Aerodynamics

What is Specific Range?

“What is meant by the term ’specific range’?”
This is the question that I asked David Wyndam of Conklin and de Decker after coming across this term while looking at some aircraft comparison performance tables.
The performance tables listed the specific range for various airplanes in both long range and high speed cruise.  For instance, the specific [...]

Definition of Va (maneuvering speed) and Vno

Thought I would post a recent thread from our forum:
Here was the question that was asked:
Could you please give me a detailed explanation of maximum structural cruising speed. I’m confused as to why it is higher than manuevering speed and doesn’t change with weight like Va does if they both are turbulent air penetration speeds?
Thanks [...]