First, the photo depicts a vector diagram during a climb. L means Lift. Lv means the vertical component of lift. Lh means the horizontal component of lift. T means Thrust. D means drag. W means weight. Wh means the horizontal component of weight. Wv means the vertical component of weight. Lh perpendicular to Lv and Wv is perpendicular to Wh.
I have several questions about this.
did I draw correctly?
in a stabilized climb, is T=D+Wh and Lv=W?
if the answer to the above question is "no", then why not. If it is "yes", then in a stabilized climb, L must be greater than when it is in straight-and-level flight(ie greater than W), so that Lv equals to W. Am I right?
what about Lh. What is its role? Does is contribute to drag as well?