It's simple....The thristiest powerplant around is the YS170-175. These modelsnormally carry 20fluid ouncesfuel (of SG of around 0.87, or about 18 ounces fuel, weight basis) (Remember that 1 fluid ounce = 1.04 ounces water weight)

Adding this much weight tothe 5 kilo max empty weight equals 5515 grams at TAKEOFF ONLY....Itquickly drops as the fuel is used.

I am saying todivide the 18 ounces of fuel weightin half to come up with the "maximum potential average", or about 9 ozs. Add 9 ozs (about 257 g) to the current max of 11 lbs (5000 g). In other words, allow the excursion for wet power to 5515 g at TAKE-OFFwith the knowledge that it will be consumed, but understand that the average max is the operative max of 5257g (or 5260 g). Make 5260 the Max for E, case closed.

This will obsolete nothing currently flying and allows all the leeway we need.....Try not to get so hung up on TAKE OFF weight....

Rather, why not use the Average Operative Weight as the Max allowed in the middle of a flight. Average Max for E power is simple. Average Max for wet happens in the middle of a flight.

It's a compromise solution that accommodates the fuel difference of two different types of powerplants, that's it