5. Leaving to experts to formulate the conclusions arising from the 1914 tests as a whole, in view of all the facts, I repeat in substance, but with amendments, what I have already published in Smithsonian Scientific Series, Vol. 12, 1932, page 227: The flights of the Langley aerodrome at Hammondsport in 1914, having been made long after flying had become a common art, and with changes of the machine indicated by Dr. Wright’s comparison, as given above, did not warrant the statements published by the Smithsonian Institution that these tests proved that the large Langley machine of 1903 was capable of sustained flight carrying a man. 6. If the publication of this paper should clear the way for Dr. Wright to bring back to America the Kitty Hawk machine to which all the world awards first place, it will be a source of profound and enduring gratification to his countrymen everywhere. Should he decide to deposit the plane in the United States National Museum, it would be given the highest place of honor, which is its due. Publication of this statement in the Smithsonian Annual Report presumably should mark the end of the long controversy. FOOTNOTES [1] Note that the two families spelled the same name differently. [2] Owned years afterward by Orville Wright. [3] First published in _Flying_. [4] Orville had arranged the camera on a tripod pointing to where he hoped the machine would be after leaving the track. The negative was developed by Orville after his return to Dayton. [5] The Wrights carried 70 pounds of iron bars in many of the flights of 1904-’05, and could fly with less power than if that load had not been carried. Here is the explanation: The center of gravity of their machine was so far back of the center of pressure on the wings that an air pressure of 70 pounds was required on the top side of the horizontal elevator in front, to make the center of lift and center of gravity coincide. Any downward pressure on the elevator, the brothers reasoned, regardless of whether produced by the air or by a weight, would have to be supported by the main planes. But if the downward pressure is obtained by use of the elevator, then two drags are created, one on the elevator itself, and the other on the wings, in consequence of carrying that extra pressure on the elevator. On the other hand, an equal downward pressure produced by a weight, carried at the same distance as the elevator in front of the wings, would add little to the drag on the elevator, because it would dispose of the necessity for a downward pressure on that part of the machine, and there would then be only the drag on the wings. [6] All italics used in letters quoted in this chapter are supplied. [7] Dienstbach was still a resident of New York in 1943.