Classic British Flight Sim

Sebastian wrote:It seems that noone has any ideas nor further material that would help for proper fuel calculations.

I recently found this website: http://www.eflightmanuals.com/

They offer a printed manual for the BAC 1-11 for something around 51 US dollars. The dollar is quite weak but it`s still quite expensive on my opinion. Has anyone experiences with manuals of that type? Are they helpful at all? Would a manual contain performance charts? Questions over questions...

Getting manuals can be hit and miss: I've bought a couple of manuals expecting performance charts only find they contained checklists for hydraulics, electrics, pressurisation, autopilot operation, etc. I've had more success on eBay as it's possible to contact the seller directly regarding contents of the manuals for sale or auction. It's also work remembering performance figures may not match the sim exactly: I'm actually an X-Planer and know it's a difficult job matching simulated performance to real-life.

Hope this helps,
Brendan.

Do you know any sellers of flight manuals? Where did you get that performance chart of the BAC? Typically, you would not find any british or US-sellers at Ebay Germany. Typing "BAC 1-11" in Ebay gives me a collection of postcards and a plastic model...

Concerning X-Plane and the figures:

Here, you can find one of Microsoft`s strenghts: X-Plane might have the better aerodynamic simulation of forces, but X-Plane`s limitation or difficulty for designers is the fact that all influences and forces are based on dynamic computing. Microsoft makes it easier for designers to recreate flightmodels that fly more or less by the numbers, due to the fact that it has a simple aerodynamic model that relies much more on tables. Altering the tables you can quite exactly let a plane reach the correct speed settings with particular engine settings.

Two things: I am **sure** I read a table of fuel loads somewhere - but it was some time ago, and it may have been another type....

One of the problems as others mention is a lot of specs are 'still air' range - fine if you never use real weather....

Another suggestion for a 'quick fix' is to use the checklist that David has included. This updates your course, drift, weight and expected range in real time.
If you make a few flights and watch this, you do get a good feel for the range and what fuel you need to load - in fact as it is embedded with the aircraft and flight simulator, it is actually of more use than real specs.

A sheet of paper, and just note the weight before liftoff, again at cruising altitude, and you can moniter the consumption over distance.

A bit rough and ready but I do not use planning software of any kind and I have used this little gadget successfully** on the VC10 and BAC 1-11 merely by monitoring specific fuel flow at altitude - I have not went so far as to note the max load, as the descent usually counteracts the ascent in that you gain range back lost in the heavy climb-out.

**By flying a fixed route at MTOW and look at fuel used at journeys' end. This can be calculated most easily by percentage - EG if range was 250 miles for 12% fuel, 48% load will be 1000 miles. Very simplistic but efficient enough for FS use. David's checklist is most useful when using real weather you can spot any discrepancy in expected burn.

Hi Sebastian

eflightmanuals is a good company and they offer a wide selection of manuals in different media (cd, printed or download). I have the AA One-Eleven manual they offer and while it gives a lot of detail, do not buy it expecting 'Performance' data as it doesn't contain any.. not what you're after anyway (I've just looked through the 728 pages!!) I guess the performance data is contained in another publication (often the case with Vickers/BAC). I have 4 other One-Eleven manuals and none contain performance data either! :roll:

I can give you the figures I use for FSNavigator if that will help but I know from experience that FSBuild asks different questions :think:

ATB

DaveB :tab:

It is not necessary for me to have a FSBuild performance profile, I`d like doing the manual paperwork as well...

Charts or any hand-drawn table would be fine.

do not buy it expecting 'Performance' data as it doesn't contain any.. not what you're after anyway (I've just looked through the 728 pages!!)

Thank you for that information!

When I was preparing Nav Logs for Mediterranean Express, (G-AZUK, 476FM), there was a seperate "Fuel Planning Manual" that I used, which contained climb, cruise and descent tables with factors for ISA variation, cruise level, mid-cruise weight and so on. When I did the Nav Logs for the route proving flight for AOC issue, from Luton to Bologna, the fuel burn figures I came up with using this manual differed from the actual sector burn by approx 30lbs.

The manual was soft-backed, spiral bound, around say 100 pages (long time ago, don't quote me on that!), with the standard One-Eleven grey cover.

I'd love to get hold of a copy again.

Nige C

G-AZUK was a generic type 475, one of only nine built so I would think the figures would be very different form other One-Elevens :think:

Garry

Yeah but there was a similar manual for each generic series. And the figures for the 475 were pretty close to the true 500s if you make an allowance for slightly lower weights. Same engine as you know.

N

And of course the wing

Supposedly it had superior performance all round but how much the equated to daily use I have no idea :think:

Garry

Yep.. always surprised me why the 475 didn't sell in numbers. I suppose bums on seats won the day :think: I'm sure DM would love to make one with a large LH cargo door too

ATB

DaveB :tab: