Fair enough I missed #205; here's #205
Quote:
Originally Posted by TomcatViP
Wrong. See my post above and data pasted bellow. You need to take into account the s/c !
MerlinXX !
ALT(ft) SHP BHP (diff correspond to the power used to drive the supercharger)
15K 1267 1048
20K 1298 1073
20K+ 1362 1126
25K 1162 960
30K 945 778
35K 700 568
More over the subsequent Merlin (the XX) developed to give more power to the Hurri (what the RaF felt was more a need) was limited to 9lb at 20Kft but 12lb in T.O/Emergency
I think that you are confounding higher grade and NOS and don't forget all the cooling prob with the Merlin in the RAFFC's fighters
Quitely again as I hve said it does not fit any logics.
~S!
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This is a post about the Merlin XX, which is a completely different engine from the III, using a two-speed supercharger which drew more power than the single-stage single speed unit of the III:
otherwise there is
No evidence provided that R-R routinely tested its engines without superchargers, No documentation, No mention of a History of Rolls-Royce.