The Wright Brothers

Wilbur and Orville Wright ran a bicycle shop, neither attended college, neither married, and they lived with their father and sister for most of their lives.

McCullough's portrait emphasises the household: a father who encouraged argument and supplied books, a sister whose role in the enterprise was substantial, and a family culture of self-education that produced two people willing to distrust published authority.

A household that encouraged argument produced two men willing to distrust the published authorities entirely.

Devmark’s reading — not a quotation from the book

Their key insight was about which problem to solve. Others focused on propulsion, assuming that sufficient power would produce flight.

The Wrights concluded that control was the unsolved problem — that a machine which could not be balanced and steered in three axes would kill its operator regardless of its engine — and they worked on control before they worked on power.

Their observation of soaring birds, particularly the way a buzzard recovered balance by twisting its wingtips, which led to wing-warping.

Their decision to learn to fly before attempting powered flight — hundreds of glider flights at Kitty Hawk, accumulating actual piloting experience — distinguished them from competitors who built a machine and then attempted to fly it.

Their most important technical work, and the part McCullough handles best. Discovering that the published lift and drag coefficients everyone was using were wrong, they built their own tunnel and tested over two hundred wing shapes.

The willingness to conclude that the authoritative data was simply incorrect, and to spend a winter generating replacement data themselves, is the decisive moment in the story.

His account of the conditions: the isolation, the sand, the insects, the weather, the repeated seasons of returning to a place with no facilities and no assistance.

The choice was made for wind and soft landing ground, identified through correspondence with the weather bureau. The practical hardship of the location is the part McCullough renders most vividly.

His account of the first powered flights, witnessed by five people, and of the almost complete absence of press interest.

The contrast with Langley's publicly funded, widely covered and unsuccessful attempts weeks earlier is the story's irony, and the years of disbelief that followed — including a press that continued to doubt the claims for years — are a substantial part of the book.

Langley's failure was covered nationally; the Wrights' success was witnessed by five people and largely ignored.

Devmark’s reading — not a quotation from the book

His account of Wilbur's demonstrations in France in 1908, where flights of a quality nobody had seen converted sceptics immediately and made the brothers internationally famous.

The French reaction — that the machine was so far beyond what anyone had achieved that the prior scepticism looked absurd — is the story's turn, and McCullough gives it the space it deserves.

Their sister, a college graduate and teacher, who managed the shop, handled correspondence, travelled to Europe, and was central to the family enterprise.

McCullough gives her more attention than earlier accounts did, though some reviewers have argued still not enough, and her later estrangement from Orville after her marriage is handled briefly.

It ends largely with recognition and does not dwell on the patent litigation that consumed the following decade, on the commercial difficulties, or on Wilbur's early death from typhoid.

This is a choice consistent with McCullough's approach — he is writing an achievement narrative — and readers wanting the harder later history will need another source.

Because it is a well-documented case of outsiders solving a problem that funded institutions could not, by identifying a different problem and by distrusting the published data.

The brothers kept detailed correspondence and notebooks, which McCullough uses extensively, so the reasoning is recoverable rather than inferred.