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An aircraft had an empty weight of 2886 lbs with a moment of 101673 before several alterations were made.

a. Removing 2 passenger seats (15 lbs each) at station +71
b. Installing a cabinet (97 lbs) at station +71
c. Installing a seat and safety belt (20 lbs) at station +94
d. Installing radio equipment (30 lbs) at station +94

The alterations caused the new empty weight center of gravity (CG) to move. Calculate the new empty weight and CG.

Answer :

Final answer:

The alterations made to the aircraft's empty weight caused the CG to move in different directions depending on the location of the weight added or removed.

Explanation:

The question is related to the effect of several alterations on the empty weight CG of an aircraft. Let's go through each alteration:

  1. Removing 2 pax seats (15 lb ea) at +71: This alteration reduces the weight at a specific location on the aircraft, so it moves the CG in the opposite direction.
  2. Installing a cabinet (97 lb) at +71: This alteration adds weight at the same location, so it does not affect the CG.
  3. Installing a seat and safety belt (20 lb) at +94: This alteration adds weight at a different location from the previous alteration, so it moves the CG slightly.
  4. Installing radio equipment (30 lb) at +94: Again, this alteration adds weight at the same location as the previous alteration, so it does not affect the CG.

In summary, removing the pax seats moves the CG in one direction, while installing the seat and safety belt moves it slightly in the opposite direction. The other alterations do not significantly affect the CG.

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