So I've been fooling around with SketUp for a week, working on a 1:1 BF-109F model, and have noticed something. The wing is too fat!
I've been scaling down a NACA 2414 aerofoil shape according to the chord length, but the thickness appears to be too much. I assumed that it would scale down at a uniform rate, but I'm ending up with what appears to be a chubby wing.
I've read that the BF-109 starts out with a NACA 2414 aerofoil, then transitions to a NACA 2411 at the ends, but that doesn't seem to be an issue as it's apparently too fat before I've cleared the tips of the wheel wells.
Questions:
1. Is it actually a NACA 2414 -> 2411 transition?
2. If it is, exactly when does the transition from one to the other take place?
3. If I have the right aerofoils, do they scale down uniformly, or does the thickness scale down faster than the chord length?
4. If the scaling is not uniform, then how does it scale down?
5. Do I have the entirely wrong wing shapes?
Thanks in advance.
p.s. I have been gathering data from http://airfoiltools.com/airfoil/details?airfoil=n2414-il (picking the two I mentioned from the list, and plotting them at a large scale to trace in SketchUp).
I've been scaling down a NACA 2414 aerofoil shape according to the chord length, but the thickness appears to be too much. I assumed that it would scale down at a uniform rate, but I'm ending up with what appears to be a chubby wing.
I've read that the BF-109 starts out with a NACA 2414 aerofoil, then transitions to a NACA 2411 at the ends, but that doesn't seem to be an issue as it's apparently too fat before I've cleared the tips of the wheel wells.
Questions:
1. Is it actually a NACA 2414 -> 2411 transition?
2. If it is, exactly when does the transition from one to the other take place?
3. If I have the right aerofoils, do they scale down uniformly, or does the thickness scale down faster than the chord length?
4. If the scaling is not uniform, then how does it scale down?
5. Do I have the entirely wrong wing shapes?
Thanks in advance.
p.s. I have been gathering data from http://airfoiltools.com/airfoil/details?airfoil=n2414-il (picking the two I mentioned from the list, and plotting them at a large scale to trace in SketchUp).
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