Game Guides, Cheats, Codes, Hints and Walkthroughs for X-plane on PC.
Enter the weight and fuel section in the settings menu. Set the fuel load to maximum. This will make the fuel tank full again. This can be repeated as needed.
Pilot the X-15 and use the B-52 drop in LocationSpecial In-flight. Press [Space] to be released and aim straight up. By the time you are out of fuel, you will be in space.