APenNameAndThatA Posted January 15, 2021 Share Posted January 15, 2021 The Distance to Go, and the Distance to Go (Great Circle) are stated as being the same. This is a screenshot from a trip I was planning from Brisbane to South Africa. Link to comment Share on other sites More sharing options...
Ironpot Posted January 15, 2021 Share Posted January 15, 2021 Great circle is the shortest distance between two points. Link to comment Share on other sites More sharing options...
Yenn Posted January 15, 2021 Share Posted January 15, 2021 303 degrees seems a bit wrong to me. The starting heading would be something less than 270 deg. and it would change as the flight progressed, I doubt that it would reach 303 deg even for the last leg. 1 1 Link to comment Share on other sites More sharing options...
APenNameAndThatA Posted January 15, 2021 Author Share Posted January 15, 2021 51 minutes ago, Yenn said: 303 degrees seems a bit wrong to me. The starting heading would be something less than 270 deg. and it would change as the flight progressed, I doubt that it would reach 303 deg even for the last leg. That is a good observation. The quoted heading is for the rhumb line between the two points, and it certainly looks a lot less that 303° Link to comment Share on other sites More sharing options...
APenNameAndThatA Posted January 15, 2021 Author Share Posted January 15, 2021 5 hours ago, APenNameAndThatA said: That is a good observation. The quoted heading is for the rhumb line between the two points, and it certainly looks a lot less that 303° 6 hours ago, Yenn said: 303 degrees seems a bit wrong to me. The starting heading would be something less than 270 deg. and it would change as the flight progressed, I doubt that it would reach 303 deg even for the last leg. I forgot. The bearing in the rocket box is magnetic. The OzR people promptly replied to an email I sent, and pointed that out to me. It changes with magnetic variation. So, even the rhumb line would be wavy if it was represented literally instread of symbolically!!! 1 Link to comment Share on other sites More sharing options...
Jase T Posted January 15, 2021 Share Posted January 15, 2021 I would hopeif you were planing that flight (at least for the over water sections) you will be using a NAV system somewhat better than an iPad with OzRunways......... Link to comment Share on other sites More sharing options...
APenNameAndThatA Posted January 15, 2021 Author Share Posted January 15, 2021 1 hour ago, Jase T said: I would hopeif you were planing that flight (at least for the over water sections) you will be using a NAV system somewhat better than an iPad with OzRunways......... Just follow the grey line! Link to comment Share on other sites More sharing options...
onetrack Posted January 15, 2021 Share Posted January 15, 2021 What are you driving that has the fuel capacity and reserve for 6185Nm?? A B777?? Link to comment Share on other sites More sharing options...
jackc Posted January 15, 2021 Share Posted January 15, 2021 56 minutes ago, onetrack said: What are you driving that has the fuel capacity and reserve for 6185Nm?? A B777?? In flight refuelling 🙂 Link to comment Share on other sites More sharing options...
APenNameAndThatA Posted January 15, 2021 Author Share Posted January 15, 2021 1 hour ago, onetrack said: What are you driving that has the fuel capacity and reserve for 6185Nm?? A B777?? Aeroprakt A22LS Foxbat. It has long range tanks. 2 Link to comment Share on other sites More sharing options...
Yenn Posted January 16, 2021 Share Posted January 16, 2021 So what is the greatest magnetic variation on the trip? It would have to be greater than 60 degrees. I think Oz Runways are trying to pull the wool over your eyes. It is what they call a red herring. Link to comment Share on other sites More sharing options...
APenNameAndThatA Posted January 16, 2021 Author Share Posted January 16, 2021 17 hours ago, Yenn said: So what is the greatest magnetic variation on the trip? It would have to be greater than 60 degrees. I think Oz Runways are trying to pull the wool over your eyes. It is what they call a red herring. Magnetic variation is 30 degrees west for a fair bit of the trip. So, say, they took magnetic variation from halfway along the route, 303° would be correct. Link to comment Share on other sites More sharing options...
SplitS Posted January 18, 2021 Share Posted January 18, 2021 So what you are saying is the world is not flat hmmmm. /s Link to comment Share on other sites More sharing options...
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