Gary,
About ten minutes after sending my earlier post I realized that as with so many aerodynamic happenings one thing leads to another and I needed to say a little more, perhaps, in this case, 'completing the circle' is the appropriate way to put it . Pushing one wing tip forward is the same aerodynamically as keeping the wing where it is and twisting the fuselage beneath it. This offsets the fin. Now offset on a fin, of itself, does not make an aeroplane turn but it does yaw the aeroplane so that one wing tip is forward of the other so, we are back to where I started in the original post. I will try now to complete things in a little more detail. The incidence difference on the two sides of a skewed wing will cause the aeroplane to roll into a bank. Some of the lift will now be acting sideways and the weight, as ever acting downwards, will cause the model to sideslip. The airflow will now be sideways onto the model, hitting the fin from the side and trying to turn the model in the direction of the sideslip (and eventually a spiral dive) however this oblique flow will also be interacting with the dihedral and if the dihedral and fin area are nicely balanced then a smooth banked turn will be the result.
John
Received on Mon Nov 05 2012 - 17:41:11 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:47 CET