0.50, 0, 0.40, 1.00, 1.00, 2.40, 2.40, 3.000, 0.000, 0.000
point.3=2.000, -3.000, -12.000, -1.000, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 5.000, 0.000, 0.000
point.4=2.000, -3.000, 12.000, -1.000, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 6.000, 0.000, 0.000
point.5=2.000, -12.000, 0.000, -2.000, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 9.000, 0.000, 0.000
point.6=2.000, 10.000, 0.000, -1.800, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 4.000, 0.000, 0.000

[contact_points]
point.0=1, 8.50, 0.00, -2.96, 1200, 0, 0.35, 45, 0.10, 1.50, 1.00, 2.40, 2.40, 0.000, 0.000, 0.000
point.1=1, -1.10, -4.00, -3.28, 1600, 1, 0.50, 0, 0.40, 1.00, 1.00, 2.80, 2.80, 2.000, 0.000, 0.000
point.2=1, -1.10, 4.00, -3.28, 1600, 2, 0.50, 0, 0.40, 1.00, 1.00, 2.40, 2.40, 3.000, 0.000, 0.000
point.3=2.000, -3.000, -12.000, -1.000, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 5.000, 0.000, 0.000
point.4=2.000, -3.000, 12.000, -1.000, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 6.000, 0.000, 0.000
point.5=2.000, -12.000, 0.000, -2.000, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 9.000, 0.000, 0.000
point.6=2.000, 10.000, 0.000, -1.800, 787.400, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 4.000, 0.000, 0.000

static_pitch=0.000
static_cg_height=3.000
gear_system_type=0


[Flaps.0]
type=1
span-outboard=0.900
extending-time=3.000
system_type=0
damaging-speed=250.000
blowout-speed=300.000
lift_scalar=0.800
drag_scalar=1.000
pitch_scalar=0.100
flaps-position.0=0.000, 0.000
flaps-position.1=15.000, 0.000
flaps-position.2=30.000, 0.000

[Tom Clayton]

Mike only did one version that I'm aware of. There's probably a few modified versions floating around somewhere. Bob Chicilo is famous for modifying stuff that Mike did - not always with complete accuracy. (He added thrust reverst to his mods for the KC-135R when the real thing has none.)

[Matt Wynn]

i'm now working on the leopard by looking at it cross section by cross section and inch by inch... a lot of work to go but...
Attachment 16918

[Lionheart]

Looking good Smoothie!

I'll be one that would love to hear updates on its progress..



Bill

[Firebar]

The cfg that i posted was one i've played with a bit.

Looks nice smoothie, ifyou PM me an email adress I've got about 40 photos that I can send you (i'll have to scan them mind) that you might find interesting, including randomly the inside of the nose undercarriage bay.

Little bit of consructive criticism.... There is a pronounced line down theside of the fuselage, which didn't exist in reality, remember aech side was a constant diameter arc! Looks good though.

The Nacelles are the Circular NPT shape, the Leopard actually shifted to the FJX-1 which had a squarer nacelle due to peripherals attached to it.

For the wing when I was playing I just used a basic ARA Laminar flow profile as a template, I have data on the actual profiles somewhere (it changes from root to tip) but could never find a drawing of their shape.

If you're doing that I better get back to making a panel!

M

[Matt Wynn]

yeah the line was an error from poly pushing, i'll PM you an E-mail address, ideally if i can get this made maybe Bill will assist me in getting it FS9 & X compatible just so we cover both bases.... you know what them FSX'ers can be like

[Firebar]

Better start on the scanning in that case...

[Matt Wynn]

yeah and i'll restart the fuselage while i wait
Attachment 16939Attachment 16940

Wings just waiting on the drawings you have buddy to get the 2 stage shape...

[Firebar]

Oops must've not made myself clear, I don't have any drawings of wing profiles, I used a laminar profile I found on the net as it was close enough as FS doesn't use the models for FDE.

The flaps in the wing are full length with a +/- 45 degree deflection. The very outer portion of the tips forward of the flaps is clear and contains the nav and strobe lights.

[Matt Wynn]

thanks Firebar, I like the landing gear in the wings... very lightning-esque... will get the main shapes done then start cutting bits into it and out of it... seems a shame this was never made for sale, only 2 were built if i recall...

[Firebar]

Yeah only the two, they were actually up for sale as a project a while ago along with the leopard 6. Now they've dissappeared off to museums and all thats left is photos and diagrams (and a box of instruments in my garage.....). Even my family (my dad worked on the leopard) doesn't have that much stuff on it.

M