ATM limitations

[Driver170 42]

Hi before i jump into the cockpit and start her up, i do alot of limitation checks before hand and below is on of them, The ATM...

 

Enter and confirm the assumed temperature which reflects the maximum selected reduction available for takeoff. Assumed  temperature thrust reduction shall be used with the exception of  the following:

 

TOW is within 500 kgs of the RTOW (1000kgs when obstacle limited)

 

Can you'll explain the difference between MTOW and RTOW while calculating ? just not sure and need some help. thanks.

[rsvit 16]

MTOW is maximum TOW which aircraft can handle.

RTOW is max TOW which can be applied in current conditions - runway, obstacles.

[Driver170 42]

Thanks. But how can i work this out as topcat doesn't? Or do we actually need to know this as flight simmers?