Hurri/Spit, both have the Merlin, so why is the hurri so much slower?

[Soviet Ace]

Just like the Merlin with it's different versions, the DB601-605 had their own versions as well. That's why there's different speeds etc. for certain 109s, that were powered by either a 601 or 605. I mean a early 109 powered by a 601, and a later 109 powered with the 601 as well, will more than likely have different speeds because they did this and that to increase the power of the 601 or 605.

[Robotic Pope]

Hurricane also has a lot more drag. The wings being a lot thicker than the spitfire's.

[HauptmannMolders]

I have to assume this also comes down to aeordynamics, simply have a look at how thick the wings are on the Hurri, they are positively massive! Also (and this is splitting hairs) wouldn't the fact that the Spitfire is aluminium vs the fabric of the Hurri cause less friction with the air? Lots of reasons I guess...

[David603]

Originally Posted by HauptmannMolders

I have to assume this also comes down to aeordynamics, simply have a look at how thick the wings are on the Hurri, they are positively massive! Also (and this is splitting hairs) wouldn't the fact that the Spitfire is aluminium vs the fabric of the Hurri cause less friction with the air? Lots of reasons I guess...

Well, the fabric used in the construction of the Hurricane could be a factor, but only the rear fusalage, tail assembly and control surfaces of the Hurricane are fabric covered, with the wings and centre fuselage/cowling being all metal, so I would think the difference would be minimal.

[Vulcan607]

Also i believe the thick leading edge of the spitfires wing (designed because of the possibility of a water cooled engine) creates a better air flow over the wing as it tapers.