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There is no trace on the internet of a 40 HP, 120 pounds, 5 cylinders, ignition by compression (of any kind possible) engine working with kerosene, being able to run 1 week continuously and available in 1902, not even in 1910. Whitehead claimed he had used such an engine for his No. 22 plane in an Article that appeared on April 1, 1902 !!
There is no trace on the internet of lots of things we know existed, mainly because nothing appears there without someone taking the trouble to put it there.
e.g. what can you find of the work of Forest?
Equally, there is plenty on the (uncontrolled) internet that is self-serving misrepresentation, passed off as fact, which is nothing of the sort.