0.9 - Standalone Plane

Standalone plane

This mod is now a standalone plane VL3 Racing 915 iS alongside the good old VL3 Evolution.

This will have two consequences for you:

• The liveries intended for the original VL3 will no longer be applied to this version.
• This mod will now be provided with its own liveries.

Since version 0.8, modifications have been made on the behavior of the aircraft making it even closer to reality (ailerons, flaps, rudder, etc.). This update improves in particular the stall speeds which were too low before.

A new livery has also been made by TalonHawk, included directly in the mod.

Beta version

As we are flying this plane for some days now, we can tell that this mod is now in a form of "beta" version (it's not that experimental anymore and you could fly without major issues).

0.8

Model

• Improved Cockpit decals (speed limitations box)

Propeller

• Slightly increased thrust scalar

Reference Speeds

• Increased normal operating speed to 150
• Increased min required speed rotation to 42 Kts
• Increased approach speed to 60 Kts
• Tweaked Max gear extended from 80 to 81

Flaps

• Decreased extension time from 2 to 1.5 seconds

G3X Gauges

• Tweaked Oil pressure gauge
• Tweaked EGT °C gauge
• Tweaked Fuel bar gauge

0.7

Model

• Included the Racing Livery model of the plane from CMDR Orvidius
• Modified interior (carbon fiber) => Thanks to TalonHawk for this AWESOME work !

Tweaks

• Propeller Thrust Scalar back to 1 now that propeller as been updated from factory data
• Lots of small improvements on geometry to be closer to reality
• Flight tuning improvements
• Reference speed improvements
• Reduced flaps extension time

0.6

Gauges

Trying to tweak gauges to be in adequation with G3X (but it seems to not work properly yet)

Piston Engine

• min_required_rpm 700 => 1400
• max_rpm_mechanical_efficiency_scalar 0.92 => 0.96
• fuel_press_max 5832 => 6480

Propeller

• min_gov_rpm 1100 => 615.52

Flight Tuning

• pitch_stability 0.1 => 0.3
• roll_stability 0.1 => 0.3
• yaw_stability 0.1 => 0.3

0.5

General Engine Data

• fuel_flow_scalar 0.82 => 0.78

Piston Engine

• max_rpm_mechanical_efficiency_scalar 1 => 0.92
• fuel_press_max 6480 => 5832

Propeller

• thrust_scalar 2.2 => 2
• propeller_diameter 5.58 => 5.7021
• propeller_moi 2.83485 => 0.36878
• beta_min 12 => 8
• gear_reduction_ratio 2.43 => 2.2745

0.4 - New Airspeed Gauges

Warning

If you already have this mod, please remove the old named nanor-vl3rotax915 because this one has been renamed.

Changes

Upgraded Airspeed Gauges based on GotGravel's researchs

Experimental 0.3 - The GotGravel Era 😅

Piston Engine

• power_scalar from 1.8 to 1
• compression_ratio from 11 to 8.3
• min_cruise_rpm from 1400 to 1800
• critical_altitude from 18000 to 15000
• max_rpm_mechanical_efficiency_scalar from 0.92 to 1
• BestPowerSpecificFuelConsumption from 0.49 to 0.42
• fuel_press_max from 2376 to 6480

Propeller

• thrust_scalar from 1.3 to 2.2
• propeller_diameter from 6.1352 to 5.58

Airplane Geometry

• wing_area from 105.2 to 105.5
• wing_dihedral from 5 to 7
• wing_sweep from 4 to 2
• htail_area from 14 to 18.19
• htail_span from 8 to 8.79
• htail_sweep from 5 to 3
• vtail_area from 13 to 9.43
• fuselage_length from 20 to 20.34
• fuselage_diameter from 3.4 to 3.77
• elevator_area from 7.16 to 7.86
• aileron_area from 7.04 to 2.23
• rudder_area from 10 to 3.33
• aileron_effectiveness from 1 to 1.8

Reference Speeds

• cruise_speed from 200 to 205
• max_indicated_speed from 275 to 229
• max_flaps_extended from 64 to 65
• airspeed_indicator_max from 275 to 299
• climb_speed from 100 to 60
• cruise_alt from 1500 to 18000
• best_angle_climb_speed from 0 to 60
• approach_speed from 0 to 55
• best_glide from 0 to 65

Flaps

• flaps-position.2 from '37, -1, 0.66, 0, 0, 0, 0' to '38, -1, 0.66, 0, 0, 0, 0'

Experimental 0.2

In order to get as close as possible to the real engine, small modifications have been made.

• min_cruise_rpm lowered from 1800 to 1400. Idle RPM is not the same value everywhere on internet but this value looks more accurate.
• max_rated_hp from 142 to 141. 142 HP was a rounding up, it is now a rounding down as it looks more close to reality.

Experimental 0.1

First github version.

• Air speed gauge : latest ryanbatc recommandations
• Turbocharged value to 1
• Min and max design manifold pressure according to Rotax 915 manual
• Max design manifold pressure altitude to 18000 feets
• Min cruise rpm to 1800 according to Rotax 915 manual
• Max gross weight to 1322 lbs according to website specifications
• Maximum blade pitch angle for constant speed prop at 40 degrees
• Empty weight to 794 lbs according to website specifications
• Fuel capacity to 18.5 gallons for each tank, so it’s 37 gallons total according to website specifications (140 l)
• Some modifications in reference speed section (200KTAS cruise speed, 100 KTS climb speed)