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curvature of the earth


Captain Andy Poppens

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When I was flying the Concorde in my Sim, I was at Flight Level 640 (64,000 feet), the sky was almost black and the earth's curvature was almost flat. Kind of outta luck on that! You might want to give the Space Shuttle a try.

Still thinking about a new flightsim only computer!  ✈️

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Here's an FSX U-2 at 60,000 ft and the earth is definitely curved; problem is the U-2 won't stay up there and descends in a flat semi-stalled condition like here, it's an FSX high-altitude issue with some planes.

PS- to get up there, use the Slew keys, I can't remember if they work in FS2004 too, but in FSX if you hit 'Y' to enter Slew, then hit 'F4' you'll go straight up forever until you press 'Y' again to exit Slew-

 

http://i53.photobucket.com/albums/g64/PoorOldSpike/sub2/FSX-U-2_zps5ab55f7e.jpg~original

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No wonder I can't get the DHC-3 Otter airborne! The POH says the Otter's Takeoff Run is proportionate to 'the curvature of the Earth', so if there's no 'curvature' modeled in FS9 then...???

 

AHHH HAA HAA HAA!!!

 

Alan :p

"I created the Little Black Book to keep myself from getting killed..." -- Captain Elrey Borge Jeppesen

AMD 1.9GB/8GB RAM/AMD VISION 1GB GPU/500 GB HDD/WIN 7 PRO 64/FS9 CFS CFS2

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FS2004 does not model the earth's curvature; no matter how high we fly we are still members of the flat earth society (I've been to 100k ft. and it is still flat). I believe FSX does model this.

 

What he said .... which is what I said before being wiped off the slate .......

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  • 2 weeks later...
well is there any freeware that models the curvature of the earth

 

That would require recoding the base game which, while technically possible, is not practical (and probably not legal). It is not just altering the horizon, and a curvature which varies with altitude, but with remapping textures from a flat to a spherical base; all by editing default files (.exe and .dlls), which blatantly violates Micro$oft's EULA.

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That would require recoding the base game which, while technically possible, is not practical (and probably not legal). It is not just altering the horizon, and a curvature which varies with altitude, but with remapping textures from a flat to a spherical base; all by editing default files (.exe and .dlls), which blatantly violates Micro$oft's EULA.

 

Which roughly translated means ....... NO

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FS2004 does not model the earth's curvature; no matter how high we fly we are still members of the flat earth society (I've been to 100k ft. and it is still flat). I believe FSX does model this.

 

That's because FS9 was created before Columbus ever said the world was round... Having said that, it is still the most trouble free, the absolute best flight sim Microsoft ever made; I wouldn't trade it for anything!

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That's because FS9 was created before Columbus ever said the world was round... Having said that, it is still the most trouble free, the absolute best flight sim Microsoft ever made; I wouldn't trade it for anything!

 

Bravo! ..... Right On! ...... Magnifico! ...... Long Live the Flat World of FS2004 (not FS9 ... I'm a purist).

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FS2004 does not model the earth's curvature; no matter how high we fly we are still members of the flat earth society (I've been to 100k ft. and it is still flat). I believe FSX does model this.

 

The FS2004 SDK Creating Terrain and Land Classification gives the facts:

 

Appendix: The World Coordinate System

 

One of the most powerful features of BGL is that everything is based on a world coordinate system that is spherical and very much like latitude/longitude.

 

In Flight Simulator, the earth is defined as an “oblate spheroid,” an ellipse rotated about its minor axis. In terms of shape, it's much like a sphere that is a little bit fat around the equator. In Flight Simulator, the earth has the following dimensions:

· Equatorial diameter=12756.27 km

· Equatorial circumference=40075.0 km

· Polar diameter=12734.62 km

· Polar circumference=40007.0 km

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