109 e4 performance

[CaptainDoggles]

There's no such thing as an exact value in engineering. EVERYTHING has a tolerance.

• That hole you drilled? Only accurate to within ±1mm.
• The elastic modulus of steel? It's a statistical range that depends on the microcrystalline arrangement of the atoms.
• The shear stress of your wing spars? Depends on the cross-section which is not accurate because of tolerances in the manufacturing process.
• Horsepower you get from fuel? Depends on chemical composition, which is again subject to tolerances and impurities introduced when it is refined and processed.

[Robo.]

Originally Posted by CaptainDoggles

There's no such thing as an exact value in engineering. EVERYTHING has a tolerance.

• That hole you drilled? Only accurate to within ±1mm.
• The elastic modulus of steel? It's a statistical range that depends on the microcrystalline arrangement of the atoms.
• The shear stress of your wing spars? Depends on the cross-section which is not accurate because of tolerances in the manufacturing process.
• Horsepower you get from fuel? Depends on chemical composition, which is again subject to tolerances and impurities introduced when it is refined and processed.

CaptainDoggles - this is pretty much what I was talking about, I would really appreciate having certain variations in parameters and performance (I actually believe such a thing is present in the sim now, at least overheating behaviour...). What I am trying to do is, to come with something constructive, e.g. some numbers usable for the devs, from which these say Vmax ranges for the aircraft in the sim might be calculated.