RCU Forums - View Single Post - NEGATIVE ELEVATOR STAB INCIDENCE - NEEDED?
Old 01-13-2009 | 04:43 PM
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F86_SABRE
 
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Default NEGATIVE ELEVATOR STAB INCIDENCE - NEEDED?

OK here is one for the list:
I am browsing this scale drawing and noticed that the elevator stab has a 1.5 degrees negative incidence (to clarify - the leading edge is pointing downwards). Presumably the aircraft will have a tendency to lift the nose. The aircraft in question is the Pilatus PC-21. I do not know whether the wings have positive incidence, presumably yes. The engine is pointing 4 degrees down and 3.5 degrees side thrust (to starboard).
Question:
In this case of r/c planes would one introduce such a feature of having a negative incidence on the elevator stab if one maintained the same engine incidence of 4 degrees? Is it advisable to emulate or should it be 0-0 type?

Your contributions will be most welcomed.

With thanks

Reuben