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Stitch
Posts: 24631
Joined: Wed Jul 06, 2005 4:26 am

Re: KC-46 Production, Testing And Delivery

Sun Oct 15, 2017 2:48 am

par13del wrote:
One of the thing always mentioned is the fact that the USAF has a large dedicated tanker fleet and a large cargo fleet, so the need for a multi-role tanker is minimal compared to other countries, ok, I get that. Now without having to review all the old tanker threads, the reason for the a/c to have almost full FAA civilian certification is.......?


The original contract required Boeing to maximize the amount of the tanker design that is FAA certified. To that end, the underlying frame (767-2C) has an Amended Type Certificate for the 767-200 as a "provisional freighter". A Supplemental Type Certificate then applies to the KC-46A with the refueling equipment and military avionics installed.
 
INFINITI329
Posts: 2043
Joined: Mon Jul 02, 2012 12:53 am

Re: KC-46 Production, Testing And Delivery

Sun Oct 15, 2017 6:50 am

par13del wrote:
One of the thing always mentioned is the fact that the USAF has a large dedicated tanker fleet and a large cargo fleet, so the need for a multi-role tanker is minimal compared to other countries, ok, I get that. Now without having to review all the old tanker threads, the reason for the a/c to have almost full FAA civilian certification is.......?


Maybe to be able to operate in civilian airspace and from civilian airports I would assume. Not 100% sure though.
 
INFINITI329
Posts: 2043
Joined: Mon Jul 02, 2012 12:53 am

Re: KC-46 Production, Testing And Delivery

Sun Oct 15, 2017 6:52 pm

Does anyone know if the KC-46 will have powered rollers on the main deck?
 
LMP737
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Joined: Wed May 08, 2002 4:06 pm

Re: KC-46 Production, Testing And Delivery

Sun Oct 15, 2017 11:08 pm

INFINITI329 wrote:
Does anyone know if the KC-46 will have powered rollers on the main deck?


No it will not.
Never take financial advice from co-workers.
 
NBGSkyGod
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Re: KC-46 Production, Testing And Delivery

Mon Oct 16, 2017 10:52 am

INFINITI329 wrote:
Does anyone know if the KC-46 will have powered rollers on the main deck?

Yes, they are called Airmen.
Pilots are idiots, who at any given moment will attempt to kill themselves or others.
 
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bikerthai
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Re: KC-46 Production, Testing And Delivery

Mon Oct 16, 2017 1:30 pm

par13del wrote:
Now without having to review all the old tanker threads, the reason for the a/c to have almost full FAA civilian certification is.......?


. . . Cost. The specification for FAA certification is well established within the aviation industry all the way from the prime down to the lowest level sub contractor. Keeping the basic air frame under FAA certification keep you supplier base without having extensive paperwork needed to cert these suppliers to any Military requirement. Often time the certification requirements for the FAA and Military are the same, just the specific design requirements are different, so paying an FAA person to do the work would be cheaper than paying a military subcontractor to do the same work. Even the Military have going away from mil-spec where they can, converting many of the former MIL-Spec to NASM spec, so the actual maintenance of the specification is maintained on the less expensive civilian side.

There is still requirement for the Military side of the certification to handle stuff that the FAA would not touch . . . aerial refueling, weapons system and other highly sensitive hardware.

bt
Intelligent seeks knowledge. Enlightened seeks wisdom.
 
jarheadk5
Posts: 256
Joined: Thu Nov 03, 2005 2:45 pm

Re: KC-46 Production, Testing And Delivery

Thu Oct 19, 2017 2:48 pm

AIUI, the theory behind maintaining FAA certification on a commercial-derivative military aircraft is cost savings. Engineering work is expensive, so staying as close as possible to an already-certificated design minimizes the amount of clean-sheet engineering to be done, and should save money.
As we are seeing in this program, though, it doesn't always work out that way.

*** EDIT: Didn't notice there was another page of (better) replies. Sorry about that...
-Boom stowed, leaving position.
 
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KarelXWB
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Re: KC-46 Production, Testing And Delivery

Wed Oct 25, 2017 12:51 pm

The KC-46 program took another $329 million charge in Q3 2017:

https://www.reuters.com/article/us-boei ... SKBN1CU1LO
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