PLT035: Vne
What code PLT035 covers, why the FAA tests it, and how to study Vne before your checkride.
Define Vne / Vno
What this means for your checkride
Vne is the never-exceed speed, the red line on the airspeed indicator you must never pass in any operation. Vno is the maximum structural cruising speed, the top of the green arc, above which you should fly only in smooth air and with caution, because gusts could overstress the airframe.
These speeds define the edge of safe operation, so the FAA tests whether you can identify them on the airspeed indicator and know the different rules that apply above each.
Pilots treat the yellow arc as normal cruise. The range between Vno and Vne is the caution range, for smooth air only; flying there in turbulence is how gust loads exceed the airframe's limits.
Where to study it
A code on your test report is an area of deficiency. An authorized instructor must review it with you and endorse that review before you take the practical test, and the examiner may revisit it during the oral. Study it until you can explain it out loud, not just recognize the answer.