TerraN_EmpirE
Tyrant King
I trust you are referring to this story?So what does these tankers offer than the current KC-units don't? Range and play load better?
Age. The KC135 currently in service was built form 1954-1965 that makes them fifty years old. next is payload. 200,000 lb for a KC135 KC46 offers 207,672 lb not much of a upgrade but a upgrade. Next options KC135 is a tanker only she has no secondary roles KC46 is a tanker and a transport she can carry in addition to her flight crew : seating for up to 114 people, 18 463L pallets, or 58 patients (24 litters, 34 ambulatory). Easier to use. KC135 requites the Boom operator to move to a remote station in the rear of the belly of the Craft.On Aerial Tankers:
Posted on InsideDefense.com: June 2, 2014
The Air Force projects Boeing could be liable for more than $1 billion in cost overruns on the KC-46A aerial refueling tanker program, about $250 million higher than previously estimated, according to an April report to Congress.
The revised overage stems from a risk assessment last year led by Maj. Gen. John Thompson, the KC-46 program manager, in collaboration with Boeing. The assessment projected the cost to execute the "fixed price incentive firm" engineering and manufacturing development contract for the new aircraft would most likely be $5.864 billion, up from a 2012 estimate of $5.615 million.
"This estimate incorporated an assessment of contract cost and schedule performance, as well as cost risks from the May 2013 Integrated Risk Assessment conducted between the KC-46 Division and Boeing," states the 53-page KC-46A Selected Acquisition Report, dated December 2013 and sent to Congress in April.
In February 2011, the Air Force awarded Boeing a $3.6 billion contract to begin the development of four KC-46A tanker prototypes. The contract set a $4.3 billion target price and included a provision stating that the government would pay 60 percent of any cost overruns up to a ceiling price of $4.831 billion, with Boeing to pay the rest. The Air Force's new $5.8 billion estimate would require Boeing to absorb more than $1 billion of cost overruns above the contract ceiling price.
Boeing, which is developing the new aerial-refueling tanker based on the company's 767 commercial airliner, estimates the cost to complete the contract will be $5.1 billion, a prediction the company advanced in 2011 and is sticking to, according to the Pentagon report.
The Air Force, however, for a third consecutive year is projecting that the total cost would be significantly higher. In 2011, the Air Force predicted the development contract would exceed the cost ceiling by $453 million; in 2012, the estimate grew to exceed $784 million. The new $1 billion estimate is twice the sum the Air Force originally tabulated.
At press time, a Boeing representative could not be reached for comment on the figures in the Pentagon report.
In 2011, Boeing was selected over EADS North America -- winner of the 2008 aerial refueling tanker competition that was later undone by federal auditors -- to build a 179-aircraft fleet to replace the aging Air Force's KC-135 tanker fleet.
After losing to Boeing, EADS North America executives accused Boeing of winning with an "extremely low-ball offer," a charge seconded by Sen. John McCain (R-AZ), who was frustrated that the government faced $600 million in cost overruns in the development contract (DefenseAlert, July 14, 2011).
The Air Force also projects possible schedule delays for two planned milestone events, according to the report to Congress. A "schedule risk assessment" conducted by the KC-46A program office, Boeing and the Defense Contract Management Agency in May 2013 projected a "2.6-month" delay for the first flight this summer and a nearly three-month delay of Boeing's March 30, 2017, goal for "required assets available" -- which are not contractually due until August 24, 2017. The analysis determined that Boeing had a "better than 90 percent chance" of meeting the August deadline, according to the report.
[video=youtube_share;wXoKx_AeOjo]http://youtu.be/wXoKx_AeOjo[/video]
KC46 will use a Remote system allowing the Boom operator to join the rest of the Crew.
KC135 has to be retrofit to use probe and Drogue Well KC46 will come with it from the start.
KC135 has a Range of 1303 Nmi (2,419 km)with 150,000 lb (68,039 kg) of transfer fuel KC46 will have 6,385 nmi (12,200 km)
Last edited: