Spit Mk1 Boost?

[Seadog]

Originally Posted by TomcatViP

*Fake (or very highly suspicious) !

pls refer to my earlier post if ever needed regarding power increase Vs speed

Originally Posted by IvanK

The 12Lb Boost lines and +16Lbs are computed projections of performance I believe. 12lbs we know was available on the MKI. 16Lbs was not available/used in the MKI. I think the first operational use of +16Lbs was on the Spit MKV with Merlin 45

Here's actual flight data from the Hurricane using 6 and 12lb boost:



Note how closely the performance increases match the previous data for the Spitfire I at 6 and 12lb boost.

I haven't read of the Spitfire I/II using 16lb in combat, but they must have run the Merlin III at 16lb boost to certify it for the Sea Hurricane, and those tests are just as easy to do in a Spitfire with a Merlin III.