Search found 1889 matches

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by kitplane01
Sat Sep 18, 2021 1:51 am
Forum: Military Aviation & Space Flight
Topic: New defence pact AUUKUS
Replies: 132
Views: 4245

Re: New defence pact AUUKUS

Let's sum it up ... - US cannot build enough boats for themselves and don't have any boats to spare so cannot use existing USN production or boats 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 us...

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by kitplane01
Sat Sep 18, 2021 1:48 am
Forum: Military Aviation & Space Flight
Topic: New defence pact AUUKUS
Replies: 132
Views: 4245

Re: New defence pact AUUKUS

Lets talk about the deal they had with the french: "The total cost of the program, which includes the production of 12 submarines, has also risen from $40 billion to nearly $70 billion. At the same time, the French government has continued to insist that its own effort to acquire six nuclear-p...

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by kitplane01
Fri Sep 17, 2021 1:15 am
Forum: Military Aviation & Space Flight
Topic: New defence pact AUUKUS
Replies: 132
Views: 4245

Re: New defence pact AUUKUS

Lets talk about the deal they had with the french: "The total cost of the program, which includes the production of 12 submarines, has also risen from $40 billion to nearly $70 billion. At the same time, the French government has continued to insist that its own effort to acquire six nuclear-po...

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by kitplane01
Tue Sep 14, 2021 3:49 am
Forum: Military Aviation & Space Flight
Topic: IAF buys 56 C-295 transport aircraft
Replies: 22
Views: 2824

Re: IAF buys 56 C-7295 transport aircraft

In that regard it might be beneficial for Western countries to support the development of higher tech manufacturing there. Wonder if there is a stat on how many 5 axis NC machine or large autoclave India have imported over the last 10 years. That would be a good indicator of the India higher tech m...

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by kitplane01
Mon Sep 13, 2021 1:09 am
Forum: Technical/Operations
Topic: Engine placement for 6 engine airplanes
Replies: 4
Views: 868

Re: Engine placement for 6 engine airplanes

The 6 individual pods give you more safety from contagious failures at the expense of more wetted surface. Engines in side-by-side pods have experienced contagious failures on Il-62s: https://en.wikipedia.org/wiki/LOT_Polish_Airlines_Flight_7 https://en.wikipedia.org/wiki/LOT_Polish_Airlines_Flight...

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by kitplane01
Sun Sep 12, 2021 2:23 am
Forum: Technical/Operations
Topic: Engine placement for 6 engine airplanes
Replies: 4
Views: 868

Engine placement for 6 engine airplanes

In all of history there have been 5 jet aircraft with six jet engines (not counting VTOL aircraft). The B-47 had six engines, each wing with a double-pod and a single pod. The An-225 has six engines, each wing with three single pods. The Martin XB-48 also had six jets, each wing with three pods. The...

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by kitplane01
Fri Sep 10, 2021 6:39 pm
Forum: Military Aviation & Space Flight
Topic: IAF buys 56 C-295 transport aircraft
Replies: 22
Views: 2824

Re: IAF buys 56 C-295 transport aircraft

Airbus starting up a new line with TATA is no doubt a clear signal to HAL Signal have been sending for a while. TATA and it's subsidiary TAML have been working with Airbus and Boeing for a while now. This is just the next step in building confidence toward a future in-country built fighter (whether...

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by kitplane01
Fri Sep 10, 2021 7:03 am
Forum: Technical/Operations
Topic: Modern Turbofan Engine Efficiency
Replies: 40
Views: 10078

Re: Modern Turbofan Engine Efficiency

Thermodynamics is mentioned early in a design. New engines that rely on variable cycle technology are detailed thermodynamics analysis. However practical aspects often result in severe compromises to the thermodynamics. For example, decades ago I was part if a large engine design team for an engine...

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by kitplane01
Thu Sep 09, 2021 3:57 am
Forum: Technical/Operations
Topic: If a commercial pilot lost all nav instruments, would that be a MAYDAY or PAN situation or neither?
Replies: 21
Views: 1846

Re: If a commercial pilot lost all nav instruments, would that be a MAYDAY or PAN situation or neither?

I really think you all are missing the big picture. If many redundant nav systems all fail, the problem is that you have some systemic avionics failure going on. If that many independent nav systems all fail, I'd really really worry about the rest of my avionics and flight instruments and even fligh...

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by kitplane01
Thu Sep 09, 2021 3:52 am
Forum: Technical/Operations
Topic: Modern Turbofan Engine Efficiency
Replies: 40
Views: 10078

Re: Modern Turbofan Engine Efficiency

One other thing I want to emphasize. When you talk with engineers they rarely if ever mention thermodynamics. Honestly I do not think most understand it that well, and they tend to get lost in the micro engineering details. Bottom line: The greater the temperature variance between the hot chamber a...

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by kitplane01
Tue Aug 24, 2021 9:21 pm
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 126
Views: 24746

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 kitplane01
Tue Aug 24, 2021 7:55 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 126
Views: 24746

Re: Boeing MQ-25 News and Discussion Thread

When is comes to NAVAIR there is no ROI requiring payback. The prod rate is low because the USN only needs 70 of them. At five per carrier air wing you don't need many and will be into the 2030s before all the carriers have been modified with the control stations. No doubt they could build 70 of th...

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by kitplane01
Tue Aug 24, 2021 7:54 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 126
Views: 24746

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 kitplane01
Tue Aug 24, 2021 3:21 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 126
Views: 24746

Re: Boeing MQ-25 News and Discussion Thread

Even if an MQ-25 costs more than an F/A-18 to buy, if it's cheaper to operate not only on a sortie basis, but on a fuel offload basis, then you get a positive ROI that may pay back pretty quickly. The low production rate may also be due to... 1. They want to iterate quickly and iron out things as t...

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by kitplane01
Tue Aug 24, 2021 3:19 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 126
Views: 24746

Re: Boeing MQ-25 News and Discussion Thread

Once the MQ-25's are operational it is quite likely there will be other variants for coms, sensors, radars etc. Don't need stealth if the radar is on, but that would allow the carrier's radar to be off, or other patrol aircraft not needing their's on. You betting that the MQ-25 is the optimal platf...

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by kitplane01
Mon Aug 23, 2021 3:12 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 126
Views: 24746

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 kitplane01
Mon Aug 23, 2021 3:09 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 126
Views: 24746

Re: Boeing MQ-25 News and Discussion Thread

Looking at some MQ-25 budget documents .... Unit cost is about $150M per. Can you provide the quantity ordered? Some context would be nice. Lot 1 pricing will always be more expensive as they have yet to come down the learning curve. First and second batch of full rate production would be more repr...

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by kitplane01
Mon Aug 23, 2021 3:04 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 126
Views: 24746

Re: Boeing MQ-25 News and Discussion Thread

OK, looking at the projected FRP frames, if I read it right, the cost is a little under 100 mil per frame fly away at 7 per year and a little over 100 mil per frame a 3 per year. This is rather a rather low rate. Even the P-8 is running at over 12 per year at the height of its production. If you ge...

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by kitplane01
Sun Aug 22, 2021 6:32 am
Forum: Civil Aviation
Topic: Caravelle - engine start and taxi
Replies: 34
Views: 6948

Re: Caravelle - engine start and taxi

People are keeping these aircraft airworthy as a historical item. Can't they be flown as Experimental aircraft therefore not needing such certification? Wasn't the Ju-52 in Switzerland performing that role? The TWA Super Constellation that would fly-in to Oshkosh EAA. The Ford Tri-Motor that did th...

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by kitplane01
Sun Aug 22, 2021 6:21 am
Forum: Military Aviation & Space Flight
Topic: Boeing MQ-25 News and Discussion Thread
Replies: 126
Views: 24746

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! In addition, there are ~1.5B in "other support, which is not "initial spares" nor "RDT&E"...

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by kitplane01
Fri Aug 20, 2021 8:47 pm
Forum: Civil Aviation
Topic: Caravelle - engine start and taxi
Replies: 34
Views: 6948

Re: Caravelle - engine start and taxi

LX321 wrote:
The Cravelle is just beautiful. Thanks for sharing. If i remember correctly Airbus revoked its operating certificate so a Caravelle will never fly again.



How can they do that? Also does one need an operating cert if you’re it carrying passengers?

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by kitplane01
Thu Aug 12, 2021 6:07 am
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2586

Re: Best Ground Attack Aircraft before 1977

Valid answer! Not really. If the question was "Which airplane had the most success" or "which airplane developed the foundations" then lots of WWII airplanes would be interesting answers. But the actual question was "which is the best as of 1977" and it's not any desig...

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by kitplane01
Wed Aug 11, 2021 9:17 pm
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2586

Re: Best Ground Attack Aircraft before 1977

the Junkers Ju 87 was pretty effective Valid answer! Not really. If the question was "Which airplane had the most success" or "which airplane developed the foundations" then lots of WWII airplanes would be interesting answers. But the actual question was "which is the best ...

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by kitplane01
Wed Aug 11, 2021 12:41 am
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2586

Re: Best Ground Attack Aircraft before 1977

My choice would be the A-1E/H Sky Raider and the A-7D SLUF (the "E" was good too, but it came along later). The F-100D/F was also very good at CAS. The A-4 is an honorable mention. The AH-1 never had enough ammo, but the "in country converted" UH-1 gunships (up to four M-2 .50 c...

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by kitplane01
Wed Aug 11, 2021 12:38 am
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2586

Re: Best Ground Attack Aircraft before 1977

You made the almost same thread nearly a year ago, OP: https://www.airliners.net/forum/viewtopic.php?f=10&t=1452295&p=22441961#p22441961 There was already a consensus that the A-7 was probably the best CAS aircraft at the time. Whats the point of asking that question again? This post has a ...

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by kitplane01
Tue Aug 10, 2021 3:10 am
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2586

Re: Best Ground Attack Aircraft before 1977

Ground attack is a pretty broad category. If you were to say Close Air Support, the A-1 and A-26 get my vote. No other fixed-wing aircraft on the OP list brought the amount of fire power and time on station. The very first sentence is "What's the best purpose built close air support ground att...

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by kitplane01
Tue Aug 10, 2021 3:08 am
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2586

Re: Best Ground Attack Aircraft before 1977

I purposefully didn't chose a theatre or operation concept. Your pick (and yes I understand that allows for multiple correct answers). About the A-26 ... Hard to imagine the A-26 being survivable in any modern theatre. And if it's a permissive air environment, wouldn't something like an AH-1/Mi-24 b...

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by kitplane01
Tue Aug 10, 2021 3:02 am
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2586

Re: Best Ground Attack Aircraft before 1977

A-7 Corsair II. Was one of the most advanced ground attack aircraft, with advanced (for the time) navigation & autopilot system, advanced electronics that allowed for extremely accurate bomb drops, and had a decent turn of speed so it could get in and out quickly. I'm interested. How did this e...

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by kitplane01
Tue Aug 10, 2021 3:01 am
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2586

Re: Best Ground Attack Aircraft before 1977

Didn't the Harrier, A-4 and A-7 all suffer high(er) losses than expected ? IIRC the Israel Defense Force found the A-4 vulnerable to manpads that could not bring down other IDF aircraft. The US lost a boat load in SE Asia. She was designed more as a bomber than a ground attack aircraft . The Harrie...

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by kitplane01
Tue Aug 10, 2021 2:57 am
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2586

Re: Best Ground Attack Aircraft before 1977

tommy1808 wrote:
MB-326K/Impala Mk II. Cheap, effective, rough field capable and good in the secondary Helicopter hunter role.



Interesting choice.

Can you tell more? Why is it better than the other choices? I would understand if it was cheaper (and that counts) but does it have any other notable attributes?

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by kitplane01
Mon Aug 09, 2021 7:14 am
Forum: Military Aviation & Space Flight
Topic: Best Ground Attack Aircraft before 1977
Replies: 42
Views: 2586

Best Ground Attack Aircraft before 1977

What's the best purpose built close air support ground attack aircraft introduced before July 1st, 1977. - No choosing the F-14/15/16/Tornado/etc. Those are general purpose fighters, or derivatives thereof. Not purpose built ground attack aircraft. - Yes, the A-10 is wonderful. It was introduced in ...

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by kitplane01
Mon Aug 09, 2021 6:55 am
Forum: Military Aviation & Space Flight
Topic: KC-46 now cleared to operationally refuel some aircraft
Replies: 25
Views: 2962

Re: KC-46 now cleared to operationally refuel some aircraft

At least this is step in the right direction. I want all of the the "330 MRTT is a more betterer airplane!" guys on this forum offer to buy me a beer for every EU nation sourced sortie a USAF tanker or airlift mission supports in the next 24 months, until I need a liver transplant. There'...

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by kitplane01
Mon Aug 09, 2021 2:26 am
Forum: Military Aviation & Space Flight
Topic: KC-46 now cleared to operationally refuel some aircraft
Replies: 25
Views: 2962

KC-46 now cleared to operationally refuel some aircraft

Reading the whole article, my understanding is that before July 9th the KC-46 had been certified for testing or exercises, but not operational use. But now it is certified for day-to-day refueling operation and can do some planes such as F-18 that use a drogue, and three large planes that use a boom...

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by kitplane01
Sat Jul 24, 2021 10:35 pm
Forum: Technical/Operations
Topic: Jetbridges
Replies: 6
Views: 1497

Jetbridges

Do jetbridges come in various heights? If Delta decides to divert a 777/A350 to the local small regional airport, can the jet bridge handle passenger unload? Can it even reach up to the 777/A350s door? Can the small regional airport even unload the bags?

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by kitplane01
Thu Jul 22, 2021 7:13 pm
Forum: Military Aviation & Space Flight
Topic: Cost of adding new weapons to the F-35
Replies: 7
Views: 1305

Re: Cost of adding new weapons to the F-35

Integration between a weapon and an aircraft often requires custom software interfaces to be developed, which then needs lengthy validation and certification work to ensure the software modifications done to the aircraft won't affect other systems. The F-35 is expected to come out with the Universa...

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by kitplane01
Wed Jul 21, 2021 10:39 pm
Forum: Military Aviation & Space Flight
Topic: Cost of adding new weapons to the F-35
Replies: 7
Views: 1305

Re: Cost of adding new weapons to the F-35

Integration between a weapon and an aircraft often requires custom software interfaces to be developed, which then needs lengthy validation and certification work to ensure the software modifications done to the aircraft won't affect other systems. The F-35 is expected to come out with the Universa...

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by kitplane01
Wed Jul 21, 2021 7:54 am
Forum: Military Aviation & Space Flight
Topic: Cost of adding new weapons to the F-35
Replies: 7
Views: 1305

Cost of adding new weapons to the F-35

The British MOD says "The estimated costs of integrating ASRAAM, Paveway IV and SPEAR Cap 3 weapons onto the F-35 Lightning are as follows: ASRAAM: £47 million, Paveway IV: £103 million, SPEAR Cap 3: £170 million.” https://ukdefencejournal.org.uk/how-much-does-it-cost-to-add-weapons-to-the-f-35...

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by kitplane01
Mon Jul 19, 2021 10:53 pm
Forum: Civil Aviation
Topic: The Rest of Michigan Aviation Thread - 2021
Replies: 107
Views: 12394

Re: The Rest of Michigan Aviation Thread - 2021

So, something I've been thinking about lately in regards to Marquette (MQT/KSAW). With DL (OO) seemingly winding down 50-seat CR2 flying, what is the future looking like for their long standing Marquette service? Is there a potential for larger RJs (Eagle operated the CR7 to ORD for a while)? Or, i...

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by kitplane01
Thu Jul 08, 2021 11:23 pm
Forum: Military Aviation & Space Flight
Topic: Stealth is very important
Replies: 56
Views: 5025

Re: Stealth is very important

Kitplane 01 wrote: "4- Stealth is very important. Any stealthy airplane can beat in beyond-visual-range combat any non-stealthy airplanes. Between an F-35 and any of F-15, Su-35, Eurofighter, etc. the F-35 wins." No, any good F-15, F-16, Eurofighter, Rafale, or FA-18E/F pilot would fire o...

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by kitplane01
Thu Jul 08, 2021 11:19 pm
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 20586

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

If the goal is to move palletized freight across the ocean, I would be a KC-46 moves more for fewer dollars than a C-17. And the Civilian Air Transport could move those pallets for much cheaper than either. That is also why the USAF does not need the cargo carrying capacity of a tanker other than p...

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by kitplane01
Wed Jul 07, 2021 3:42 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 20586

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

That's right, the strategic transport role of these Tankers Transport is not really important because other aircraft are available and the role is somewhat impractical for the KC46. When refueled, a C-17 can carry a lot more across the Pacific if needed. ... Plenty of other capacity is available, o...

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by kitplane01
Wed Jul 07, 2021 3:28 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 20586

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

Boeing need this aquisition asap. By the time the KC-Y contract is signed, Boeing and Airbus would have moved beyond the current crisis. Neither company need this contract ASAP. Both these companies need the airline industry to recover ASAP so new commercial airlines gets delivered. Boeing has star...

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by kitplane01
Thu Jul 01, 2021 6:05 am
Forum: Military Aviation & Space Flight
Topic: Stealth is very important
Replies: 56
Views: 5025

Re: Stealth is very important

Suppose your India looking at China. Or Pakistan looking at India. Either way your air force probably should spend its entire budget on those fighters needed to combat the larger enemy. Don’t spend money on cheap ground attack aircraft when you cannot get air superiority. For these nations, would y...

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by kitplane01
Tue Jun 29, 2021 7:45 pm
Forum: Civil Aviation
Topic: Updated: United confirms order for 200 737MAX and 70 A321neo
Replies: 925
Views: 158987

Re: United Airlines confirms order for 200 737MAX and 70 A321neo

A220 is amazing short field. With market fragmentation, they need to do a system approach. I think UA needs shortfield performance, that favors the A221 over the E2-195. I do not see any E2-190 order in North America due to the cost per passenger (I believe the market will upgauge to a minimum of t...

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by kitplane01
Tue Jun 29, 2021 7:29 pm
Forum: Civil Aviation
Topic: Updated: United confirms order for 200 737MAX and 70 A321neo
Replies: 925
Views: 158987

Re: United Airlines confirms order for 200 737MAX and 70 A321neo

United still needs an A319 replacement for hot and high or short runways. Why not the A320neo as well? (The A320neo can also replace the Boeing 757 on such missions as well.) A220 is amazing short field. With market fragmentation, they need to do a system approach. I think UA needs shortfield perfo...

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by kitplane01
Sat Jun 26, 2021 7:14 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 20586

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

There would be significant advantages to using the -800 for the MRTT or the freighter. But .. No one has ever ordered an MRTT based on the -800. Airbus has never built one. No one has ever ordered an A330F based on the -800. Airbus has never built one. I don't know why it would be hard to make a A3...

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by kitplane01
Fri Jun 25, 2021 5:44 pm
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 20586

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

The A330-800 has differences to the older A330 models. For example, the wing is 13 feel wider. It's got a max gross weight 20,000lb more. I don't think it's just a re-engine. Can you offer a reference that it's possible to buy a MRTT with the NEO engines? Or an example of anyone who has? The wing o...

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by kitplane01
Fri Jun 25, 2021 8:30 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 20586

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

I really really really didn't think the MRTT was based on the A330-800. I believe it uses the older engines. Can you provide a cite that Airbus is even considering an MRTT based on the NEO? The Airbus A330 tanker modification is an STC that can be applied to new build or retrospectively to second h...

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by kitplane01
Fri Jun 25, 2021 3:45 am
Forum: Military Aviation & Space Flight
Topic: Hubble - Payload Computer Problem
Replies: 12
Views: 2387

Re: Hubble - Payload Computer Problem

We have a lot of keyhole satellites up there, and Hubble is essentially the same thing but pointed outward, from what I’ve read. I’d expect if it did suddenly fail that there could be discussions to launch an upgraded basic replacement. KH-11 and KH-12 with optics also by Perkin Elmer probably coul...

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by kitplane01
Fri Jun 25, 2021 3:40 am
Forum: Military Aviation & Space Flight
Topic: Another Boeing-Airbus tanker war is coming soon, KC-Y
Replies: 220
Views: 20586

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

A major part of the win to Boeing was over life cycle costs, with the A330-800 base frame they have an aircraft that now burns less fuel than a KC-46 which is more suited to the Pacific instead of the Middle East. Additionally Airbus now has fully autonomous tanking sorted. I really really really d...

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