Originally Posted by
oceancrosser
If adding 1t of fuel for any airplane results in c.g. out of limits, something is seriously wrong. Fuel tanks are usually near the middle of the airplane and (except for trim tanks) fuel load results in limited change to c.g.
Generally you can say yes to the OPs question, unless you hit some other limit. Usually a ZFW limited flight can add fuel upto MTOW (or limited TOW) or Max Fuel Capacity. For a shorter leg MLW might be limiting. In which case reducing ZFW by 1t does allow adding 1t of fuel.
Thank you for your reply
oceancrosser and
FlightDetent. A few questions to your reply.
1. @
FlightDetent why will MLW become limiting if we substitute 1T of payload for 1T of fuel? The payload would have remained fixed for the flight so with that in mind, so will the fuel. We would not be adding to the MLW as 1T of payload has been removed to accommodate the 1T of fuel. That is my logic. Please correct me if my thinking is wrong.
2. @
oceancrosser good point about the CG shift but as mentioned I do not think this will happen as wings are in the center. However will check the FCOM for this.
Thanks Gents.