Highest altitude in level flight for a helicopter (Sikorsky S-64F/CH-54B)
Thursday, November 4, 1971
- Sikorsky, Stratford, Connecticut, United States of America 
This is a Notable Record milestone.
Description:
On November 4, 1971, James Church piloted a CH-54B in level flight at an altitude of 11,010 meters (36,122 feet). This is the current record and is ratified by the FAI.
