Where is the test where the British do test intercepts of the B17 using P38, P39, P40

[pinsog]

Where is the test where the British do intercepts of the B17 using the P38, P39, P40 Hurricane and Spitfire and then they fly the fighters against each other? I thought it was somewhere in WWII Aircraft Performance but I can't find it.

 

[tomo pauk]

Americans doing the testing, not British?

edit: this, from P-40 section at Mike's site?

 

[pinsog]

That's it. Thank you! That is in the P40 section?

 

[pinsog]

Found where it is now for future reference. Thank you again.