Hi team,

 

Will PMDG be supplying us (the consumer) or the guys at Topcat a 777-300er takeoff performance module. (De-rate takeoff performance etc).

 

It is included in the real world in the form of the EFB.

 

 

Cheers,

 

Alex

 

 

Will PMDG be supplying us (the consumer)

 

Not to my knowledge.  They never have before...

 

 

 

or the guys at Topcat a 777-300er takeoff performance module. (De-rate takeoff performance etc).

 

More likely, but that's a question for Christian and his team over there.

To be honest, I think it should be down to the developer of payware aircraft to at least supply the performance (for PFPX as well) data to these companies.

 

Alex

To be honest, I think it should be down to the developer of payware aircraft to at least supply the performance (for PFPX as well) data to these companies.

 

'Should' is all well and good, but 'should' doesn't go too far in the land of licensing someone else's data.  Boeing licensed it to PMDG, and not to PMDG-and-whoever-else  :wink:

 

I'm with you in that it would be awesome if they could (it would make getting TOPCAT/PFPX data a heck of a lot faster), but that's up to other people's legal teams to hash out.

Flightsimsoft makes the product, they do not open the data format, and they want to keep control. There is no way PMDG would be able to supply 77W data, even if they wanted.

It makes sense that TOPCAT people want to stick to real data, but with their development schedule (their "soon" makes PMDG "soon" seem like "It's been out since yesterday, haven't you noticed?") it's just... well, quite Gogolean in laughter through tears way.

Max takeoff weights for given pressure altitude, rwy length and OAT is already given in the manuals. You can find the MTOW weight according to tables and use assumed temp method if you are lower than MTOW. I'd import the tables into a spreadsheet program and let it interpolate to save time. There are a few limitations though, the tables are for TO thrust and Flaps 15 only, you still need to be mindful about the obstacle limits etc.. Flaps 15/20 performance is very similar, add +5 tons to MTOW for flaps 20, and if you are really light then the MTOW reduction factors for TO-1 and TO-2 are 0.926 and 0.860 respectively, then use assumed temp method..

 

Bozhan Ozsoy

We have never supplied them with performance data - they're using the same real-world Boeing data we use to build our simulations. We are not allowed to distribute performance data to anyone vis a vis our agreement with Boeing.

Then can't you make your own module for us, Ryan?

 

 

Then can't you make your own module for us, Ryan?

 

As I said, nobody knows how to make this.

 

 

 

Max takeoff weights for given pressure altitude, rwy length and OAT is already given in the manuals. You can find the MTOW weight according to tables and use assumed temp method if you are lower than MTOW. I'd import the tables into a spreadsheet program and let it interpolate to save time. There are a few limitations though, the tables are for TO thrust and Flaps 15 only, you still need to be mindful about the obstacle limits etc.. Flaps 15/20 performance is very similar, add +5 tons to MTOW for flaps 20, and if you are really light then the MTOW reduction factors for TO-1 and TO-2 are 0.926 and 0.860 respectively, then use assumed temp method..

 

This is... if not wrong, then very simplistic. TOPCAT does a lot more than that.

I know it's the same data but I am merely pointing out that it is possible for PMDG to do a performance module,

 

The EFB in most 777's features this 

TOPCAT already has it for the 777-200 and the 777F in their latest beta. Seems like it would be a waste of time to me at this point.

 

 

I know it's the same data but I am merely pointing out that it is possible for PMDG to do a performance module,

 

No. There is no documentation about the TOPCAT perf module format.

 

 

 

The EFB in most 777's features this 

 

This leads me to think you are actually talking about a separate endeavour?

Although the news are a bit older but AURASIM also announced to include the 777 in their web-based performance app.

 

http://www.aurasim.com/news/news-triple-seven/

 

I am not sure if the project is still alive though.

The -200LR module for topcat could be used for the 77W, especially as the MTOW etc are very similar. I realize it is not perfect but unless you want to calculate it yourself each time, this would come pretty close. (Before I get flamed, I realize there are a lot of other factors that a performance calc takes into account.)

Well the 300ER got me so excited I went ahead and created an excel spreadsheet for the takeoff performance. It calculates a MTOW for a given airport altitude, QNH, wind velocity/direction and rwy length. Moreover, if the actual TOW is lower than the MTOW for the given conditions then it provides an assumed temperature. V speeds by FMC, flaps 15, dry rwy and TO thrust only. I haven't touched the FSX in years and I don't think I will until after xmas, but if anyone from the beta team is interested I can share the file. It should provide the basic data until Topcat for 300ER is available..