Hover OGE Charts...

[Medhawkdriver_25]

Can someone point me to a good reference that outlines the requirements a manufacturer has when creating a Hover OGE chart?

I had heard at some point that some manufacturers publish performance based on "flying into" the OGE hover vs. ascending to it.

I had also hear that OGE Hover power was defined as the power required to ascend vertically at 200fpm while in an OGE hover...(This claim seems a little far fetched to me...)

Are there published FAA, CAA, EASA, etc guidelines set forth to regulate how these charts are created?

Thanks for your input.

SB