Help CG for flying wing thing
02-13-2008, 11:44 AM
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Help CG for flying wing thing
Does anyone have a formula for finding the CG of this thing? Sort of looks like one of the ships from the tv series, battlestar galaktica. Or even if anyone has a name, that might help me.
02-13-2008, 11:59 AM
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RE: Help CG for flying wing thing
Look at the recent thread: C.G. calculator
The 2nd or third post in it lists 4 online applications that take your measurements and spit back out a CG location. Two of them are worthwhile if you model has a "normal" tail. Two of them only use the wing measurements. They aren't of much value for a normal model, but would be great for a flying wing.
The 2nd or third post in it lists 4 online applications that take your measurements and spit back out a CG location. Two of them are worthwhile if you model has a "normal" tail. Two of them only use the wing measurements. They aren't of much value for a normal model, but would be great for a flying wing.
02-13-2008, 12:20 PM
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RE: Help CG for flying wing thing
Thanks da rock,
I had seen those web sites and tried my figures. I don't have a tapered leading edge, rather a tapered trailing. Thanks
I had seen those web sites and tried my figures. I don't have a tapered leading edge, rather a tapered trailing. Thanks
02-13-2008, 01:48 PM
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RE: Help CG for flying wing thing
Use a MAC (Mean Aerodynamic Chord) calculator to find the MAC and then put the CG at 18% of the MAC and just extend that to the wingtips so you know where to put your fingers.
Flying wings provide their own stability so you need to do the CG differently. On any flying wing under no circumstances should the CG ever go further back than around 23 to 27%. Even with that range the model would be pitch neutral. Further back than around 27% and it'll want to swap ends. Normal CG ranges for flying wings is around 18 to 22% of the MAC.
Flying wings provide their own stability so you need to do the CG differently. On any flying wing under no circumstances should the CG ever go further back than around 23 to 27%. Even with that range the model would be pitch neutral. Further back than around 27% and it'll want to swap ends. Normal CG ranges for flying wings is around 18 to 22% of the MAC.
