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Pfalz DIII resources -- Photos, Drawings, Plans, etc.
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01-26-2008, 08:28 AM
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Sethhunter
Join Date: Jun 2005
Location: Princeton Junction, NJ
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RE: Pfalz DIII resources -- Photos, Drawings, Plans, etc.
Great to see more Pfalz'en coming to life!
Doc - can't help too much with trim since I haven't flown my DIIIa since I changed CG. My original set up was:
Airfoils: Gottingen 381 (see attached scan): look pretty and have nice characteristics. A bit thin. Used carbon to reinforce spars.
Incidence: 2 degrees top and bottom.
Engine: 2 degrees down and right
Stab: 0 degrees, inverted "flat-top" airfoil.
CG: 33%.
Plane climbed agreesively on full throttle. Dialed in some down. Held altitude nicely, Directionally "washy" probably due to aft CG. At low throttle nose dipped slighly and really grooved around the pattern in a cruise decend to a landing. I've moved the CG forward to around 27%; will see how she goes when the weather gets warm.
I've attached CAD outlines for my DXV. Time to start making it into model plans. Since the nose is pretty long, I'm thinking main access to inside/radio will be through engine cowl; That will give me a 14" hatch back to the center of the "W" strut. Like the Fokker DVII, wing is thick enough to make plug in panels, probably with tubes. Using modified Gott 303 airfoil. Just some early thoughts.
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