Original sentence: Accounts of this test, published at the time, and of his later airborne tests, till August 19, 1906, are based on letters he wrote to L'Aérophile, the official journal of the Aéro Club of France.Vuia made his first powered hop on March 18, 1906, in the presence of his mechanic and two close friends
Edited sentence: Vuia claimed to have made his first powered hop on March 18, 1906, in the presence of his mechanic and two close friends, however there is no documentary evidence whatsoever for this claim.Vuia's accounts of this test, published at the time, and of his later airborne tests, till August 19, 1906, are based on letters he wrote to L'Aérophile, the official journal of the Aéro Club of France