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dihedral

Old 01-08-2020, 02:03 AM
  #1  
JaJo
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Hello,





I'm new here, I have just started to build a Ziroli shrunk ( 2.5 meter ) DC3 from plans.

My second project from plans, can you please help?

Would like to know the angle of the wing root rib, which is rib nr.7 that connects to the centre section rib nr.6 for the wing Dihedral.



Help would be much appreciated.



Thank you.



JaJo

Please direct me to the right section if I'm wrong here.
Old 01-09-2020, 02:25 PM
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RBACONS
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1. If you know the dihedral angle, then its 90 deg - dihedral angle.

2. If the plans just tell you how much to block up the wing tip, then you'll need to measure the distance from the root rib to the point on the building board to where the wing tip is blocked up. Enter these 2 distances in one of the many on-line right triangle calculators and it will give you the dihedral angle. Then do step 1.
Old 01-14-2020, 08:13 AM
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JaJo
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Thank you for the Informarion RBACONS I have the left wing almost complete, and calculatedd the angle of the root rib which is 9 degrees

Greeting
Old 01-16-2020, 05:11 AM
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RBACONS
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You may want to double check. 9 Degrees sounds like a lot. I think the full size dihedral is 5 degrees.

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