Tom Swift and His Air Scout: Uncle Sam's Mastery of the Sky

Tom Swift and His Air Scout: Tom thinks that a silent airplane motor would be beneficial in advancing the war effort. During the development of the power plant, Tom runs afoul of the Universal Flying Machine Company, a competitor for government contracts. Bribery, intimidation, espionage, threats, theft and kidnapping are all used against Tom to try and sabotage his efforts (Tom Swift Unofficial Home Page).