difference between the spitVb and the spitLF V??

[David198502]

hey swiss!!!il2 compare works fine!but can you explain me the 4 types of diagrams?
MAX TAS by altitude,max ROC by altitude,ROC by constant TAS and turn time by speed.
as i understand it, max tas by altitude shows the maximum speed in a certain altitude, turn time by speed shows the time the plane needs to fly a 360degree turn with a certain speed, and roc at constant tas shows the altitude the plane gains with a certain speed in a certain time.please correct me if i misunderstood something. and i dont know what the max roc by altitude-diagram shows.answers would be appreciated!!