This. +1. The wind speed is not uniform across the disc area of turbines. You need wind speed at several points in height. Although not sure what OP is really trying to determine here just avg power v wind speed but fit looks poor at lower end.

Quality number of applications, that done on purpose or just the universe working out splendidly?

How did the tiling approach work out or you didn’t try it?

I had something similar in trying to identify spin on a baseball in successive frames.

Pretty sure there hundreds of millions of police interactions in the US every year.

200,000,000 interactions / 650,000 officers = 462 interactions per officer / 365 days = .8 interactions per day; seems plausible.

Ha ha. Sounds good.

Yeah it’s strange because the F-135 from Pratt seems like the beginning of the ideal engine here.

Doesn’t change the fact the plane was profitable. If some company goes bust and I buy their assets at a discount and make a working business model- it’s still profitable.

In this case how realistic was it to think a commercial plane designed and built like a multi national fighter was going to come in on cost and on budget? Has that ever happened in a large scale govt aviation project?

The point was the graph concludes it’s not profitable because of fuel consumption which is not true.

Not sure what RR is doing they have dropped out of a lot of high profile projects recently. Some of which clearly have economic value. They must be streamlining operations or something internally / gearing up for other markets.

They didn’t pay development costs but one could largely say that for many airframes including the A380. It’s airframe dev costs were subsidized as well.

In Concordes case it also didn’t get sold to as many customers who initially wanted it or even throughout its life. Not sure if it was British or French govt who limited its sales.

I’m not sure why Boom was ever going that route honestly with Rolls. I would think they could use F-35 derivative engines potentially.

The chart may be accurate but the conclusion is not and should be removed. Concorde was profitable for both BA and Air France. It was more profitable and in higher demand once retirement was announced. Virgin tried to buy them but for whatever reason was denied.

The real issue was it was getting old and during financial hard times around 2000 and post 9/11 Airbus effectively stopped making replacement parts.

What was needed were new airframes and a successor but that never materialized for a host of reasons in the aviation industry. But clearly there is a market for a new version, especially in the pacific operations zone.