Abbuzze

03-08-2006, 06:54 AM

Here is a page out of a NACA Spitfire test (L334).

Very interesting read, but also very long 51 pages with charts. It gives a very nice overview about the advantages and the shortcomings of this very good fighter.

The tested Version was a Spitfire V with metal ailerons.

Max. 40lb could be applied to the stick by the pilot in a roll, so maybe the higher values are calculated or some aid was used.

The roll rate is given in RAD. 1RAD is 57.295 degree. So you can calculate deg/sec

No explanation is needed for the line with "Maximum deflection". To read this chart took a force- 30lb for example, take the IAS speed, this time 225mph, and the 1.0 rad line is right there, so the Spitfire rolled with 57deg/sec to the right.

If no line with 0.8 - 1.0 - 1.2 rad are directly hitting, you have to interpolate this values.

So maximum rollrate to the right with 40lb at 300mph IAS is around 63deg/sec. (maybe 2 more or less)

So if someone wants to compare the real world Spit V to our one - Lets go! I have no time to do it. http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

Enjoy it.

http://mitglied.lycos.de/p123/bilder/rollrate_spitv.jpg

Complete test, download it, if you want to read the complete 51pages.

http://mitglied.lycos.de/luftwaffe1/aircraft/raf/spit_flying.pdf

Very interesting read, but also very long 51 pages with charts. It gives a very nice overview about the advantages and the shortcomings of this very good fighter.

The tested Version was a Spitfire V with metal ailerons.

Max. 40lb could be applied to the stick by the pilot in a roll, so maybe the higher values are calculated or some aid was used.

The roll rate is given in RAD. 1RAD is 57.295 degree. So you can calculate deg/sec

No explanation is needed for the line with "Maximum deflection". To read this chart took a force- 30lb for example, take the IAS speed, this time 225mph, and the 1.0 rad line is right there, so the Spitfire rolled with 57deg/sec to the right.

If no line with 0.8 - 1.0 - 1.2 rad are directly hitting, you have to interpolate this values.

So maximum rollrate to the right with 40lb at 300mph IAS is around 63deg/sec. (maybe 2 more or less)

So if someone wants to compare the real world Spit V to our one - Lets go! I have no time to do it. http://forums.ubi.com/groupee_common/emoticons/icon_wink.gif

Enjoy it.

http://mitglied.lycos.de/p123/bilder/rollrate_spitv.jpg

Complete test, download it, if you want to read the complete 51pages.

http://mitglied.lycos.de/luftwaffe1/aircraft/raf/spit_flying.pdf