Replicas of the first airplanes.

[Jamesel]

It depends on your definitions.

The Americans WERE the 1st to fly across the Atlantic in an airplane. Landing 2 weeks before Alcock & Brown, U.S. Navy NC-4 crossed the Atlantic from New York to London, they just didn‘t do it nonstop! Not so much of an „Advance in Aviation“ as an exercise in Logistics, with nearly unlimited support.

From Wikipedia:
Between 8 and 31 May 1919, the Curtiss seaplane NC-4 made a crossing of the Atlantic flying from the U.S. to Newfoundland, then to the Azores, and on to mainland Portugal and finally the United Kingdom. The whole journey took 23 days, with six stops along the way. A trail of 53 "station ships" across the Atlantic gave the aircraft points to navigate by.

[David MacRay]

Another place to find replicas worth doing is in Those Magnificent Men and their Flying Machines. There’s far too much in that movie to get into it here but if you haven’t seen it, change that this weekend.

I was browsing clips. Tough to avoid that song.

One that looked interesting was the one with the wings that look a bit like Saturn’s rings. I’m guessing it’s not terribly efficient.

[anofly]

Yep depends on your definitions and what question was asked....agreed, but 90 percent plus will answer lindberg without listening to the question.....