********************************************************
| Handling Notes |
|
| Convair CV-240 with R-2800-CA18 Engines |
|
|
|
|
| 4/2009 |
*********************************************************
The two Pratt & Whitney R-2800-CA18 Double Wasp engines
are carburetted and highly supercharged. They are optimised for use from high
altitude runways. 2400hp is available for TOGA below 7600 QNH for a maximum
of two minutes using water/methanol injection (ADI) for emergency cooling.
The constant speed propellers can be feathered and have reverse pitch.
AUTOMIXTURE - SET AUTOMIXTURE ON in realism screen.
TAKE OFF ABOVE 7600 QNH - all take offs and go arounds
above 7600 QNH must be performed with the engine derated to METO RPM (2600).
Failure to retard RPM to 2600 may reduce thrust. For every 200 feet above 7600
QNH reduce payload by 200 pounds, (one passengers plus bags).
DRY TAKE OFF using no more than MAP = 53.5 to prolong
engine life is permitted at any weight and any altitude.
CARB HEAT - When MAP < 29 and OAT < +5C apply CARB HEAT for 30 seconds every few
minutes to clear carb ice. Use of CARB HEAT CAUSES significant LOSS OF POWER.
FUEL LOAD - Default and maximum fuel load is 9,300lbs of
130 Octane AVGAS. PPH values below are for planning purposes using the 2008
Propliner Tutorial. A CalClassic Notepad (CCN) gauge is provided and can be
used instead. Adjust fuel and payload according to trip length using the fuel
and payload menu within FS9.
OPERATIONAL CEILING (OC) - The original purchasers of the
CV240 cruised using design cruise power for a while but they and all second
users soon adopted reduced cruise power to increase safety margins. A CCN gauge
is provided. Use it to determine current OC more accurately than the VSII
criteria cited below and pitch criteria cited within the 2008 Propliner
Tutorial. A CCN gauge replicates calculations provided by your crew to inform
your captaincy decisions.
WARNING - CRITICALLY WEAK STRUCTURE - This aircraft may
suffer structural failure during cruise in cold air.
WARNING - NO MACHMETER - NO BARBER POLE - OBSERVE ALL IAS
RESTRICTIONS WITH CARE
Note: Calclassic panels load with a barber pole to assist
inexperienced users. Click on ASI to remove this cheat mode.
***************************************************************
HANDLING THE AIRCRAFT (phase by phase)
****************************
BRAKES = ON
MIXTURE = AUTO in realism screen
CARB HEAT = COLD
COWLS = MID
ADI & autofeather = ARM
TRIM = TAKE OFF
FLAP = STAGE 1
RPM = MAX
>>>>>>>>>>>>>>>
Above 7600 QNH
REDUCE PAYLOAD
RPM = 2600
>>>>>>>>>>>>>>>
CALL for EMERGENCY POWER
STOP WATCH = START
FULL THROTTLE
>>>>>>>>>>>>>>>>>>>>>>>>>>>
DRY TAKE OFF SET MAP = 53.5
>>>>>>>>>>>>>>>>>>>>>>>>>>>
BRAKES = OFF
ROTATE at 102 KIAS
(@ 42500lbs)
Establish positive rate of climb
GEAR = UP
ACCELERATE > 130 KIAS <= 500 ft/min
FLAP = UP
ACCELERATE = 150 KIAS <= 500 ft/min
@ 150 KIAS else after MAX 110 SECONDS
CALL for METO Power
************************************
Climb phase 1 - Obstacle Clearance -
METO Power:
COWLS = MID
MAP = 47
RPM = 2600
STOP WATCH = STOP
ADI & autofeather = DISARM
150 KIAS
Above all obstacles
CALL for (max) climb power
***********************************
Climb phase 2 - ATC restrictions - Max climb power:
COWLS = MID
MAP = 42
RPM = 2400
150 KIAS
Above all ATC restrictions
CALL for normal climb power
***********************************
Climb phase 3 - Climb power:
COWLS = MID
MAP = 39
RPM = 2400
VSI = 500
If IAS < 150
Begin semi circular cruise phase:
****************************
WARNING - NO MACHMETER or BARBER POLE
> FL220 DO NOT EXCEED 172 KIAS
> FL200 DO NOT EXCEED 182 KIAS
> FL180 DO NOT EXCEED 192 KIAS
> FL160 DO NOT EXCEED 202 KIAS
COWLS = CLOSED
MAP = 34
RPM = 2300
Plan 1100 PPH
Yields 240 KTAS at FL190
****************************
Design (first user) Cruise:
WARNING - NO MACHMETER or BARBER POLE
WARNING - MAY CAUSE STRUCTURAL FAILURE
> FL200 DO NOT EXCEED 182 KIAS
> FL180 DO NOT EXCEED 192 KIAS
> FL160 DO NOT EXCEED 202 KIAS
COWLS = CLOSED
MAP = 37
RPM = 2300
Plan 1250 PPH
Yields 249 KTAS at FL180
****************************
Max Cruise power:
Use to battle significant headwinds
WARNING - NO MACHMETER or BARBER POLE
WARNING - MAY CAUSE STRUCTURAL FAILURE
> FL200 DO NOT EXCEED 182 KIAS
> FL180 DO NOT EXCEED 192 KIAS
> FL160 DO NOT EXCEED 202 KIAS
COWLS = CLOSED
MAP = 39
RPM = 2300
Plan 1350 PPH
Yields 255 KTAS at FL160
****************************
Low Level Cruise Power <= FL120:
COWLS = CLOSED
MAP = 35
RPM = 2300
Plan 1100 PPH
Yields 218 KTAS at FL120
****************************
Descent phase:
Maintain CRUISE RPM
Target CRUISE IAS
WARNING - NO MACHMETER or BARBER POLE
> FL220 DO NOT EXCEED 172 KIAS
> FL200 DO NOT EXCEED 182 KIAS
> FL180 DO NOT EXCEED 192 KIAS
> FL160 DO NOT EXCEED 202 KIAS
> FL140 DO NOT EXCEED 212 KIAS
> FL120 DO NOT EXCEED 222 KIAS
> FL100 DO NOT EXCEED 232 KIAS
> FL080 DO NOT EXCEED 242 KIAS
< FL076 DO NOT EXCEED 244 KIAS
*AVOID SHOCK COOLING*
See 2008 Propliner Tutorial
COWLS = CLOSED
REDUCE MAP @ 3 inches per minute
When MAP < 25
RPM = 2100
MAP => 21
REDUCE = 170 KIAS
CARB HEAT = as above
*****************************
Arrival phase:
COWLS = CLOSED
See CARB HEAT below
RPM = 2100
MAP => 21 inches
Before IAF / Hold:
REDUCE < 170 KIAS
Descending in Hold:
DO NOT EXCEED 173 KIAS
VSI to comply
Before commencing approach:
REDUCE < 155 KIAS
FLAP = STAGE 1
COWLS = MID
135 KIAS
*****************************
Before Glidepath:
LANDING LIGHTS = DEPLOY
LANDING LIGHTS = ON
ADI & autofeather = ARM
RPM = 2300
MAP => 23 inches
Just before G/P:
FLAP = STAGE 2
120 KIAS
On intercepting glidepath:
GEAR = DOWN
MAP => 23
In time to achieve Vref:
FLAP = STAGE 3
>>>>>>>>>>>>>>
MAX STOL ONLY
FLAP = STAGE 4
Vref = 98
>>>>>>>>>>>>>>
CARB HEAT = COLD
Vref = Cross boundary 102 KIAS (@ 39,800lbs)
(below 50 QFE MAP < 23 allowed)
FLARE and LAND
After landing phase see below
****************************
Circuit phase:
High Performance Visual Circuit:
(see 2008 Propliner Tutorial)
CARB HEAT as above
Before Downwind Join:
RPM = 2100
MAP => 21 inches (MIN)
COWLS = MID
REDUCE < 155 KIAS
FLAP = STAGE 1
135 KIAS
Downwind:
RPM = 2300
MAP = 23
FLAP = STAGE 2
130 KIAS
MAP => 23
ADI & autofeather = ARM
Base Leg:
LANDING LIGHTS = DEPLOY
LANDING LIGHTS = ON
RPM = 2300
MAP => 23 inches (MIN)
GEAR = DOWN
120 KIAS
Begin final turn 700 QFE
Final:
In time to achieve Vref
FLAP = STAGE 3
>>>>>>>>>>>>>>
MAX STOL ONLY
FLAP = STAGE 4
Vref = 98
>>>>>>>>>>>>>>
CARB HEAT = COLD
Vref = Cross boundary 102 KIAS (@ 39,800lbs)
(below 50 QFE MAP < 23 allowed)
FLARE and LAND
*********************
After landing phase:
AFTER NOSEWHEEL CONTACT:
RPM = MAX
REVERSE SCREW PITCH as required
FLAPS = UP
WHEN 40-50 KTS:
FORWARD SCREW PITCH
WHEEL BRAKES as required
COWLS = FULL OPEN
ADI & autofeather = DISARM
********************************