Originally Posted by
Lonewolf_50
Huh?
AnFI, your VSI does not care if your are at full max gross weight or sucking fumes with no payload at min operating weight, or anywhere in between. At low gross weights you will get a different amount of power needed .............................
......... but POWER has to account for weight versus performance desired.
So, NO, I don't think you are making a decent case for the VSI as a Power Meter.
Don't see how you can say that it's not a good case when you appear to have missed the point about the weight.
I
am clearly accounting for the weight - that is the point!!
Yes the Weight mulitplied by Vertical Speed is Power!!
the rest is fairly irrelevant (but pretty) about units:
Each 330lbs your aircraft weighs means 1Hp for 1 unit on the VSI.
or (in other words)
AUW/330lbs times VS (in 100fpm) is power.
or
Divide your weight in lbs by 330 and what you get is how many Hp each 1 unit on the VSI is worth.
It is effectively your
Potential Energy Power required/gained.
As opposed to your
Fuel Energy Derived Power (which is what your engine is does and you'll find information about that on a Torque Guage etc).
Please confirm that you were missing the point or have I misunderstood your point?
If you don't understand that or don't think it's pretty then f.. f... f... fine