Impact of different cabin baggage weight allowance.
On another forum, a question has been raised about the cost saving, in fuel terms, that can be made by reducing the cabin baggage allowance from 10kg to 5kg per passenger. The aircraft in question is a 787 flying from the UK to the Caribbean.
My back of an envelope calculation was that if everyone of the 330 or so pax carried a 10kg carry on bag, rather than 5kg, the extra weight would be 1750kg. Do the flight crew take cabin luggage weight allowance into account when calculating fuel burn, and would there be any significant cost saving with the lower 5 kg per person allowance?