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747classic
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Re: KC-46 Production, Testing And Delivery

Mon May 01, 2017 2:13 pm

The first Fully Functional Production KC-46A, (second LRIP aircraft) made her first flight at April 29 2017.

See : http://painefield.blogspot.nl/2017/04/n ... s-air.html
Operating a twin over the ocean, you're always one engine failure from a total emergency.
 
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KarelXWB
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Re: KC-46 Production, Testing And Delivery

Thu May 04, 2017 9:09 am

A 6th test aircraft has joined the flight test program:

http://www.aviation.ca/2017050122124/ne ... st-program

Boeing [NYSE: BA] now has six aircraft in its KC-46 tanker test program, expanding its ability to complete ground and flight-test activities as it progresses
toward first deliveries to the U.S. Air Force.

The newest KC-46 aerial refueling aircraft, the second low-rate initial production plane, completed its first flight April 29. Its test activities will help ensure the KC-46 can safely operate through electromagnetic fields produced by radars, radio towers and other systems.
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petera380
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Re: KC-46 Production, Testing And Delivery

Thu May 04, 2017 11:53 am

KarelXWB wrote:
A 6th test aircraft has joined the flight test program:

http://www.aviation.ca/2017050122124/ne ... st-program

Boeing [NYSE: BA] now has six aircraft in its KC-46 tanker test program, expanding its ability to complete ground and flight-test activities as it progresses
toward first deliveries to the U.S. Air Force.

The newest KC-46 aerial refueling aircraft, the second low-rate initial production plane, completed its first flight April 29. Its test activities will help ensure the KC-46 can safely operate through electromagnetic fields produced by radars, radio towers and other systems.


Anyone know which aircraft joined the test fleet?
 
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747classic
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Re: KC-46 Production, Testing And Delivery

Thu May 04, 2017 2:59 pm

petera380 wrote:
Anyone know which aircraft joined the test fleet?


L/N 1092 C/N 41983 B767-2C KC-46A N884BA (VH006) UNITED STATES AIR FORCE (second LRIP aircraft) joined the test fleet, as stated here :

747classic wrote:
The first Fully Functional Production KC-46A, (second LRIP aircraft) made her first flight at April 29 2017. See : http://painefield.blogspot.nl/2017/04/n ... s-air.html
Operating a twin over the ocean, you're always one engine failure from a total emergency.
 
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par13del
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Re: KC-46 Production, Testing And Delivery

Fri May 05, 2017 1:54 pm

If those are WARPS they look way out at the extreme ends of the wings, is there a capability or requirement to refuel 3 a/c at once - 2 Navy 1 Air Force?
 
LMP737
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Re: KC-46 Production, Testing And Delivery

Sat May 06, 2017 5:05 pm

par13del wrote:
If those are WARPS they look way out at the extreme ends of the wings, is there a capability or requirement to refuel 3 a/c at once - 2 Navy 1 Air Force?


Requirement, probably not. Capability, maybe. What it comes down to is a separation issue in that regard.
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LMP737
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Re: KC-46 Production, Testing And Delivery

Sat May 06, 2017 5:08 pm

bikerthai wrote:

The note about Boeing and the supplier not realizing how much documentation needed for the WARP could probably be blamed on lost of experience internal to Boeing (or the right mix of experience people did not get on to the tanker Commercial operation - this mix is important as you need both commercial (FAA) and military (WARP) experience working closely to cover all aspect of the cert), lack of experience from the WARP designer and manufacturer with respect to the FAA cert process. (They probably never had to go through this type of cert before as all their previous cert was through a military modification process that only requires a military cert).

That is my hypothesis.

bt


Boeing in it's infinite wisdom closed their Wichita operation which had lots of tanker experience. That knowledge base was instead spread to teh four winds.
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Stitch
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Re: KC-46 Production, Testing And Delivery

Sat May 06, 2017 5:44 pm

LMP737 wrote:
Boeing in it's infinite wisdom closed their Wichita operation which had lots of tanker experience. That knowledge base was instead spread to teh four winds.


Yes, Boeing's original plan was to build them as green commercial airliners and send them to Wichita for conversion (as I believe was done with the KC-767 family), but (rightly, IMO) came to the conclusion that commercial 767-2C sales would probably be zero so by doing the military-related work on the FAL itself would cut down on conversion time and cost. The learning curve has been rough, but over time, it should be the better choice as doing it on the FAL will be easier than tearing the plane apart again to fit everything in.
 
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kc135topboom
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Re: KC-46 Production, Testing And Delivery

Sat May 06, 2017 10:44 pm

So is there 6 KC-46/B-767-2C aircraft now flying with the test flight program?

Does anyone know what the USAF tail number will be for the first KC-46A delivered to the Air Force will be, and when that will happen?

Sorry, I have not been keeping up lately. There is life outside of airliners.net
 
LMP737
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Re: KC-46 Production, Testing And Delivery

Sun May 07, 2017 5:02 pm

kc135topboom wrote:
So is there 6 KC-46/B-767-2C aircraft now flying with the test flight program?

Does anyone know what the USAF tail number will be for the first KC-46A delivered to the Air Force will be, and when that will happen?

Sorry, I have not been keeping up lately. There is life outside of airliners.net


Six airplanes total now in the test program. Not all are flying at the present moment though. As for deliveries your guess is as good as mine.
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jarheadk5
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Re: KC-46 Production, Testing And Delivery

Fri May 12, 2017 10:58 pm

par13del wrote:
If those are WARPS they look way out at the extreme ends of the wings, is there a capability or requirement to refuel 3 a/c at once - 2 Navy 1 Air Force?

Not gonna happen.

In the KC-10, simultaneous boom and WARP receivers are prohibited, due to inadequate receiver separation distance. Different airspeed requirements and emergency separation (breakaway) response times between boom AR and drogue AR are also a factor. Simultaneous centerline drogue and WARP receivers are also prohibited in the KC-10, also due to inadequate receiver separation distance.
-Boom stowed, leaving position.
 
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KarelXWB
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Re: KC-46 Production, Testing And Delivery

Sat May 13, 2017 12:31 pm

Boeing shares a peek inside the EMC:

Image

Image

https://twitter.com/jonostrower
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747classic
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Re: KC-46 Production, Testing And Delivery

Mon May 15, 2017 8:39 am

KarelXWB wrote:
Boeing shares a peek inside the EMC


EMC lay-out explanation and details of shown aircraft at above pictures can be found here : http://painefield.blogspot.nl/2017/05/m ... c-46a.html
Operating a twin over the ocean, you're always one engine failure from a total emergency.
 
DanCatchpole
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Re: KC-46 Production, Testing And Delivery

Wed May 17, 2017 11:10 pm

par13del wrote:
If those are WARPS they look way out at the extreme ends of the wings, is there a capability or requirement to refuel 3 a/c at once - 2 Navy 1 Air Force?


I asked when I toured the program earlier this month (along with Ostrower and others). The answer is maybe for foreign sales of the KC-46.

Three planes at once was not a USAF requirement, b/c there would not be enough wingtip clearance. However, I was told that if a foreign nation wants it, Boeing can provide that capability. I believe the KC-767s delivered to Italy can fuel three planes at once.

Here is the article I wrote: http://www.heraldnet.com/business/testi ... roduction/

- Dan Catchpole, Everett Herald
 
deputydoright
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Re: KC-46 Production, Testing And Delivery

Mon May 22, 2017 3:56 am

Refueling 2 V-22 Osprey concurrently is a real game changer. I don't think there is large need to refuel 3 aircraft at the same time given the hazards involved.
 
deputydoright
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Re: KC-46 Production, Testing And Delivery

Mon May 22, 2017 4:03 am

What would one say if suddenly, all of the previous testing were invalidated due to the test aircraft not being representative of the production model? Would this be newsworthy?
 
WIederling
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Re: KC-46 Production, Testing And Delivery

Mon May 22, 2017 8:41 am

deputydoright wrote:
What would one say if suddenly, all of the previous testing were invalidated due to the test aircraft not being representative of the production model? Would this be newsworthy?


What kind of change do you have in mind?
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7BOEING7
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Re: KC-46 Production, Testing And Delivery

Mon May 22, 2017 3:07 pm

deputydoright wrote:
What would one say if suddenly, all of the previous testing were invalidated due to the test aircraft not being representative of the production model? Would this be newsworthy?


Are you talking about the FAA or Air Force testing? Are you talking about "all" of the testing or just a particular system?

As far as the FAA is concerned most of their testing (on any airplane) is accomplished prior to the airplane being "representative of a production model". When doing certification work their concern is that the specific system/area they are testing and that any related systems/areas are in final production configuration not the whole airplane.

Can't speak to the Air Force.
 
LMP737
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Re: KC-46 Production, Testing And Delivery

Tue May 23, 2017 5:08 pm

deputydoright wrote:
Refueling 2 V-22 Osprey concurrently is a real game changer. I don't think there is large need to refuel 3 aircraft at the same time given the hazards involved.


I think there would be a clearance issue with two V-22 refueling from the WARPS.
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AeroTyke
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Re: KC-46 Production, Testing And Delivery

Thu May 25, 2017 9:28 pm

The tankers seem to be suffering from fuel temperature issues. I monitor the ground comms at BFI and tanker #1 has had issues for the past 3 days having to hold on the ramp and taxiways for up to 30 mins sometimes for the temp to drop to allow a take off. Today it escalated to the point where Fire Rescue was called to douse the wings with water in an attempt to bring the temperature down. Seemed to work, but by the time he'd taxied to the threshold for take off the temp had risen again. Sat there for 20 mins hoping it would drop but no luck so they've had to cancel the flight and return to the stall.

Anyone know why this is a problem on the tankers and seemingly not on other types? It's hardly blisteringly hot at Seattle today.
 
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7BOEING7
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Re: KC-46 Production, Testing And Delivery

Thu May 25, 2017 10:10 pm

AeroTyke wrote:
The tankers seem to be suffering from fuel temperature issues. I monitor the ground comms at BFI and tanker #1 has had issues for the past 3 days having to hold on the ramp and taxiways for up to 30 mins sometimes for the temp to drop to allow a take off. Today it escalated to the point where Fire Rescue was called to douse the wings with water in an attempt to bring the temperature down. Seemed to work, but by the time he'd taxied to the threshold for take off the temp had risen again. Sat there for 20 mins hoping it would drop but no luck so they've had to cancel the flight and return to the stall.

Anyone know why this is a problem on the tankers and seemingly not on other types? It's hardly blisteringly hot at Seattle today.


Might be doing "hot fuel" testing, so they're starting with already heated fuel.
 
jarheadk5
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Re: KC-46 Production, Testing And Delivery

Thu May 25, 2017 11:29 pm

LMP737 wrote:
deputydoright wrote:
Refueling 2 V-22 Osprey concurrently is a real game changer.


I think there would be a clearance issue with two V-22 refueling from the WARPS.

Clearance for the V-22 to HAR from the KC-10 happened after I had left the jet, so I'm not 100% certain... but every picture or video I've seen of KC-10 - V-22 operations has been from the centerline drogue.

V-22 "wingspan" is ~84ft at the outboard tips of the proprotors. For the sake of easy math, we'll call the distance from the AR probe to the proprotor tips 40ft.
KC-46 wingspan is ~158ft. The WARPs are inboard of the wingtips; my brief search for a measurement was unsuccessful. Again, for easy math, we'll call the distance between WARPs 140ft.
Using these simplified (and, admittedly, borderline fictional) numbers, simultaneous V-22s on the KC-46 WARPs gives 60ft lateral separation. I no longer remember what formula USAF uses to determine "safe" receiver separation distance during WARP/MPRS refueling, but I doubt it results in a distance less than one receiver "wingspan" being considered acceptable receiver separation.
-Boom stowed, leaving position.

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