Does anyone have a set of power setting charts for a 707 320B or 320B Adv with JT3D engines?  Or any aircraft with JT3D engines?  I would like to look at a JT3D engine manual as well if I can find one.  Don't bother pointing me to anything on the web (unless it's very complete) as I think I have seen everything that's out there.

I have done some work on a new flight model, but I don't have enough data to do a proper job.  I have bought a couple of 707 manuals, but they never seem to have complete thrust charts in them.  All I have really are takeoff and rated thrust tables and a long range cruise table.  I need a full set of cruise thrust charts ideally showing both EPR and N1.

I have made a new EPR gauge, but with some limitations due to the way Captain Sim has coded the gauges.  Essentially, I have had to put a second needle on the gauge (you can't get rid of the existing needles) and I can only show EPR from a single engine on all four gauges.  Anything that goes on the engine panel gets repeated across all four gauges.  And I would ideally have more data to ensure the lower end of EPR readings are accurate.

Thanks for the reply.  I already had his documents and in fact I have been able to combine data from some of his DC8 power charts and some 707 Pan Am charts fuel burn charts I have to put together a Mach .82 cruise power setting chart for a 707 with JT3D-3 engines.

The EPR readouts are wildly off what they should be for any given N1 value.  And even using N1 values, if you have power setting charts that show figures for N1 in addition to EPR, you will not achieve the desired cruise speed for a specified N1 setting.   It's not satisfying for me as a simulation, so I am creating a new flight and engine models, the same as I did for the 727.

Gambler, be aware, they actually fly and while you won't be able to use the charted values one by one, you have to take care when actually operating the bird, so we are far away from the full throttle and pitch up technique.  

So if you were looking for some flyable Excel tables, you are "warned" now, but in my eyes (owning some of those "close to the book" products), the splendid qualities of CS aircraft lie somewhere else, currently, while their atmosphere often is unmatched on the market. At least, that's why I use them with pleasure and looking forward to any new release.


Michael, I just wanted to jump on one sentence from your post and I'm not intending any harm, but a repeated statement.
Quote:

You will see this behavior on all CS planes so far as they are bound to the native FSX engine models (maybe enhanced, but with the known downsides there).
So you don't get real but FSX values all over the place. E. g., your engines cool down in seconds and come up in some more with a "boom".
EPR therefore is FSX based and, sorry, useless to work on.

CS stays close to the SDK in development it seems, which we can't blame them for of course. It's the standard set by MS, so one can even see this as a pro. It works fine but has its downsides on realism.

It would take a special engine model development to match any rw values, so you can only use what you have there. This would be a "thrust machine" of some kind, not behaving like anything in those charts (EPR or N1-wise) but producing thrust of course and eating up fuel. N1 has some use on those engines though, while EPR is way off.
I'm jumping on that item since this is a repeated "finding", so your adorable work may focus on other things to achieve more realism and I'm really happy about such forum people by the way.

One also has to see that CS has a very open policy to any modifications on their planes while some other devs kick you out if you even think about it.  
I'm stating this looking at some threads around, offering such things, including yours.

Well, as I understand CS products are not aimed at hardcore flight-simmers market like some others. That is why some user tweaking is necessary to bring them to that level.

So maybe I should be more interested in older CS products because they apparently got such necessary improvements. What do you thing about 727 ver. 1.4? Does this 727 work OK now? Did it get reality improvements from the community? Where can I find them?