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Douglas DC-6B
Pilot's Handling Notes (R-2800-CB16 engines)
6/2013
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SUMMARY.
This version of the DC-6B has four 1700hp Pratt &
Whitney R-2800-CB16 Double Wasp engines which are carburetted
and highly supercharged to give rated power up to 14500 feet. 2400hp is
available for TOGA (below 7200 feet in FS9) for two minutes using
water/methanol injection. METO power is 1800hp to 8,500 feet. The constant
speed propellers can be feathered and have reverse pitch. These engines have automixture. Set AUTO MIXTURE ON in the MSFS realism
screen.
When used in the DC-6B these engines have a dual high
weight cruise / high speed cruise power setting. It is the economy cruise
setting when > 89,000lbs and the high speed cruise setting when <
89,000lbs. See 2008 Propliner Tutorial from
www.calclassic.com/tutorials for use of high speed cruise and how to battle
headwinds.
Maximum fuel load is 29,600 pounds. All fuel burn
figures are for planning purposes and will vary slightly with altitude. Adjust
fuel and payload using the CalClassic Fuel Planner or
the fuel and payload menu in FS9.
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HANDLING THE AIRCRAFT
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Take Off (with
water/meth injection):
APPLY BRAKES
MIXTURE - AUTO in realism screen
CARB HEAT - COLD
TRIM + 4 degrees
FLAP = STAGE 2
PROPS = MAX RPM
IF ADI/AF desired/required: ADI & AF ON
Invokes water/meth injection giving 59.5" MAP @FT
WET departure/AF is MANDATORY > 92,200lbs
*DRY TAKE OFF SET MAP = 53"
COWL FLAPS = 4 degrees
Check CHT < 260C
CALL for TOGA POWER
(2400hp WET)
RELEASE BRAKES
Slowly apply FULL THROTTLE or 53" DRY
ROTATE at 115 KIAS
(@ 103800lbs)
Establish positive rate of climb
GEAR UP
ACCELERATE > 130 KIAS @ <= 500 ft/min
CLIMB 300 feet AGL
FLAP = STAGE 1
ACCELERATE 140 KIAS @ <= 500 ft/min
FLAP = UP
Establish 500 VSI
CALL for METO Power (1800hp)
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METO Power (1800hp x 4):
48 inches MAP
2600 RPM
160 KIAS
ADI & AF OFF
COWL FLAPS = 4 degrees
Check CHT < 260C
Above all obstacles:
VSI = 500
ACCELERATE > 175 KIAS
CALL for climb power
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Climb Power (1400 hp
x 4):
39 inches MAP
2400 RPM
170 KIAS
COWL FLAPS = 4 degrees
Check CHT < 232C
IF UNABLE to maintain 500 VSI @ 170 KIAS
(or use Initial Alt value on Notepad)
REQUEST LEVEL OFF from ATC
ACCELERATE > 180 KIAS
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Max Cruise (1200hp x
4):
Use only to battle headwinds
Above FL170 DO NOT EXCEED Mno
= 220 KIAS
MAP = 36 inches
RPM = 2200
COWL FLAPS = 1 degree
Check CHT <
232C
Note: May
cruise nose down due to headwinds at higher altitudes
Plan 2350 PPH
Yields 255 KTAS @ FL190 @ 89000lbs
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High Weight/Speed Cruise (1100hp x 4):
>89,000 lbs: High Wt. Econ Cruise
<89,000 lbs: High Speed Cruise
UAL Standard Cruise Power
MAP = 34 inches
RPM = 2100
COWL FLAPS = CLOSED
Check CHT <
232C
@ zero pitch climb 2000 ft at 500 fpm (FL210 max)
Plan 2100 PPH
Yields 251 KTAS at FL210 @ 89000lbs
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Econ Cruise (1000hp x 4):
Use only <= 89,000lbs
MAP = 32 inches
RPM = 1850
COWL FLAPS = CLOSED
Check CHT <
232C
@ zero pitch climb 2000 ft at 500 fpm
(MAP maintained to FL230, FL250 max)
Plan 1900 PPH
Yields 242 KTAS at FL220 @ 89000lbs
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High Blower METO FL145: (1700hp x 4)
Use for TOGA above 7200 QNH
FULL THROTTLE
2500 RPM
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En route Holding:
2000 RPM
FLAP = UP
Slowly REDUCE MAP
To obtain 160 KIAS
COWL FLAPS = 1
degree
Check CHT < 232C
Plan 1450 PPH
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Descent:
RPM = 2000
COWL FLAPS = CLOSED
ABOVE FL170 DO NOT EXCEED Mno
= 220 KIAS
DO NOT EXCEED Vno = 251 KIAS
REDUCE MAP in stages of 3 inches (per minute)
MINIMUM 20 INCHES MAP
See CARB HEAT below
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Arrival and Terminal Holding:
Approaching IAF /
Hold:
2000 RPM
COWL FLAPS = 1 degree
Check CHT < 232C
REDUCE < 160 KIAS
FLAP = STAGE 1
REDUCE < 150 KIAS
Crossing IAF entering Hold:
FLAP = STAGE 2
MAINTAIN 140 KIAS
Plan 2100 PPH
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Approach and
Circuit:
Cross FAF = 140 KIAS & FLAP 2 deployed
2400 RPM
MAP => 24 inches
COWL FLAPS = 2 degrees
LANDING LIGHTS = DEPLOY + ON
On reaching Minimum Descent Altitude:
(see propliner tutorial
parts 4 & 7)
REDUCE = 130
KIAS
ON reaching Glideslope:
(straight in or base)
GEAR = DOWN
FLAP = STAGE 3
FLAP = STAGE 4
REDUCE < 120 KIAS
FLAP = STAGE 5
Cross THRESHOLD 105 KIAS (@ 88,000lbs)
FLARE and LAND
After nosewheel contact:
PROPS FULL FINE
REVERSE PITCH
FLAP - UP
Below 50 kts:
FORWARD PITCH
WHEEL BRAKES as required
COWL FLAPS - FULL OPEN
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Baulked Landing:
CALL for EMERGENCY POWER
PROPS FULL FINE
FULL THROTTLE
(ADI ON invokes water/meth injection)
COWL FLAPS - CLOSED
ROTATE and CLIMB 115 KIAS
Clear of obstacles:
GEAR - UP
ACCELERATE >140 KIAS
COWL FLAPS - 4 degrees
FLAPS - UP (by stages)
ACCELERATE 165 KIAS
LANDING LIGHTS - OFF and RETRACT
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Carb Heat:
When < 30 inches MAP with an OAT below 5C (40F)
use carb heat periodically
to clear carburettor ice.
Continuous use of carb heat
is not recommended.
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General:
AEROBATICS are PROHIBITED
NEVER EXCEED FL250
DO NOT EXCEED Vno = 251 KIAS
Above FL170 DO NOT EXCEED Mno
= 220 KIAS
AP in use never exceed 217 KIAS
GEAR DOWN never exceed 174 KIAS
FLAP 1 never exceed 174 KIAS
FULL FLAP never exceed 152 KIAS
CLEAN STALL 105 KIAS
Vmc 83 KIAS
STALL with FULL FLAP 81 KIAS
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NOTE: This aircraft's real-world handling notes have
been simplified for use with FS 2004
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