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- Dec 16, 2012
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Just had my PA32RT 300 1979 Lance II reweighed after some major avionics changes. Unfortunately, the shop made a clerical error that has caused me to dig into the new W&B. They weighed the aircraft full fuel and subtracted 564 lbs at an ARM by POH of 93.6.
The POH says to empty fuel, add 4 unusable gallons back in and then weigh. Using the formula in the POH to calculate the CG ARM.
Their calculations come out to 2234 - 85.6 - 191215.7
However, if I use the POH formula CG ARM = N(A) + (R+L)(B)/T
And I subtract the usable fuel from the R+L above (564) and the T, I get...
2234 - 81.5 - 182115.7
Is one of these correct, or do I need to have them empty the fuel and start over?
The POH says to empty fuel, add 4 unusable gallons back in and then weigh. Using the formula in the POH to calculate the CG ARM.
Their calculations come out to 2234 - 85.6 - 191215.7
However, if I use the POH formula CG ARM = N(A) + (R+L)(B)/T
And I subtract the usable fuel from the R+L above (564) and the T, I get...
2234 - 81.5 - 182115.7
Is one of these correct, or do I need to have them empty the fuel and start over?
