Military Aircraft: Helicopters Mr. Hancock To ask the Secretary of State for Defence how many pilots qualified to fly Puma helicopters have re-qualified to fly (a) Merlin and (b) Chinook helicopters in 2009 to date. Bill Rammell In 2009 to date, three qualified Puma pilots re-qualified to fly Chinook helicopters. In the same period, no qualified Puma pilots have re-qualified to fly Merlin helicopters.