CoD Spit Mk.I 100 oct vs. Real World Spit Mk.Ia +6 lbs

[camber]

Originally Posted by ACE-OF-ACES

Hey guys

Did a comparison of the in-game Spitfire Mk.I at 100 octane to the real world data on a Spitfire Mk.Ia at +6 lbs.

Again, I am no Spitfire expert, so correct me if I am wrong, but isn't the real world +6 lbs. Spitfire using 87 octane? If so, shouldn't the in-game 100 octane (i.e. +12 lbs.) version be faster that the +6 lbs. below the FTH?

Perhaps I am not understanding the question fully, but all Spit Ia's at +6.25psi boost (full throttle) should go the same speed whether they are using 87 or 100 octane. The Spit 1a 100 octane has the ability to use +12psi (using the modified boost cutout red tab) and go faster (provided it is below FTH for +12psi). There is an intermediate altitude range where the supercharger can give less than +12psi but more than +6 psi, above that 87 and 100 octane variants are equal.

I assume your flight tests for the CoD Spit 1a 100 octane were using the +12psi boost? Did the engine blow up during tests?

[ACE-OF-ACES]

Originally Posted by camber

Perhaps I am not understanding the question fully,

Ok, lets see..

Originally Posted by camber

but all Spit Ia's at +6.25psi boost (full throttle) should go the same speed whether they are using 87 or 100 octane.

Agreed.. So far so good..

Originally Posted by camber

The Spit 1a 100 octane has the ability to use +12psi (using the modified boost cutout red tab)

Correct.. So far so good..

Originally Posted by camber

and go faster (provided it is below FTH for +12psi). There is an intermediate altitude range where the supercharger can give less than +12psi but more than +6 psi, above that 87 and 100 octane variants are equal.

Agreed.. That is what I was refering to when I said..

Originally Posted by ACE-OF-ACES

but isn't the real world +6 lbs. Spitfire using 87 octane? If so, shouldn't the in-game 100 octane (i.e. +12 lbs.) version be faster that the +6 lbs. below the FTH?

Originally Posted by camber

I assume your flight tests for the CoD Spit 1a 100 octane were using the +12psi boost?

Yes!

Originally Posted by camber

Did the engine blow up during tests?

Nope!