Post by Tom/CalClassic on Oct 16, 2019 12:51:12 GMT -5
Hi all,
I've been working on creating cruise charts for the DC propliners, using my flight manuals. These are typically used for long distance flights where fuel is a continuing concern during the flight. These type of flights can sometimes involve filing a flight plan for an intermediate airport, hoping that there will be enough fuel remaining when approaching that location so that you can refile for your ultimate destination. However, using these charts can make initial flight planning more difficult, and were rarely used when fuel was not a concern. In that case pilots just used the standard power settings as described in the handling notes (reference file). This would be true for virtually all US domestic flights.
From my United DC-6/7 manual I created an updated cruise chart for the DC-6B, which can also be used for the DC-6A.
From the same manual I created a chart for the DC-7, which can also be used for the DC-7B and DC-7F.
From my SAS manual (with some help from my Riddle manual) I created a cruise chart for the DC-7C, which can also be used for the DC-7CF.
They are available here:
www.calclassic.com/Temp/Cruise_Charts_DCs.zip
I place each one into the relevant plane's folder. If I am going to fly that plane long distance for a while I print it out for easy reference.
Please refer to the notes at the bottom of the charts:
Notes:
1. These settings/speeds have not been tested using the current flight dynamics. For maximum accuracy use the Handling Notes (Reference File).
2. MAP settings for Max Cruise (1900 HP), High Speed/Weight Cruise (1700 HP), and Econ Cruise (1600 HP) should be taken from the Reference File (Handling Notes).
3. Blank IAS/TAS values are not recommended. If entirely blank this denotes disallowed power settings.
4. NM/100 LB is no wind nautical miles flown per 100 pounds of fuel, a measure of fuel efficiency. Equals TAS/FF * 25.
5. To set power: switch supercharger if necessary, adjust prop lever to specified RPM value, then adjust throttle to specified fuel flow (FF) value.
I have added #4 to these charts to allow you to determine how efficient your current setting is, compared to other settings on the chart. This is equivalent to miles/gallon (or kilometers/litre) in cars. But also keep in mind that the highest such number may not be the best choice, if you arrive much later than you should! But if fuel is becoming a concern on a flight, this might help.
Let me know if you see anything amiss.
Enjoy,
I've been working on creating cruise charts for the DC propliners, using my flight manuals. These are typically used for long distance flights where fuel is a continuing concern during the flight. These type of flights can sometimes involve filing a flight plan for an intermediate airport, hoping that there will be enough fuel remaining when approaching that location so that you can refile for your ultimate destination. However, using these charts can make initial flight planning more difficult, and were rarely used when fuel was not a concern. In that case pilots just used the standard power settings as described in the handling notes (reference file). This would be true for virtually all US domestic flights.
From my United DC-6/7 manual I created an updated cruise chart for the DC-6B, which can also be used for the DC-6A.
From the same manual I created a chart for the DC-7, which can also be used for the DC-7B and DC-7F.
From my SAS manual (with some help from my Riddle manual) I created a cruise chart for the DC-7C, which can also be used for the DC-7CF.
They are available here:
www.calclassic.com/Temp/Cruise_Charts_DCs.zip
I place each one into the relevant plane's folder. If I am going to fly that plane long distance for a while I print it out for easy reference.
Please refer to the notes at the bottom of the charts:
Notes:
1. These settings/speeds have not been tested using the current flight dynamics. For maximum accuracy use the Handling Notes (Reference File).
2. MAP settings for Max Cruise (1900 HP), High Speed/Weight Cruise (1700 HP), and Econ Cruise (1600 HP) should be taken from the Reference File (Handling Notes).
3. Blank IAS/TAS values are not recommended. If entirely blank this denotes disallowed power settings.
4. NM/100 LB is no wind nautical miles flown per 100 pounds of fuel, a measure of fuel efficiency. Equals TAS/FF * 25.
5. To set power: switch supercharger if necessary, adjust prop lever to specified RPM value, then adjust throttle to specified fuel flow (FF) value.
I have added #4 to these charts to allow you to determine how efficient your current setting is, compared to other settings on the chart. This is equivalent to miles/gallon (or kilometers/litre) in cars. But also keep in mind that the highest such number may not be the best choice, if you arrive much later than you should! But if fuel is becoming a concern on a flight, this might help.
Let me know if you see anything amiss.
Enjoy,