Will.iam Posted December 3, 2024 Report Posted December 3, 2024 Was just curious why you can not weigh the airplane empty and then just mathematically add the 3 gallons of unusable fuel to make the empty weight?
EricJ Posted December 3, 2024 Report Posted December 3, 2024 36 minutes ago, Will.iam said: Was just curious why you can not weigh the airplane empty and then just mathematically add the 3 gallons of unusable fuel to make the empty weight? You can, you just need to make sure it's actually fully empty, maybe by removing the sump drains and shaking it a lot. You can also weigh it full and subtract it down to unusable, which is usually the easiest path. 2 1
Will.iam Posted December 4, 2024 Author Report Posted December 4, 2024 On 12/2/2024 at 10:12 PM, EricJ said: You can, you just need to make sure it's actually fully empty, maybe by removing the sump drains and shaking it a lot. You can also weigh it full and subtract it down to unusable, which is usually the easiest path. Thanks. I figured both fuel caps off and drain plug removed with a shop vac blowing air through the wing would expedite evaporation of any fuel that might still be left in the tanks after the drain. Outside of course with a long shop vac hose to the tank. Don’t want the electric motor of the vac lighting off fuel vapors.
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