In my (failed) Pole to Pole flight I carried 2000lbs. extra fuel in drums in the back of the DC-3. If required; I would land and pump the fuel into the wings - helped out immensely in the Arctic; where the nearest strip with a fuel pump was around 2300kms away.
If you want a real challenge; go into the Panel file and disable the GPS - relying on visual cues makes for a totally different flight!









