Playing with the wind: The big circle

It is said that when making a round trip any wind is a disadvantage.  While you may have a tail wind in one direction, you will have a headwind in the other.  You will spend more time in the headwind then in the tailwind so overall, the wind will increase your trip time and increase your fuel burn.  I have found sometimes this is true, other times it is not.

 

Today’s pilot has powerful weather tools to help fly safely and sometimes more efficiently.  Now if your only going up for a few minutes perhaps it is good enough to just look up and decide if the weather is ok to fly. If you’re planning to be out for a while, a little research before leaving can cut your fuel costs and perhaps make the trip more interesting.  If you're planning a multi-day trip, learning what the weather is expected to be and keeping an eye on the weather during the trip is a must.

 

I use a variety of tools depending on what type of flight I am taking.  I always use the NOAA Graphical Forecast no mater what type of flight I am taking.  It is exceptionally easy to use.  It’s great for checking today’s “local” weather or examining the expected weather over a multi-day cross country adventure.

 

I also like Runway Finder.  You can check official aviation charts, Goggle terrain, Google Satellite, Goggle road maps, airport weather, terminal area forecasts, and airport information.  A simple route planer is also included for checking distances.  It also has links to AirNav for additional airport info including fuel info.

 

For detailed winds aloft data, it’s hard to beat Flight Path Tool. Once you learn how to use it, this is the tool that may let you beat the wind.

 

Last weekend I flew several hundred miles south then back north again.  I used flight path tool and noticed that the wind was blowing to the south at all altitudes.  By climbing up high where the wind was strong I was able to fly south with a 50 MPH tail wind.  This gave an average ground speed of 148 MPH with an average RPM of only 2,665.  On the way home I stayed down on the deck and suffered only a 10 to 15 MPH headwind.

 

Today’s flight was quite interesting.  I flew in a large circle for nearly 5 hours.  I covered 467 miles and had a good tailwind most of the day.  I got 25.9 statute miles per gallon while averaging 99.3 MPH.  Average RPM was 2,280.

 

“Flew in a large circle and had a tailwind most of the day”?  How is that possible?  This morning I noticed, while using Flight Path Tool, that the winds below 6,000 feet in north/central California were depicted as rotating in a large counter clockwise circle.  I simply flew the circle and sure enough, that is what I found.

 

And now for some pictures.

 

Here is the big circle I flew today

I flew over Travis AFB

 

New Bullards Bar Dam

Here is the fateful sight of my off-field landing a few weeks ago.  Yes I did land at the first available spot and yes, I was out of time (oil pressure) when I picked it

And finally I spotted this little lost 750 up in the clouds just south of Cloverdale.  The guy sure looks familiar.

Steve

 

  • Sebastien Heintz

    Great info and post!
  • Rebecca Anne Shipman

    Bullards Bar and the Marysville road - brings back the memories when I used to pedal my bicycle all over Northern California. I would like to get back to northern CA with both an airplane and my motorcycle, and enjoy the surroundings. Really looking forward to getting my zodiac finished and fly it to the west coast. Maybe next year sometime?
    I like your attitude towards wind - I often try to figure out the best altitude for each direction. Since right now I'm just a renter, and the prices are wet, I don't go to any great efforts to minimize fuel burn, just time in the air.
  • Doug Dugger

    Great flight steve i had no idea where i was those darn winds had blown me about 2 miles away from my home airport and without you and all your wisdom of wind and sky i might not have found my way home so tanks a lot.
  • Stephen R. Smith

    Hey, don't mention it.  I am always glad to share my wisdom, blarney and whatever else I am full of...

     

    Steve

  • Shafid Khan

    I don't know how I ended up there Steve, I took off from Motueka, New Zealand for a short flight ???? Must be the wind. . .