What is the new empty weight after the four modifications?

• A. 2100
• B. 2160
• C. 2115
• D. 2141

Answer: (D)

The main idea is: new empty weight is the original empty weight plus the total weight of all permanent modifications. Empty weight represents the airplane in its standard, fixed configuration, including permanently installed equipment, but excluding usable fuel and payload.

So, you take the baseline empty weight, add up the weights of the four modifications, and that sum gives the new empty weight. If any modification were to replace or remove equipment, you’d subtract its weight in the same way, but here the four modifications collectively increase weight.

In this problem, the four modifications together produce a total that results in a new empty weight of 2141 pounds. That’s why 2141 is the correct value. The other numbers would require a different total modification weight or a different baseline, so they don’t align with the given data.