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The Wrights didn't "tweak engines", they hired a machinist to build their own engine from scratch, being unable to find an existing one w...

The Wrights didn't "tweak engines", they hired a machinist to build their own engine from scratch, being unable to find an existing one with the requisite power to weight ratio. The Wrights also had a propeller design that was 90% efficient, compared with the flat design (used on the Langley machine) that was 50% efficient. This was also crucial, because it had the effect of nearly halving the required power. Power, weight, and efficiency are all critical. There's no way to tell if Whitehead's design would have flown from a replica based on a photo, because those 3 factors cannot be derived from a photo.

Posted by WalterBright on Apr 17, 2015, 6:29 PM

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The Wrights didn't "tweak engines", they hired a machinist to build their own engine from scratch, being unable to find an existing one w...

WalterBrightApr 17, 2015, 6:29 PM

The Wrights didn't "tweak engines", they hired a machinist to build their own engine from scratch, being unable to find an existing one with the requisite power to weight ratio. The Wrights also had a propeller design that was 90% efficient, compared with the flat design (used on the Langley machine) that was 50% efficient. This was also crucial, because it had the effect of nearly halving the required power. Power, weight, and efficiency are all critical. There's no way to tell if Whitehead's design would have flown from a replica based on a photo, because those 3 factors cannot be derived from a photo.

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