Lunar Landing v0.51 by Secoh, Feb 2003
This is primitive but fair flight simulator. You have a vehicle that moves downward in the gravity field with some aerodynamic friction in the atmosphere. The object is released at some height and then you can control thrust which is greater just a little than the gravity. Your aim is to land (at X=0) with safe speed or slower.
Controls:
First, enter all the physical properties of the environment. You have to enter a numerical value and finish it by Enter key for each line. Don't leave empty lines. Enter the default values (shown in the prompt) if you are not familar with physics or math.
In flight, press Space key to activate thrust or ESC to abort the mission. Program will display your position and speed in real time.System requirements:
Windows 95, 98, Me, 2000 or XP. Processor at least 500MHz is recommended.Math:
This is evolution numerical equation for acceleration and sum of forces. Gravity is constant, friction is proportional to square of speed. Thrust force is pulsing, it goes ON when you press the Space key and stays ON for small time, then goes OFF.
The safe landing speed is calculated based on sag of 1 meter at double gravity acceleration (that is, square root from two times G constant).History:
This game has VERY long history. This particular version is obviously inspired by stories of Pavel Shumil (want 3D? :)).Downloads:
Executable: LLTW-executable.zip (43.0k)
Source code: LLTW-source.zip (4.1k)Update from Feb 27, 2003
Now you can brake by "wings". That is, you can increase Cx from its initial value by the magnitude of Cx gain. So now, the new flight mode is available: landing with Kg less than 1. Note, though, you cannot exceed the safe braking acceleration limit, otherwise wings break.To increase Cx, press Q. To decrease — press A. If you press A or Q frequently, Cx changes faster.