Max Weight of Non Lift Producing Components

I believe you are correct, you don't want to overload the spar with fuselage weight, thus, spread it out through the wings.
I know some ships had water in the wings but also additional in a tank in the fuselage to get the wing loading up due to low volume wings. You would load the wings, then finish off with the fuselage. Dumping ballast is fuselage first, then wings.

As to MTOW, some larger aircraft also have a MLW, max landing weight which I believe is mostly due to loads when the mains hit the runway.
So, some aircraft can take off at a higher weight than they can land! So, if they run into an issue, they may have to fly around to burn fuel off to get within landing weight, or even dump fuel (don't tell the EPA!).

Screw the EPA!Â* When I was doing engine out maintenance recovery
flights, it was standard practice to open all the tank dump valves
before take off leaving only the wing tip nozzle valves to start fuel
dumping.Â* That might save a second or two should the situation become
critical.

On 11/30/2017 8:56 AM, Charlie M. (UH & 002 owner/pilot) wrote:
I believe you are correct, you don't want to overload the spar with fuselage weight, thus, spread it out through the wings.
I know some ships had water in the wings but also additional in a tank in the fuselage to get the wing loading up due to low volume wings. You would load the wings, then finish off with the fuselage. Dumping ballast is fuselage first, then wings.

As to MTOW, some larger aircraft also have a MLW, max landing weight which I believe is mostly due to loads when the mains hit the runway.
So, some aircraft can take off at a higher weight than they can land! So, if they run into an issue, they may have to fly around to burn fuel off to get within landing weight, or even dump fuel (don't tell the EPA!).

--
Dan, 5J

Well.....all I can say is, the EPA is a major US government agency, thus, likely quite large.
So, either eat a huge amount of oysters or renew your prescription for your "little blue pill of choice" as it may be borderline on screwing the whole agency......
YMMV.......
;-)

Whatever.....the basics of what I posted is correct (minus stupid side comments on my part). I'm really concerned on the physics. I believe I am correct.

I'm not an engineer.
I know a few.
I can spell it.
I have not stayed at a certain hotel chain in a couple years.

:-)
LOL......