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Helicopter as350 update #41

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merged 2 commits into from
Aug 11, 2023
Merged

Helicopter as350 update #41

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60e1139
Better 'flight model' values.
jmbau Aug 11, 2023
464e745
Better 'flight model' values. Helicopter could not reach cruising spe…
jmbau Aug 11, 2023
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34 changes: 20 additions & 14 deletions data/aircrafts/as350.3d
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Original file line number Diff line number Diff line change
Expand Up @@ -20,8 +20,8 @@ texture_load as350_fuselage_left02 textures/as350/fuselage_left02.tex 0.800000
texture_load as350_fuselage_bottom textures/as350/fuselage_bottom.tex 0.600000
end_header
version 0 8 1
name Aerospatile AS-350
desc <bold>Aerospatile AS-350<default>\
name Aerospatiale AS350 B2
desc <bold>Aerospatiale AS350 B2 <default>\
Manufacturer: <bold>Aerospatiale<default>\
Rotor Diameter: <bold>35' 9"<default>\
Height: <bold>10' 11"<default>\
Expand Down Expand Up @@ -81,14 +81,15 @@ air_brakes 0.0
# h p b
attitude_change_rate 27.0 18.0 40.0

# Acceleration responsiveness, higher values produce less
# responsiveness.
# i j k
helicopter_accelresp 4200.0 12100.0 1100.0
airplane_accelresp 14000.0 10000.0 3.0
# Acceleration responsiveness, higher values produce less responsiveness.
# right/left fwd/bckwd up/down
# i j k
helicopter_accelresp 600.0 600.0 575.0

# Dry mass in kg
dry_mass 1220.0
# AS-350 dry_mass for max weight test (2250 kg - fuel initial_kg = 1669 kg):
#dry_mass 1669.0

# Fuel capacity and efficiency. For the consumption_rate we just use
# the equation (fuel_max_kg / max_endurance_time_in_seconds /
Expand All @@ -99,16 +100,21 @@ dry_mass 1220.0
fuel 0.069 581.0 581.0

# Engine settings
# can_pitch? initial_pitched? power collective_range
engine 0 0 27000.0 0.95
# Power value adjusted to achieve vertical max climb rate (1,670 ft/min = 27.8 ft/s) at helicopter normal weight
# and 100% throttle (collective), with AS-350 takeoff normal weight = 1801 kg = dry_mass + fuel initial_kg = 1220 + 581.
# can_pitch? initial_pitched? power collective_range
engine 0 0 22590.0 0.50

# Speed bounds (all in mph)
# stall speed_max min_drag overspeed_expected overspeed
speed 60.0 37000.0 0.75 176.0 210.0
# min_drag adusted to reach cruising speed (115 knot) when flying horizontally (no elevation) at 80% throttle,
# with the "standard take off" weight (dry_mass = 1220.0 kg).
# 115 knot = 132 mph, 133 knot = 153 mph, 155 knot = 178 mph.
# stall speed_max min_drag overspeed_expected overspeed
speed 0.0 600.0 1.0 153.0 178.0

# Attitude leveling in degrees per second
# h p b
attitude_leveling 0.0 1.1 1.5
# h p b
attitude_leveling 0.0 2.0 2.5

# Service ceiling in feet
service_ceiling 15100
Expand All @@ -119,7 +125,7 @@ service_ceiling 15100

# Crew and capacity
# crew passengers passengers_max
crew 4 0 0
crew 1 0 4

# Sounds
# name range range_far pos_xyz cutoff dir_hpb sample_rate_limit filename
Expand Down
16 changes: 7 additions & 9 deletions data/aircrafts/ec145.3d
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Original file line number Diff line number Diff line change
Expand Up @@ -72,8 +72,10 @@ air_brakes 0.0
attitude_change_rate 38.0 20.0 40.0

# Helicopter acceleration responsiveness. Higher values produce less responsiveness.
# For max rate of climb at 80% throttle test: 1600ft/min = 26.7ft/s
# right/left fwd/bckwd up/down
helicopter_accelresp 4200.0 3800.0 2200.0
# i j k
helicopter_accelresp 1455.0 1455.0 1065.0

# Dry mass, in kg (EMS equipped, with 2 pilots)
dry_mass 2450.0
Expand All @@ -87,21 +89,17 @@ dry_mass 2450.0
fuel 0.093 694.0 694.0

# Engine settings.
# Power value adjusted to achieve vertical max climb rate at helicopter max weight and 100% throttle (collective),
# with EC-145 takeoff max weight = 3585 kg = dry_mass max + fuel initial_kg = 2891 + 694.
# can_pitch? initial_pitch power collective_range
engine n 0 47500.0 1.00
engine n 0 39275.0 0.50

# Speed bounds, all in mph
# min_drag adusted to reach cruising speed (133 knot) when flying horizontally (no elevation) at 80% throttle,
# with the "standard take off" weight (dry_mass = 2450.0 kg).
# 133 knot = 153 mph, 145 knot = 166.9 mph, 150 knot = 172.6 mph.
# stall speed_max min_drag overspeed_expected overspeed
speed 0.0 600.0 0.73 166.9 172.6
speed 0.0 0.0 0.95 166.9 172.6

# Attitude leveling, in degrees per second
# h p b
attitude_leveling 0.0 1.1 1.5
# h p b
attitude_leveling 0.0 5.0 10.0

# Service ceiling, in feet
service_ceiling 17200
Expand Down
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