Context: The MoD has been criticised for an ongoing fiasco, having spent £240m on eight Chinook HC3 helicopters which only started to enter service in 2010, years after they were ordered in 1995 and delivered in 2001. A National Audit Office report reveals that the helicopters have been stored in air conditioned hangars in Britain since their 2001[why?] delivery, while troops in Afghanistan have been forced to rely on helicopters which are flying with safety faults. By the time the Chinooks are airworthy, the total cost of the project could be as much as £500m.

Question: How much did the MoD spend on Chinook helicopters?
Answer: £240m

Question: When were the helicopters ordered?
Answer: 1995

Question: Which office reported that the helicopters were being stored, rather than used?
Answer: National Audit Office

Question: In what year were the helicopters brought into service?
Answer: 2010

Question: What is the estimated total cost of the Chinook helicopter project?
Answer: £500m

Question: In 1995 what did the National Audit Office order?
Answer: Unanswerable

Question: When were the helicopters with safety faults ordered by the Audit Office?
Answer: Unanswerable

Question: Since what year have the helicopters with safety faults been stored?
Answer: Unanswerable

Question: How much did the helicopters with safety faults cost when ordered in 2010?
Answer: Unanswerable

Question: When were the helicopters flown with safety faults in Afghanistan put in service?
Answer: Unanswerable