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FSX Acc. Questions. Engine management, aircraft performance etc etc.

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Been quite some time since last time I was here. Been forever since I had time for FSX but anyway:


I have FSX+Acceleration, pretty much all stock except for bits and pieces of panel upgrades. Sim engine is 100% stock and it's staying that way until I can at least afford a better computer, a.k.a I'm stuck with stock for the time being.


Now I have a few questions of all sorts. Been searching the web for a few days now but I haven't had any luck so far, for the most part (1 or 2 guys on youtube excepted).


Any good lead-you-by-the-hand tutorials, what will take me from from know-nada to got-a-pretty-good-idea, on engine management (throttle, propeller, mixture) for propeller planes?


I flew the Beechcraft Baron to try a multi engine after a long time with the Cessna and Beaver. Reading around I see people talk aboout 24" Hg at 8000' with 2400 RPM. How do they manage that?

At 8000' with the mixture leaned to peak, or 50* rich, or poor, I'm lucky to get a pressure much greater than 22.


Speaking of the stock Baron, what is considered good power setting/altitude for range, and for ground speed (if I need to get to that doctor in Copenhagen in a hurry). If you think this is a strange question then hear me out: To get from A to B I need ground speed, not any kind of airspeed. A bushplane almost hovering upwind has good airspeed but you can drive past it without getting a ticket. So, ground speed.


I did take the Baron up to 16,000' where a nice tailwind at 25-35 kts gave me a ground speed of up to 200 kts. If this is poor or good I have no idea but so far I've only been able to get some 170-ish kts at 8000' to 10,000'.  At 17.500' the wind was 45-50 kts but the loss of power meant I only got about 170-180 kts. All of this could very well be my poor engine management though, or it could be what one can expect from the stock Baron. Any input on those figures?


EDITED IN: What's the deal with propeller setting? I thought that as the air gets thinner, you'd be better off with a coarser pitch but so far, the only effect I have noticed is that generally, any lower than full or close to full rpm gives me less speed at all altitudes. Is there a point at say 50% where the game considers the propeller to be feathered?


Airspeeds then: What use does TAS serve in the simulation (not asking about real world although that too would be interesting to know more about). I have my indicator set to IAS and although I am aware of rules of thumbs like "add 2 kts for each 1000', I still don't see what in game information that would give me that I could actually put to any use. Calculating GS makes no sense since I can't tell how much effect the wind has relative to a non-wind standard condition.


Speaking of TAS: Any freeware airspeed gauges for the VC panels (mainly the Cessna 172, DH Beaver and/or Beechcraft Baron) that has a reliable Kollsman window? I am not a real pilot in any way, shape or form so please correct me if I'm wrong but it's my understanding that to set the K. window I find pressure altitude by setting the altimeter to 29.92, read the altitude and match that up with the outside temperature in *C. Is this correct? If so, then not only are the stock K. windows hard to read but they make no sense even from the little I can read (example: At 7000' I read pressure altitude to be some 6700' but the reset button seet it to near 20,000'. I would be very happy to "have to mess with that K. window" just like I have gyro drift, just to keep myself busy on a 4 hour flight.

(Note: I know VC gauges are not generally as straight forward as 2D panel gauges but I did manage to install some gauges in the Cessna, like in the radio stack, a few gauges and some bits and pieces).


TAS brings me to weather: I use the real world weather (15 minutes update) which throws some interesting challenges my way BUT: I understand that any weather report on the radio is only valid at the airport giving them with deviations to be almost guarantied more than a few nm from that airport. Is there any way at all one can get in game weather ahead when enroute and one isn't going to get close to any airport for at least another hour or so? I notice there are several weather stations on the in-game map but 2 issues: To view the map, I'd need to exit the flight (immersion breaker) and it's not clear how the sim uses those weather stations to provide weather reports. Are each of these stations associated with a particular airfield or are they there for no real reason as far as the virtual pilot is concerned?


Anyway, long post but after some time looking around the web and sim-ing, the queue of questions built up.

Edited by Alou2

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Engine settings:

Be aware that the default planes have simplified flight models, so numbers that apply to the real deal or more accurate FSX-representations of an aircraft might not be attainable.


Economy cruise values are usually found in the aircraft manuals or maybe the kneeboard pages for the default aircraft.

You might just find enough info on Baron cruise figures by googling. It is, after all, a widely used aircraft.


You should never redline your props as this can (in real aircraft) lead to shaft or blade failure. Depending on engine and prop, the RPM also determines the level of vibration that you and your passengers are exposed to.


No idea about TAS. I never use it.


The Kohlsman window can be automatically set to the local pressure by pressing "B". The more work-intensive approach is tuning COM1 or COM2 to the latest ATIS station and manually dialing in the provided value.


Do yourself a favor and use FSXWX for real-world weather. It's one of the best engines out there, much more accurate than the default weather and it's free.

If you have a laptop, tablet or good smartphone, you can also use the map provided on the site to check the weather at airports along your route.


More realistic flight planning and tracking can be accomplished with Plan-G (freeware):


Something else to play with once you're aloft:

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Thanks for the reply. I am aware that that the flight model and physics are very much simplified, as very few people has a Tianhe-2 to run it on :smile: . That being said:

As I'm on the stock sim, then real world counterpart is not really relevant (although it would be fun to have a go at something closer to the real deal). What I need to figure out is how does the stock sim work, in how do the planes and helis behave on this sim, no thoughts given on the real world. 


I do use the B key but I can't get rid of the feeling of being ripped out of my immersion when reaching for a cheat key (not as in an actual cheat but more like a hotfix for incompleteness in the sim). So, I would be close to delirious with joy if there was such a thing as a VC airspeed indicator with a working (readable) K. window.


It is true that the manual/kneeboard gives various figures but after looking around, it appears that some people get more out of their aircrafts, or in some cases much less, than the given figures, weather and wrong mixture aside. That leaves me wondering, what are generally considered "good" values for speed and range, from sim experience rather than manuals. Many of you guys have more experience in this sim than I will probably ever have so I was kind of hoping some of you had some findings on your own you would be kind enough to share.


Plan G is installed, unfortunately it keeps crashing, taking the sim down with it so I'd rather not use it linked up to the sim. On its own it's valuable already but I need to fix this crashing business. Also, I'm having trouble getting weather reports to show in Plan G. Only if I have a flight plan will it give me departure and destination weather, but nothing between those two. I need to look at this more as well.


Anyway, thanks again.

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