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Calculation of optimum Flightlevel

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Is there a way to calculate the optimum flightlevel for a shorter route at 300 nm or less in a Boeing 738?What would the optimum flightlevel be for a route at 130 nm again in a Boeing 738?

Kind regards

Peter

Just use the FMC. Enter the data, and you will get an optimum and maximum figure displayed.* Orest

Orest Skrypuch
President & CEO, UVA

www.united-virtual.com

I won't use the 737 for a 138 nm flight. I usually fly 500nn or more and at FL290-FL340 or higher depending on the winds which you can get here
my real world company will use a 737 to fly shorter than that. I have a 15 minute flight in the G550 that we do regularly. I guess it depends on if u are using the plane for revenue or not.
my real world company will use a 737 to fly shorter than that. I have a 15 minute flight in the G550 that we do regularly. I guess it depends on if u are using the plane for revenue or not.
...how much revenue can you possible make on a +/-15 min flight with a 737 or a G550?

Boeing777_Banner_Pilot.jpg

...how much revenue can you possible make on a +/-15 min flight with a 737 or a G550?
I think he is referring to those flight (from his employer) not being revenue but rather fraction ownership charters or flat out owned biz jets in witch you provide a service that already paid for or if it's your jet there is no rrevenue as you fly were the owner wants to go

-Raven Harris
Intel i7 980X @ 4.43GHz | ASUS Rampage III | Corsair 6GB DDR3 2000MHz | 3 EVGA GTX280 | Corsair 1200 Watt | Intel 510 SSD (RAID 0)
PMDG - 747-400/8iF | MD11/F | BAe J41 | 737NG 6/7/8/9 Hope ER/BBJ|777LR/F
Flight1- Cessna Mustang

 

  • Author
Just use the FMC. Enter the data, and you will get an optimum and maximum figure displayed.* Orest
It will show a FL that is much too high for a short flight.
I won't use the 737 for a 138 nm flight. I usually fly 500nn or more and at FL290-FL340 or higher depending on the winds which you can get here:http://www.aviationw...ucts/nws/boston
In Denmark, the companies are using B736, B737 and B738 for short flights.

Kind regards

Peter

I think he is referring to those flight (from his employer) not being revenue but rather fraction ownership charters or flat out owned biz jets in witch you provide a service that already paid for or if it's your jet there is no rrevenue as you fly were the owner whats to go
thanks
It will show a FL that is much too high for a short flight.
Take a look at the "TRIP"-altitude. This is calculated for 1 minute between ToC and ToD.

Florian Schindler

I won't use the 737 for a 138 nm flight. I usually fly 500nn or more and at FL290-FL340 or higher depending on the winds which you can get here:http://www.aviationw...ucts/nws/boston
Scandinavian Airlines fly between CPH and GOT. It is an 130Nm trip and they normally use Md-80's and A319's on the trip.
It will show a FL that is much too high for a short flight.
But, that is your optimum altitude. If the flight is to short and you do not have time to climb to it, you just go as high as you can.Normally I would say they cruise under FL300, like FL270-FL290.

Pontus Emanuelsson

Banner_FS2Crew_Instructor.jpg

 

"You win again gravity!"

I'Ve heard that you could choose over the thumb your distance as FL, meaning 120 nm as FL 120.With the NGX you can go also easily at 150 or 160 ...But this thumb rule works the most times for a rough estimation.For precise calculation I have no answer...

Guenter Steiner
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Betatester for: A2A, LORBY, FSR-Pillow Tester
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Thank you very much for your answers.I have found out, that the distance i nm / 7 x 10 and then check what the FMC says, Then you use the lowest number of those two.

Kind regards

Peter

Petersburg-Wrangell in Alaska is 31 miles. :( 11 minutes in a 737.You don't get too high.

Matt Cee

Myself, I've found the FMC to be fairly accurate about this for the most part.But I'm used to doing things the "old" ways, so I can just guess in most casesand come out pretty close. And calculate it if needed.I run a lot of short flights.. Actually, most all of mine are short. I like doing morecycles, than being at cruise for 4-5 hours..I fly to Dallas from Houston so often, I can do it in my sleep.. If you look atSouthwest's flight plan for that route, they call for cruise at FL30.0.If you calculate that flight in the FMC, using the same SID/STAR as the realworld, and use fairly real world cost indexes of say the 35-40 range, guesswhat the recommended cruise alt is? An average of about FL30.0.. :)Hobby to Love is probably about 245 miles or so.. But I'd have to do a GPScheck to be fairly exact for air miles..The cruise levels from Hobby to Austin and San Antonio are even lower..About FL28.0 for San Antonio, and they plan for FL22.0 to Austin.I'd have to check those routes in the FMC, as I can't recall how close they get.But.. If the FMC recommends a certain cruise alt, that means the airplanethinks it can do it, and it usually can in most cases.But I still use some common sense, and apply some "old school" methodsto try to plan the best altitude if the FMC spits out something that seems goofyand laced with excess levels of unobtainium. :/Usually the FMC should tell you if the cruise alt you plan is too high once youpunch it in, and it ponders things for a second or two.

Mark Keith

Petersburg-Wrangell in Alaska is 31 miles. :( 11 minutes in a 737.You don't get too high.
Ya but does it continue on to other destination? Because if I was to have a 737 just to fly 31 miles and return.... I'm thinking a rented car would do.

Boeing777_Banner_Pilot.jpg

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