5 replies to this topic

[Cheech]

Im building a brand new AFCAD file for one of my favourite airports (Okotoks) and I am stuck at one part. I have all the info (so far) ready except for one thing. What is the displaced thres  and   overrun area ?

[SargeJr3]

the displaced threshold and overrun area is a peice of concrete, before the runway,

[Cheech]

oh threshold....i thought thres was thee whole word....nvm i already knew that. Thanks scavers.

[SargeJr3]

Renegade, on Feb 26 2005, 07:28 PM, said:

oh threshold....i thought thres was thee whole word....nvm i already knew that. Thanks scavers.

hop on msn

[IBtheSarge]

Renegade, on Feb 26 2005, 10:06 PM, said:

Im building a brand new AFCAD file for one of my favourite airports (Okotoks) and I am stuck at one part. I have all the info (so far) ready except for one thing. What is the displaced thres  and   overrun area ?

In FS9, you'd define the "runway" as the surface from the starting point at one end to the starting point at the other end (solid white lines across the runway at each end -- i.e., usable, maintained runway surface for take-offs).

An overrun is the last bit of runway surface at either end of the runway, usually marked with yellow arrowheads pointing away from the airport.

A displaced threshold is a part of the runway surface at either end of the runway, ahead of the starting point.

In other words, an aircraft taking off would line up at a starting point at the beginning of the displaced threshold.  An aircraft landing would have a touchdown zone AFTER the displaced threshold.  The logic is an airplane with most of its fuel burned off will require less runway (to stop) than an aircraft at/near maximum take-off weight will require to take-off.

[Cheech]

Thanks sarge.