Spitfire, Hurricane & S-6B speeds

Of course the S-6B was fast. But if you look closely at those three I mentioned they would have been alot faster if they would have paid better attention to the rivets, joints & blunt edges. Look how smooth the Gloster is.
Remember all those aircraft that were polished & waxed, or used flush rivets to gain speed. The Mustangs wing for example.
Of course its 60-70 years later but look what the Air Racers do to gain speed, not just power.
But, its a fantastic collection with beautiful aircraft. Fun to look closely and study such famous aircraft.
Every time I’am in London I drop by.
Did you all see the late mark Spitfire (in pieces) on the wall?
My friends and I found that most interesting. Good idea from the museum.