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View Full Version : Which version of the Spitfire IX do we have in game? IXA or IXB?



Xiolablu3
01-02-2006, 08:53 PM
Hi, I justfound this quote at http://www.spitfireperformance.com/spit9v109g.html

the quotes in the lower half of the page about the Spits.

Alan Deere, Biggin Hill, Wing Commander Flying (March 1943):

The Biggin Hill squadrons were using the Spitfire IXBs (Merlin 66), a mark of
Spitfire markedly superior in performance to the FW 190 below 27,000 ft.
Unlike the Spitfire IXA, with which all other Spitfire IX wings in the Group
were equipped, the IXB's supercharger came in at a lower altitude and the
aircraft attained its best performance at 21,000 ft, or at roughly the same
altitude as the FW 190. At this height it was approximately 30 mph faster, was
better in the climb and vastly more manoeuvrable. As an all-around fighter the
Spitfire IXB was supreme, and undoubtedly the best mark of Spitfire produced,
despite later and more powerful versions.

I had not heard of the IXA and IXB before, does anyone know the full differences? I dont think its related to the wing ('c' armament and 'e' armament) because they gave up using the 'a' amrament (8x.303) on the Spit MKV, didnt they?

Xiolablu3
01-02-2006, 08:53 PM
Hi, I justfound this quote at http://www.spitfireperformance.com/spit9v109g.html

the quotes in the lower half of the page about the Spits.

Alan Deere, Biggin Hill, Wing Commander Flying (March 1943):

The Biggin Hill squadrons were using the Spitfire IXBs (Merlin 66), a mark of
Spitfire markedly superior in performance to the FW 190 below 27,000 ft.
Unlike the Spitfire IXA, with which all other Spitfire IX wings in the Group
were equipped, the IXB's supercharger came in at a lower altitude and the
aircraft attained its best performance at 21,000 ft, or at roughly the same
altitude as the FW 190. At this height it was approximately 30 mph faster, was
better in the climb and vastly more manoeuvrable. As an all-around fighter the
Spitfire IXB was supreme, and undoubtedly the best mark of Spitfire produced,
despite later and more powerful versions.

I had not heard of the IXA and IXB before, does anyone know the full differences? I dont think its related to the wing ('c' armament and 'e' armament) because they gave up using the 'a' amrament (8x.303) on the Spit MKV, didnt they?

p1ngu666
01-02-2006, 08:57 PM
supercharger height, the IXa will be better at high alts, the mark numbers we have ingame are different.

we have merlin 66's in all IX's and VIII's ingame apart from the HF, with a merlin 70 i think.

ixa and ixb where unoffical designations i think, ingame the little letter represents what type of wing is on the spit.

luftluuver
01-02-2006, 09:08 PM
The so called Spit IXa used the higher altitude rated Merlin 61 while the so called Spit IXb used the slightly lower altitude rated Merlin 66.

The Merlin 61 (RM8SM) used a 0.42 prop reduction ratio and the Merlin 66 (RM10SM) used a 0.477 prop reduction ratio.

Xiolablu3
01-02-2006, 09:12 PM
Thx Pingu and Luftluvver http://forums.ubi.com/groupee_common/emoticons/icon_smile.gif , some great pilot accounts on the bottom of that page, I must read 'the big show'.


Btw, a while ago me and a few others were wondering where the 'd' wing of the Spit disappeared too (we knew a,b,c and e but didnt know what d was and I think I may have found out.

I THINK its the 2x40mm cannon which are used on the Hurricane II'd'. If anyone can confirm this please tell.

danjama
01-02-2006, 09:18 PM
The Big Show is a great book