Maximum payload range and maximum range. But where is the difference?

Question

Maximum payload range and maximum range. But where is the difference?

Answer 1

look at it this way,

take a baseball and throw it. This is the maxium range you can throw.

Now take a ball of lead the same size as a baseball and throw it. this is your maxium payload range.

Both are the same size!, but one is lighter, right?

Same thing with aircraft, as weight increases, the amount of force required to move it will be much higher, and this force is produced by burning fuel. So a lighter aircraft will require less fuel for a given distance.. Follow me thus far?, So since an aicraft has a (lets assume for the sake of explaniation) that an aicraft has a set amount of fuel, the heavier aircarft will not be able to travel as far as the lighter aircraft, since the only variable now is distance, since weight and fuel payload are now fixed.. so the only thing that can change is distance .. or RANGE.

Answer 2

Many airplanes have a maximum 'zero fuel weight'.  Fill the airplane with non-fuel payload up to this weight and you have max payload.  From this point, additional weight up to maximum gross take-off weight must be fuel.

Another way to load the airplane is to fill the tanks with fuel.  Then, the rest of the weight is payload -- maximum range with maximum fuel.

Answer 3

max paylload range is the range it will travel  with the max payload.

maximum range is the range it travel with no load.

Answer 4

MPR is how far it will go fully loaded.  Max Range is with no load other than fuel and crew.