Note

This is essentially the same horsepower as U-2. 

28 September 1949
“45,000 horsepower is required to drive a 25 ton plane 1500 miles an hour (MACH 2.27) at 70,000 feet. … The power requirement would jump to 200,000 horsepower at sea level because of greater air resistance.”
U.S. May Push Efforts to Make Atomic Engine
Los Angeles Times (1923-Current File); Sep 28, 1949;
ProQuest Historical Newspapers: Los Angeles Times
pg. 12