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This calculator is based on the official Pilot’s Operating Handbook (POH) for most things. It « reads » (and extrapolates from when needed) the graphs and tables required to provide the information given. The values that do not directly orginate from the POH are :
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- FUEL BURN @ CRUISE : IF test flights’ built tables
- TRIMMING : IF test flights built tables
- TAKE OFF POWER : simple weight based IF tests’ table
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> Find the POH here <
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HOW TO PREPARE YOUR FLIGHT
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– Choose your departure airport and runways and add the weather parameters.
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– Decide your cruise altitude, acceleration altitude, then add expected cruise temperature and HW for climb, cruise and descent.
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– Choose your climb mode (CRUISE CLIMB to reach up to 12000ft @ 115kt IAS, or MAX CLIMB to reach higher but slower).
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– Choose your cruise mode (Max CRUISE for max speed or Max RANGE to fly further).
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– Add PAX and or CARGO (reaching 24000ft requires the aircraft to be very light…).
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– Input your IF flight plan distance and validate the flight time and fuel data by setting OK in the validation cell (from now, you must be ready to go - Make sure IF weight is the exact same as in the file).
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HOW TO FLY
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– Select your TAKEOFF configuration (given the RWY and or conditions, somme might be unusable)
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– Apply the indicated PWR and rotate as indicated.
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– @ acceleration altitude, set the required climb speed in the autopilot and monitor/adjust the vertical speed (and IAS in case of MAX CLIMB) according to the mid-climb and cruise level values.
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– Upon reaching cruise level, cancel the speed in the autopilot when PWR is at 80 % and let the aircraft accelerate to the calculated value. Then set speed again and check the OAT to adjust your cruise speed if needed (1 degree more or less than anticipated may require an IAS adjusment. When the wind or temperature changes during cruise, you need to adapt those values set before flying and adapt your cruise speed if needed.
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– For the most efficient flight, remove all altitudes from your flight plan but that of the runway you want to land on, then use VNAV from the TO DIST. TO DEST. Indicated, note when VNAV activates in the Autopilot, then let the aircraft reach 160kt (or 140kt at first if above 16000ft, then 160kt).
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– Select your choosen configuration, slow down as required and land.
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REMARKS
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- In case a chosen airport’s runways do not appear in the drop down list when the airport OACI code is set, it means that the airport is missing from the list. One may then fill the required fields in that list by overwriting a never-to-be-used airport. When doing so, it is necessary to add both corresponding runways values (XXXX12 and XXXX30 for instance). The first (FAKE) airport in the list (BIBI) serves as an exemple.
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- The RPM value displayed in the IF cockpit makes no sense. The RPM/Torque values displayed in this file are real and are there for your information.
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- The temperatures at acceleration speed altitude and mid-climb altitude are derived from a linear ISA progression between TO ISA and CRUISE ISA.
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- Direct links to actual METAR (from metar-taf.com) and satellite aerial views (from ourairports.com) of both selected airports and are provided for planning.
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