The Curtiss 8-Cylinder, Air-Cooled, V-Motor, of 30 Horse-Power.
Weight, 125 pounds. Cylinders, 3 1/4 x 3 1/4. Speed, 1,800 R.P.M.
Unknown - the source is Scientific American December 15, 1906
2014-07-05 01:09:53
<a rel="nofollow" class="external free" href="https://archive.org/stream/scientific-american-1906-12-15/scientific-american-v95-n24-1906-12-15#page/n7/mode/2up">https://archive.org/stream/scientific-american-1906-12-15/scientific-american-v95-n24-1906-12-15#page/n7/mode/2up</a>