The following table describes the most often used integer, fractional, floating-point, and other data types in Flight Simulator.
| Data type | Memory usage | Representation | Range |
| Unsigned integer byte | db 12h | i | 0–255 |
| Signed integer byte | db 12h | I | -128–127 |
| Unsigned integer word | dw 1234h | ii | 0–65535 |
| Signed integer word | dw 1234h | ii | -32768–32767 |
| Unsigned fractional word | dw 1234h | ff | 0–65535/65536 or .0000–.ffffh |
| 24-bit signed integer | db 56h, 34h, 12h | iii | -8388608–8388607 |
| 24-bit signed integer and fraction | db 56h ;fractional byte | ||
| dw 1234h ;integer word | ii.f | 0000.00h–ffff.ffh | |
| 48-bit signed integer and fraction | dw 9abch ; fractional word | ||
| dd 12345678 ;integer dword | iiii.ff | 00000000.0000h–ffffffff.ffffh |