All good answers, thank you. I was just curious, as I've found myself in the green on Torque and Ng when doing HOGE checks prior to landing in some of these hover holes to pick up patients. Then on take off, I've found myself to be mid to high range yellow on the Ng depending on how much of a load I've taken on.
I always do a perfomance check on one of the VEMD screens which takes into account Temp, weight, alt, etc. and it gives you a theoretical weight you can be at to have HOGE and HIGE. I've found it to be pretty accurate, but was curious as to other "rule of thumbs" and if there was some sort of formula. For example, the VEMD is giving a theoretical weight to have HOGE based upon temperature, weight, and altitude, but I was wondering if there is a way to determine how much more Ng and Tq will be required on take off(with additional weight) vs what was displayed when doing the HOGE check prior to landing
Anyways, I was just more curious than anything and found it to be good food for thought. Thanks.