DHC-6 Twin Otter

MSFS 2024 - QUICK REFERENCE

V-SPEEDS
SpeedValueDescription
Vs058 KIASStall - flaps full, landing config
Vs180 KIASStall - flaps up, clean config
Vr70-80 KIASRotation (weight dependent)
Vx87 KIASBest angle of climb (flaps up)
Vy100 KIASBest rate of climb (flaps up)
Va130 KIASManeuvering speed (max weight)
Vfe108 KIASMax speed - flaps extended (any position)
Vno150 KIASMax structural cruise speed
Vne170 KIASNever exceed speed
Vref (Flaps 37.5)74 KIASLanding reference - full flaps
Vref (Flaps 10)85-94 KIASInitial approach speed
V2 (SFAR23)80 KIASTakeoff safety speed - Flaps 10
POWER SETTINGS
PhaseSetting
TakeoffMAX TORQUE 44-47 PSI (temp dep.)
Climb35-40 PSI torque per engine
Cruise (Normal)30-38 PSI / 150-170 KIAS
Cruise (Economy)25-30 PSI / ~150 KIAS
DescentReduce gradually - avoid rapid cooling
ApproachPower as required - responsive to changes
Ground Idle~68-70% Ng
Beta / ReverseAfter touchdown for braking
FLAP SCHEDULE
SettingMax SpeedUse
0 deg (UP)AnyCruise / Climb
10 deg<= 108 KIASNormal takeoff / Initial approach
20 deg<= 108 KIASShort-field takeoff / Approach
37.5 deg (FULL)<= 108 KIASLanding - all normal landings
ENGINE LIMITS
ParameterValue
Max ITT (Start)1,090 deg C
Max ITT (Takeoff 5 min)765 deg C
Max ITT (Continuous)710 deg C
Max Ng (Gas Generator)101.5%
Max Np (Propeller)100% (2,200 RPM)
Max Torque (Takeoff)47 PSI (temp dep.)
Max Torque (Continuous)44 PSI
Oil Temp (Min for Takeoff)40 deg C
Oil Temp (Max)99 deg C
Oil Pressure (Min)60 PSI
Oil Pressure (Max)100 PSI
KEY NUMBERS
ParameterValue
Fuel Capacity378 kg (833 lbs / ~133 USG)
Fuel Burn (Total)~180-220 PPH (both engines)
Fuel Burn (per engine)~90-110 PPH at cruise
MTOW5,670 kg (12,500 lbs)
Max Landing Weight5,579 kg (12,300 lbs)
Takeoff Roll (MTOW, SL)2,700 ft
Landing Roll (SL)2,200 ft
Pattern Altitude1,000 ft AGL
Pattern Speed90-100 KIAS
Max Crosswind~15 kts (demonstrated)
Single-Engine Climb Rate300 fpm (MTOW, SL)
Max Passenger Capacity19 passengers
Cruise Speed175 kts (normal) / 150 kts (economy)