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

[ACE-OF-ACES]

Originally Posted by Seadog

I think the increased load in the 6750lb test was done by using ballast to simulate the effects of more armour, greater weight from self sealing tanks, internal airframe changes to minimize fire risk and/or full fuel/oil tanks; rather than a variation in ammo load. Also planned advances in avionics such as IFF transponders.

Ah ok.. So in essance than I should be using the lighter version data, in that these proposed changes were not in affect at the time of BoB and thus the Hurries in the game, right?

[IvanK]

Good looking chart AOA. Nice job.

A suggestion it might be A bit easier on the eye if the data points for different lines were a different symbol.

[ACE-OF-ACES]

Originally Posted by IvanK

Good looking chart AOA. Nice job.

Thanks!

Originally Posted by IvanK

A suggestion it might be A bit easier on the eye if the data points for different lines were a different symbol.

Ok, I can do that!

Thanks for the feedback! S!

[Seadog]

Originally Posted by ACE-OF-ACES

Ah ok.. So in essance than I should be using the lighter version data, in that these proposed changes were not in affect at the time of BoB and thus the Hurries in the game, right?

I think that production Hurricanes from something like June-July 1940 would have had all these changes incorporated into them, so both "light" and "heavy" Hurricanes would have participated in the BofB.

[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.