Search found 2595 matches

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by RJMAZ
Sat Sep 18, 2021 3:38 am
Forum: Military Aviation & Space Flight
Topic: New defence pact AUUKUS
Replies: 419
Views: 41731

Re: New defence pact AUUKUS

If I understand, you're saying that by 2028 or so the US cannot build more submarines that we're building now, even if someone else pays for them and uses their own docks for assembly? Why do you think this is true? The US definitely can. At the current production rate of one Virginia submarine eve...

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by RJMAZ
Fri Sep 17, 2021 11:28 pm
Forum: Military Aviation & Space Flight
Topic: New defence pact AUUKUS
Replies: 419
Views: 41731

Re: New defence pact AUUKUS

The US and UK don't have any capacity to build subs for anyone other than themselves. Tempest won't be shelved, doing that would make the UK far too sub servant to US political whims. This is completely false. The last two Astute subs are under construction. Devonshire Dock Hall was expanded in 201...

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by RJMAZ
Fri Sep 17, 2021 12:35 pm
Forum: Military Aviation & Space Flight
Topic: New defence pact AUUKUS
Replies: 419
Views: 41731

Re: New defence pact AUUKUS

Australia should not build the subs in Australia. To build a Virginia or Astute class sub in Australia the price would be instantly doubled. Australia does not have the facilities, the experience or industry to make high end submarines. The workers on the Collins class are retired. Australia should ...

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by RJMAZ
Thu Sep 16, 2021 11:18 am
Forum: Military Aviation & Space Flight
Topic: New defence pact AUUKUS
Replies: 419
Views: 41731

Re: New defence pact AUUKUS

It has been reported that Australia is getting Tomahawks, so unless they can be torpedo tube launched, then you can expect these subs will built to accommodate vertical launch of them. Tomahawks can be torpedo tube launched. That is how the Astute class subs launch their Tomahawks. Vertical launch ...

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by RJMAZ
Thu Sep 16, 2021 9:56 am
Forum: Military Aviation & Space Flight
Topic: New defence pact AUUKUS
Replies: 419
Views: 41731

Re: New defence pact AUUKUS

I'm expecting a shortened Virginia class submarine. The Virginia is skinnier than the Astute class so it will result in a lower overall size. The Block V Virginia class subs have been significantly extended in length as they have the additional VPM module which contains four large diameter tubes whi...

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by RJMAZ
Wed Sep 08, 2021 5:02 am
Forum: Civil Aviation
Topic: Boeing - Can Lockheed Martin Please Save Us?
Replies: 53
Views: 9914

Re: Boeing - Can Lockheed Martin Please Save Us?

Interesting.. in military circles it is Boeing saving everyone from a Lockheed Martin monopoly. Lockheed has guaranteed profit, and government revenue for decades. Boeing has to go in low with fixed priced contracts and absorb all the risk to win contracts. In commercial aviation Boeing can easily b...

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by RJMAZ
Wed Sep 08, 2021 12:13 am
Forum: Military Aviation & Space Flight
Topic: Updated: Switzerland deciding to buy F-35A fighter jets
Replies: 367
Views: 61229

Re: Updated: Switzerland deciding to buy F-35A fighter jets

Sure, how you calculate operational costs can produce different figures but it cannot account for a figure double the expected figure, can it? Around $8 million per annum instead of $4.1 million per annum is a seriously bad figure. That is the authors numbers and interpretation. Notice he includes ...

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by RJMAZ
Fri Sep 03, 2021 8:34 am
Forum: Travel, Polls & Preferences
Topic: What will airlines do when Boeing replaces the 737?
Replies: 36
Views: 8155

Re: Boeing approaching decision on narrowbody design.

Boeing is definitely the best when it comes to picking which way the market is going. The 787 Vs A380 is the perfect example of this. I expect that Boeing knows that low and even zero emission designs will become critical. They will also know that market fragmentation will continue. I can't see how ...

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by RJMAZ
Sat Aug 28, 2021 1:18 pm
Forum: Civil Aviation
Topic: Air New Zealand Considering Recent 787 Order to be used for 77W Replacement
Replies: 122
Views: 26995

Re: Air New Zealand Considering Recent 787 Order to be used for 77W Replacement

Just came across this. I know NZ was going to look at an order for either the 350 or 777X to replace the 300ERs but this seems to have gone under the radar somehow because i've not seen a discussion on it. I was saying the 787 was going to replace the 777W for the last 2 years . It is good to see t...

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by RJMAZ
Tue Aug 24, 2021 9:21 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 140
Views: 29731

Re: Boeing MQ-25 News and Discussion Thread

The MQ-25 frame is designed for maximum fuel capacity and to have the lowest fuel burn while staying inside the carrier weight limit. How do you know this? I didn't think Boeing had released any weights (gross, empty, etc) for the MQ-25. How could you even dispute what I said? The alternative would...

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by RJMAZ
Tue Aug 24, 2021 6:13 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 140
Views: 29731

Re: Boeing MQ-25 News and Discussion Thread

You betting that the MQ-25 is the optimal platform to host those other systems? Why clutter the carrier with additional MQ-25s when you could have a separate unmanned platform half the size and twice as specialised. The MQ-25 frame is designed for maximum fuel capacity and to have the lowest fuel b...

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by RJMAZ
Mon Aug 23, 2021 4:15 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 140
Views: 29731

Re: Boeing MQ-25 News and Discussion Thread

That's interesting! If a MQ-25 can carry 4x the fuel using half the engine power ... thats interesting. Aircraft design is all about compromise. Being able to pull high G force adds weight and reduces fuel capacity. Being able to fly supersonic requires small swept wings that are not as efficient a...

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by RJMAZ
Sun Aug 22, 2021 11:57 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 140
Views: 29731

Re: Boeing MQ-25 News and Discussion Thread

Looking at some MQ-25 budget documents .... Unit cost is about $150M per. Not counting development, nor support, just production. You could easily buy an actual F/A 18 for much less! The MQ-is a tanker and it can offload far more fuel than the Super Hornet. The Navy's goal for the aircraft is to be...

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by RJMAZ
Fri Aug 13, 2021 1:49 am
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

The Swiss competition is the first competition where all prices were made public. This allows the cost argument to be settled once and for all. The F-35 is cheaper to buy and cheaper to operate compared to Super Hornet, Eurofighter and Rafale. If someone says the F-35 still costs too much that is li...

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by RJMAZ
Thu Aug 12, 2021 12:16 am
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

RJMAZ, the mods want us to provide sources, not opinions, preferences posted as facts. https://www.google.com/amp/s/www.statista.com/chart/amp/23618/operating-cost-per-aircraft/ Thanks for the laugh. You just posted 2018 operating costs :lol: You just did exactly what I said in my post. I repeat. Y...

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by RJMAZ
Wed Aug 11, 2021 1:21 pm
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

The big question to me (the 800 lb gorilla in the room :wideeyed: ) is: "The USAF is running=away from the F35 due to the exorbitant cost of keeping a stealthy fleet in the air".. (My observation). This is absolutely false. The F-35 is cheaper per hour than nearly all 4th gen aircraft bas...

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by RJMAZ
Tue Aug 10, 2021 12:33 pm
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2898

Re: Best Ground Attack Aircraft before 1977

The A-7 was a good aircraft no question, however Jaguar had much better performance at low level, where the fighting would be done, made it less vulnerable to fighter attack I disagree. The A-7D completely dominates the Jaguar in every way in 1977. At sea level and without afterburners we are looki...

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by RJMAZ
Tue Aug 10, 2021 10:53 am
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2898

Re: Best Ground Attack Aircraft before 1977

The A-7D and A-7E hands down. The best avionics. Guided weapons with the Walleye. Sidewinder self defense missiles. M61 Vulcan cannon. Excellent endurance. Fairly high speed. By comparison the Jaguar had no sidewinder capability in 1977 and it had two thirds of the range/endurance of the A-7D. By co...

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by RJMAZ
Mon Aug 09, 2021 11:05 pm
Forum: Military Aviation & Space Flight
Topic: Bell reveals high speed tilt rotor concept
Replies: 12
Views: 2245

Re: Bell reveals high speed tilt rotor concept

I wonder if electric motors and batteries could evolve enough in that time, for the props to be driven by electric motors? The electric motors would be used for relatively short periods of time, and the other engines could provide power to the batteries. Definitely. Electric motors can effectively ...

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by RJMAZ
Fri Aug 06, 2021 1:21 pm
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

Athletics is a good comparison. The US jet engines are running the 400 meter sprint in world record time of 43 seconds. The Russian engines are running the exact same speed but only over 100m which works out to be 10.75 seconds. Disabled people in the paralympics can run that 100 meter time.

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by RJMAZ
Fri Aug 06, 2021 3:12 am
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

That's worse than 30+ years of technological stagnancy, its 30+ years of technological reversal. How is that even possible? Also, its not like the AL-41F1 was a sham- its performance was verified during MiG-25 testing. Same manufacturer for both engines too. Doesn't add up. Because the thrust figur...

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by RJMAZ
Thu Aug 05, 2021 11:07 am
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

Two smaller engines have some advantages in term of redundancy, stealth profile, internal weapons bay.. Strongly disagree. The twin engines makes packaging very hard for internal weapons bays. If you shrink the F-22 design down to 80% for two smaller engines there is nowhere to place the internal w...

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by RJMAZ
Wed Aug 04, 2021 10:13 pm
Forum: Military Aviation & Space Flight
Topic: Updated: Switzerland deciding to buy F-35A fighter jets
Replies: 367
Views: 61229

Re: Switzerland Restarting Fighter Competition

All this is irrelevant. If the aircraft is too expensive to operate, that it spends more time on the ground than in the air, it is of no use to us. So you agree with my statement that the Swiss should buy PC-21 as it is cheapest? They can afford to have PC-21 in the air 24 hours a day which accordi...

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by RJMAZ
Mon Aug 02, 2021 9:28 am
Forum: Military Aviation & Space Flight
Topic: Can a new, replacement ISS be built without the space shuttle ?
Replies: 49
Views: 5346

Re: Can a new, replacement ISS be built without the space shuttle ?

I doubt there will be an international space station ever again. We will definitely have a private SpaceX space station. It will probably have a hotel with starships launching guests from multiple cities each day. A few thousand dollars for half a day including a space walk. A special marriage propo...

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by RJMAZ
Sat Jul 31, 2021 4:14 am
Forum: Military Aviation & Space Flight
Topic: Tempest Fighter Jet Programme News and Discussion Thread
Replies: 265
Views: 89673

Re: Tempest Fighter Jet Programme News and Discussion Thread

What would you like UK (and France) to do? Work together to build complimentary products not competing products. Splitting up a small market with competing products means everyone loses. Duplication of research and development costs and economy of scales reduces. With any aviation project Europe si...

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by RJMAZ
Thu Jul 29, 2021 12:42 am
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

The fully digital model is something used for a long time CAD software has been around for 20 years. That is not what we are talking about. The best description is a cooking analogy. Let's say a restaurant needs to make 10 pots of soup. If you only have one pot it doesn't matter how many chefs you ...

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by RJMAZ
Wed Jul 28, 2021 4:53 am
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

Bikerthai summer it up perfectly. Now all companies are moving towards this digital development but some companies are much further ahead and have invested in their own software. A small technology lead effectively allows for massive cost reduction in development cost and time. This allows a company...

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by RJMAZ
Tue Jul 27, 2021 11:52 pm
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

What makes you so sure of that? Looking at the last 2 or 3 decades, it’s hard to point to anything the US military/industrial complex did that ended up low cost or on time. Especially for anything flying. All the programs you think of were started and developed when digital design wasn't around. We...

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by RJMAZ
Sun Jul 25, 2021 5:54 am
Forum: Military Aviation & Space Flight
Topic: Jeff Bezos and brother to fly on first Blue Origin flight
Replies: 82
Views: 6835

Re: Jeff Bezos and brother to fly on first Blue Origin flight

I didn't realise how small Blue Origins New Shepard rocket is. A single turbofan on the 777 puts out more thrust than this cute little rocket. Hitler's V-2 rocket put out more thrust and flew much faster lol: By comparison the SpaceX rocket first stage has more than 150 times as much thrust. Even th...

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by RJMAZ
Sat Jul 24, 2021 10:02 am
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

I would love to read Ozair's analysis on Checkmate.... and have enjoyed reading the above posts - RJMAZ: as always, total respect to you! Take care, Bunumuring Unfortunately Ozair hasn't posted since the admins kept deleting posts and banning people for posts without references. Sometimes you don't...

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by RJMAZ
Thu Jul 22, 2021 11:33 pm
Forum: Military Aviation & Space Flight
Topic: Updated: Switzerland deciding to buy F-35A fighter jets
Replies: 367
Views: 61229

Re: Switzerland Restarting Fighter Competition

I read the other day Saab agreed the aircraft wasn't good enough and why it is bigger and heavier but just as average. I'd love a source for this, because that sounds wildly out of character for an on the record Saab statement. That would be author interpretation. It definitely is bigger and heavie...

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by RJMAZ
Wed Jul 21, 2021 4:42 am
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

India will spend the development life cycle of this aircraft trying to the get the LCA to final spec instead of buying this aircraft. Or it will repeat the SU-57 story. The aircraft will fly in a few years as a highly unstable and experimental prototype. It will have an engine failure and a crash. ...

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by RJMAZ
Tue Jul 20, 2021 2:24 am
Forum: Military Aviation & Space Flight
Topic: Updated: Switzerland deciding to buy F-35A fighter jets
Replies: 367
Views: 61229

Re: Switzerland Restarting Fighter Competition

The evaluation versus Gripen E by Norway was a joke, wasn't it? Conclusion was that Gripen E would cost more than F-35. The F-35 is even cheaper than a single engine Cessna when you take into account air to air capability per dollar. No joke. A thousand Cessna aircraft will be less capable than a s...

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by RJMAZ
Tue Jul 20, 2021 2:13 am
Forum: Military Aviation & Space Flight
Topic: Updated: Switzerland deciding to buy F-35A fighter jets
Replies: 367
Views: 61229

Re: Switzerland Restarting Fighter Competition

The operating cost of the F-35 is very high for Norway. A simple air policing mission of Iceland, cost 4 times as much as it would with F-16's. The operating cost of the F-16 is very high for Norway, a simple air policing mission cost 4 times as it would with a PC-21. A single F-35 could patrol mor...

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by RJMAZ
Sat Jul 17, 2021 3:36 am
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

1. MiG-29 is still too costly and heavy, as it is still a twinjet. Aircraft weight now plays a much smaller part to the purchase and operating costs of a fighter jet. Aluminium does not cost much to purchase and maintain. An engine designed for very low maintenance such as the GE F404 would allow a...

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by RJMAZ
Sat Jul 17, 2021 1:40 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 22148

Re: Another Boeing-Airbus tanker war is coming soon, KC-Y

Decent piece by Loren Thompson, though I think he misses the part about how many gallons the MRTT can actually offload at range vs. the KC-46 entirely. There is already enough blows to Airbus in that piece. Mentioning that the larger A330 offloads less fuel at range than the smaller KC-46 might con...

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by RJMAZ
Fri Jul 16, 2021 5:24 am
Forum: Military Aviation & Space Flight
Topic: Updated: Switzerland deciding to buy F-35A fighter jets
Replies: 367
Views: 61229

Re: Updated: Switzerland deciding to buy F-35A fighter jets

Like I said maybe the Swiss are on to something and don't plan to fly the aircraft the way the US do? The aussies are making it work. That would definitely be the case. Most people do no realise that an aircraft can be maintained to different standards. They think the aircraft either is maintained ...

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by RJMAZ
Fri Jul 16, 2021 2:23 am
Forum: Military Aviation & Space Flight
Topic: New Russian Fighter Jet
Replies: 120
Views: 15436

Re: New Russian Fighter Jet

The problem I see is that Russian engines still have very poor reliability and a single engine design needs a very reliable engine. The US engines can in my opinion produce approximately 30% more thrust compared to a Russian engine with similar size , weight and durability. The Russian engines are w...

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by RJMAZ
Sun Jul 11, 2021 5:42 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 22148

Re: Another Boeing-Airbus tanker war is coming soon, KC-Y

Do we have any concrete information on what they are looking for from KC-Y? Do they want more fuel capacity at take-off? Do they want more at range? Do they want more cubic feet of volume for cargo? Do they want a higher MTOW? Do they want more unrefueled range? There is no set size but it all come...

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by RJMAZ
Sat Jul 10, 2021 11:58 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 22148

Re: Another Boeing-Airbus tanker war is coming soon, KC-Y

What would prevent Airbus to add fuel tanks in the belly if what is required is as much fuel in the air as possible ? Any A330-800 MRTT offered by Airbus would have one or two extra fuel tanks added. It is highly unlikely Airbus would offer the original older A330-200 MRTT for the new contest. The ...

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by RJMAZ
Sat Jul 10, 2021 6:34 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 22148

Re: Another Boeing-Airbus tanker war is coming soon, KC-Y

They would have had to start 20 years ago. People just do not realize how much tech from the E-7 help the development of the P-8A. Not only that, many of the folks who worked the E-7 brought over their experience. Maybe it was one of the contributing factor in the P-8s success. I disagree. The reas...

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by RJMAZ
Sat Jul 10, 2021 5:14 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 22148

Re: Another Boeing-Airbus tanker war is coming soon, KC-Y

The Max 7 BBJ carries 10,464 gal in it's tanks plus has a payload of a bit over 30,000lb. That 50% more than a KC-130. That's still under 40t of fuel. The MAX7 with the MTOW of the MAX10 at 89t MTOW might get close to 50t of fuel. I have always thought Airbus should make a military model using the ...

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by RJMAZ
Sat Jul 10, 2021 12:49 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 22148

Re: Another Boeing-Airbus tanker war is coming soon, KC-Y

It would also obviate the need for a big crew on a converted passenger aircraft to be the flying gas tank. Two pilots and a boom operator is not a big crew. Just throwing this out there - how about a tanker version of a MAX 7 BBJ ? KC-Y is for the big tanker coming up to replace the KC-10. The orig...

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by RJMAZ
Fri Jul 09, 2021 10:37 pm
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 22148

Re: Another Boeing-Airbus tanker war is coming soon, KC-Y

The KC-Y order is definitely the last chance for the A330NEO. Removing the AirasiaX and Iran air orders from A330NEO order book the backlog is down to around 150 aircraft. At the 2018 production rate of 50 aircraft per year the A330NEO would end production in 2024. Airbus will have no choice but to ...

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by RJMAZ
Fri Jul 09, 2021 4:56 am
Forum: Military Aviation & Space Flight
Topic: Northrop Grumman B-21 Raider Production And Delivery Thread
Replies: 148
Views: 53421

Re: Northrop Grumman B-21 Raider Production And Delivery Thread

The B-21 will not be bombing from FL-400. It will be down to around FL-200, and maybe as low as 15,000', just as the B-2s were during their 'shock and aw' missions over Bagdad. Eventually it will be a low level bomber, just like the B-1 and B-52 are and the FB-111 was. I'm fairly certain the B-21 w...

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by RJMAZ
Fri Jul 09, 2021 3:02 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 22148

Re: Another Boeing-Airbus tanker war is coming soon, KC-Y

The KC46 not being very capable there doesn't mean it's less important. The A330MRTT being more capable as a freighter has made it far less capable as a tanker. That is very important for the USAF. The A330MRTT Being 50% heavier in empty weight yet provided less fuel offload at long range is proof ...

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by RJMAZ
Thu Jul 08, 2021 6:34 am
Forum: Military Aviation & Space Flight
Topic: Updated: Switzerland deciding to buy F-35A fighter jets
Replies: 367
Views: 61229

Re: Updated: Switzerland deciding to buy F-35A fighter jets

Not if this one is being referred to; https://en.wikipedia.org/wiki/Operation_Opera That's the one. That style of mission would be bread and butter for the F-35. No other aircraft in the world could do it alone without significantly higher risk. Even the B-2 bomber wouldn't do that mission alone wi...

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by RJMAZ
Thu Jul 08, 2021 3:26 am
Forum: Military Aviation & Space Flight
Topic: Updated: Switzerland deciding to buy F-35A fighter jets
Replies: 367
Views: 61229

Re: Updated: Switzerland deciding to buy F-35A fighter jets

https://www.gao.gov/assets/gao-21-439.pdf Seems like the GAO isn’t quite as optimistic about promised future cost reductions for the F-35 program as the Swiss government. Yes the F-35 might not hit the original crazy low hourly flight cost but that is irrelevant here as it is far cheaper than any m...

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by RJMAZ
Thu Jul 08, 2021 1:14 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 22148

Re: Another Boeing-Airbus tanker war is coming soon, KC-Y

Even with the KC-46's higher MTOW compared to the 762. Please just stop. That's the problem. 9t of extra MTOW for the KC-46 with no increase in OEW allows for the entire shortfall of 27t to 35t to be made up. The KC-46 are using the engines from the 767-400ER which are 15 years newer than the engin...

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