Need real world Spit and Hurri data

[ACE-OF-ACES]

Just finished a top speed per altitude test..

As before.. this is a quicky prelim test!

Where, for now, I am focusing more the the post processing code (matlab) that the flight itslef

Note in the following graphs I applied some filtering (data reduction) on the raw CoD data

Such that I only show/graph the MAX speed vale per altitude

Note on the same graph I ploted the real world TAS data too so you can visually compare the ingame results to the real world results

[Seadog]

Originally Posted by ACE-OF-ACES

Just finished a top speed per altitude test..

As before.. this is a quicky prelim test!

Where, for now, I am focusing more the the post processing code (matlab) that the flight itslef

Note in the following graphs I applied some filtering (data reduction) on the raw CoD data

Such that I only show/graph the MAX speed vale per altitude

Note on the same graph I ploted the real world TAS data too so you can visually compare the ingame results to the real world results

You might also want to look at the RAE chart:http://www.wwiiaircraftperformance.o...I-raechart.jpg
again, and the Hurricane data card.

[ACE-OF-ACES]

Originally Posted by Seadog

You might also want to look at the RAE chart:http://www.wwiiaircraftperformance.o...I-raechart.jpg
again, and the Hurricane data card.

Thanks Seadog!

Just to be crystal clear.. this data is for the 87oct?

And of all the graphs listed in the graph, which one should I be using to compare to?

On that note, do you (anyone) have any 100oct test data for the Hurri?

Thanks in advance!

[Seadog]

Originally Posted by ACE-OF-ACES

Thanks Seadog!

Just to be crystal clear.. this data is for the 87oct?

And of all the graphs listed in the graph, which one should I be using to compare to?

On that note, do you (anyone) have any 100oct test data for the Hurri?

Thanks in advance!

The RAE chart:
http://www.wwiiaircraftperformance.o...I-raechart.jpg
is for a 100 octane fueled Hurricane, but the boost is limited to 6.25lb, IOW, no tests were done at the 5min combat rating, but the revised PEC figures resulted in more accurate speeds from prior tests. This test gives data points at 5000 and 10000ft for various levels of boost up to 12lb:

http://www.wwiiaircraftperformance.o...-l1717-cal.jpg

The ability of the Merlin III to give more than 6.25lb boost above 10,000ft is shown in the Spitfire I RAE chart:
http://www.spitfireperformance.com/s...-rae-12lbs.jpg
, since it also uses 12lb boost, so using these charts should enable you to reconstruct Hurricane performance using 12lb boost, at least in level flight.
as was done here:http://www.wwiiaircraftperformance.o...peed-HRuch.png

and here for climb rate at 12lb boost:
http://www.wwiiaircraftperformance.o...limb-HRuch.png

[ACE-OF-ACES]

Thanks seadog!

Just so I know, what does PEC stand for? wrt the revised PEC values? Do you know what was done to 'revise' them? This is not a UK way of saying the data was converted to standard day.. right?

[Seadog]

Originally Posted by ACE-OF-ACES

Thanks seadog!

Just so I know, what does PEC stand for? wrt the revised PEC values? Do you know what was done to 'revise' them? This is not a UK way of saying the data was converted to standard day.. right?

PEC = Position Error Correction, or the errors caused by the pitot not being perfectly accurate.

[ACE-OF-ACES]

Hey guys

I just re-ran the Hurricane Mk.I top speed test..

Note I am experimenting with some of the C# data collection values right now, just so you know there are basically two types.. 3D world Internal (Z) and Indicated (I). Where the 3D world internal values are just that, internal calculations used by the game, and the Indicated values are the values used to drive the cockpit gauges.. As in what we can see as we fly in real time.

There are a lot unresolved and/or not fully understood issues with both.. Right now just trying to relate the two to see if I can make sense out of the two types. As for issues.. the Indicated stuff seems.. well.. pretty flaky. Which is something Oleg said way back in the IL-2 days, that being the cockpit gauge values are just generated to give the virtual pilot something to look at, translated I got the impression from Olegs e-mail that he was saying the Indicated cockpit values are not that accurate, as in not what is really going on. And my initial impression of CoD's Indicated values, it seems to be true for CoD too. For example, the indicated ROC has a constant offset of around 60fpm.. Even while sitting on the runway it indicates around 60fpm in the C# log data. Where as the 3D world value reads zero like you would expect! But there are issues with the 3D values too, for example the IAS and TAS values.. The IAS does not appear to be IAS at all, where as TAS, so far, seems to be close to what you would expect. I need to calc TAS from the Indicated and compare it to the 3D world values to see just how far off they are. Anyway, just wanted to share that with you all! In the mean time keep in mind the graphs are suspect at the moment, so, don't get happy or sad just yet!

[ACE-OF-ACES]

Originally Posted by Seadog

PEC = Position Error Correction, or the errors caused by the pitot not being perfectly accurate.

Ah ok thanks!!