Originally posted by Kurfürst
Maximum speed was the same at either 1.8 or 1.98ata, ie. the power would remain the same at rated alt because of the supercharger limiting the altitude of extra boost below. With 1.98ata, only the perfromance below 6000-7500m was improved.
Yep, of course, below the FTH...but I remembered that AH G-10 topped below that alt...probably remembered wrong...but it still doesn't explain the deck speed. I'll try to check this tomorrow...too late now.
EDIT/Ahh..checked Whels' OTD speed post anyway...just 366mph...so nothing in the FM probably changes.../EDIT