See the attached. I think this is the only case where they actually yanked the R-1820's and replaced them with R-1830's. It seems that not only were the R-1820's suffering from basic flaws such as poor lubrication but sitting around had not exactly improved matters. Presumably they had some fairly worn out R-1830 Hawks that could at least supply the cowlings.They changed engines on Hawks a lot though didn't they? Did the Mohawk IVs (Hawk 75 A4?) used in India still have the 1940 engines meant for France?
Sorry. Complete brain fart! Still thinking Mohawks.And then they were replaced by Typhoons, the other RAF fighter bomber that had engines too unreliable to make it across the Channel.
Back to the whirlwind:
It was mentioned earlier that the Whirlwind should have had the XP-50 wing, but at what cost to performance?
From what I've read, the Whirlwind had a favorable roll rate. Putting a wing with a larger sg.ft. would have to have an impact in that regard.
How many Whirlwinds did the RAF send to India?
The Hawk 75s that Britain had, were of limited number as well as having a limited reserve of parts.That they sent Hawk 75s to India indicates that they had no need for them in Britain, and sending anything to India was better than sending nothing
All they had to do was fit 2 stage merlin's and Browning M2's into the Whirlwinds, and those He 113's would have been toast, orA Whirlwind optimized for high altitude would have been an excellent counter to the German He113s encountered over England during the BoB.
I don’t think fitting the larger and heavier Merlins onto the Whirlwind is that easy. Why not just put the Merlin’s two stage supercharger onto the Peregine?All they had to do was fit 2 stage merlin's and Browning M2's into the Whirlwinds,