Search found 2553 matches

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by kitplane01
Sat Oct 01, 2022 3:46 am
Forum: Military Aviation & Space Flight
Topic: USAF Tactical Tanker
Replies: 44
Views: 2364

Re: USAF Tactical Tanker

The MQ-25 program has two goals: (1) tanking and (2) reseach into drones-from-carriers. If the only goal was #1 it would be cheaper to just buy more F-18s. A single MQ-25 can offload more fuel at range than two F-18 buddy tankers. So now you have lower purchase price. 1 engine instead of 4. One dro...

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by kitplane01
Sat Oct 01, 2022 12:53 am
Forum: Military Aviation & Space Flight
Topic: USAF Tactical Tanker
Replies: 44
Views: 2364

Re: USAF Tactical Tanker

The MQ-25 program has two goals: (1) tanking and (2) reseach into drones-from-carriers. If the only goal was #1 it would be cheaper to just buy more F-18s. :shakehead: Even if the MQ-25 only pass gas, it is still cheaper than buying more F-18 cause you have one less engine and one less pilot to mai...

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by kitplane01
Fri Sep 30, 2022 8:12 pm
Forum: Military Aviation & Space Flight
Topic: USAF Tactical Tanker
Replies: 44
Views: 2364

Re: USAF Tactical Tanker

The KC-46 costs $239.8 million each. https://www.gao.gov/assets/700/699661.pdf The MQ-25 program cost is $11.1 billion for 76 tankers or $155 million per drone. https://www.fool.com/investing/2021/07/17/boeings-billion-dollar-drone-tanker-takes-flight/ The USAF would happily pay $400 million each f...

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by kitplane01
Fri Sep 30, 2022 8:07 pm
Forum: Military Aviation & Space Flight
Topic: USAF Tactical Tanker
Replies: 44
Views: 2364

Re: USAF Tactical Tanker

Producing the B-21 will cost $20B for the next five years. The USAF is keeping the production count secret, but I doubt its more than 30. I don't know if I would call it "secret". As it stands right now, the USAF has been very vocal about wanting a minimum of 100 and 120 would be better. ...

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by kitplane01
Thu Sep 29, 2022 8:28 pm
Forum: Military Aviation & Space Flight
Topic: USAF Tactical Tanker
Replies: 44
Views: 2364

Re: USAF Tactical Tanker

As is must fit a refueling boom it has to be much bigger than the MQ-25 drone tanker. The B-21 frame appears perfect in size. The B-2 has around 80% of the fuel capacity of the KC-46 and the B-21 is noticeably smaller than the B-2. So the B-21 might have around half the fuel capacity of the KC-46 w...

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by kitplane01
Thu Sep 29, 2022 8:25 pm
Forum: Military Aviation & Space Flight
Topic: USAF Tactical Tanker
Replies: 44
Views: 2364

Re: USAF Tactical Tanker

A tanker version of the C-130 (with boom) would obviously have more commonality with what the USAF already flies. Does the KC-390 have much of an advantage? (Yes, it does somewhat better in payload-range, but it's not a huge increase.)

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by kitplane01
Wed Sep 28, 2022 3:50 am
Forum: Civil Aviation
Topic: Three Ocean Shipping Company to start Air Freight lines
Replies: 0
Views: 732

Three Ocean Shipping Company to start Air Freight lines

* Mediterranean Shipping Co., the world’s largest container line, will expand into air cargo using four leased Boeing Co. wide-body freighters after missing out in a bid for Italy’s flag-carrier airline. * CMA began flying cargo jets in 2021 and in May, swollen with profits generated during the coro...

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by kitplane01
Sun Sep 25, 2022 4:15 am
Forum: Military Aviation & Space Flight
Topic: No F-22B version
Replies: 60
Views: 4816

Re: No F-22B version

I didn’t think we were talking about upgrading the existing F22s. That does sound economically horrible. I believe we started by saying that f22 production could have continued by pre buying soon to be discontinued chips. I think we have agreement??? Crudely summarizing, soon to be discontinued chi...

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by kitplane01
Sat Sep 24, 2022 10:51 pm
Forum: Military Aviation & Space Flight
Topic: No F-22B version
Replies: 60
Views: 4816

Re: No F-22B version

From what I can see, the part is not being used by industry any more. They have another part that has the same fit but with more functionality that's more widely use. And even at $100 a piece, it is not worth keeping making them when we only consume about 10 a month. If push comes to shove, we can ...

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by kitplane01
Sat Sep 24, 2022 10:49 pm
Forum: Military Aviation & Space Flight
Topic: No F-22B version
Replies: 60
Views: 4816

Re: No F-22B version

… "politics stopped me from buying ahead" isn't really a good answer. Unfortunately, the government is full of “not good” answers. It’s just how the system is set up. No one is saying what you’re saying isn’t physically doable - it is. But it’s absolutely not economically doable. The syst...

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by kitplane01
Sat Sep 24, 2022 6:45 pm
Forum: Military Aviation & Space Flight
Topic: No F-22B version
Replies: 60
Views: 4816

Re: No F-22B version

However, LM has lots of warehouses, if you want to buy a few for future needs. I still want to know how the current F-22s are being supported. I told you, the DLA. They hold all legacy components for program sustainment. and LM uses that material per awarded contracts to sustain the aircraft. https...

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by kitplane01
Sat Sep 24, 2022 6:37 pm
Forum: Military Aviation & Space Flight
Topic: No F-22B version
Replies: 60
Views: 4816

Re: No F-22B version

Really hard to pick sides, here. On one side is the cogent, well-reasoned argument made by well informed people citing logical hardware, coding, and supportability flaws in the program which prevented “future-proofing” and prevented future growth. Flaws which are so well known they are industry pos...

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by kitplane01
Sat Sep 24, 2022 5:57 am
Forum: Military Aviation & Space Flight
Topic: No F-22B version
Replies: 60
Views: 4816

Re: No F-22B version

I don't believe this. If the air force wanted to continue to build more F-22s, it would have been easy to buy a few thousand i960s and other ICs as the production was winding down. In fact, I rather hope they did because the existing fleet need to be supported. Seriously, if Intel calls up and says...

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by kitplane01
Fri Sep 23, 2022 5:18 pm
Forum: Military Aviation & Space Flight
Topic: No F-22B version
Replies: 60
Views: 4816

Re: No F-22B version

Just for comparison, the early 1970's Mig-25M (2 prototypes) which had R15BF2-300 engines which fixed the overspeed issues, gave legitimate mach 3.3 top speed, and had a lot more power (32k lbs thrust). Demonstrated 1200 nmi combat radius at mach 2.35 cruise with 4x1000 lb AAM's, 80,000 ft combat c...

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by kitplane01
Fri Sep 23, 2022 5:16 pm
Forum: Military Aviation & Space Flight
Topic: No F-22B version
Replies: 60
Views: 4816

Re: No F-22B version

No, production was curtained because a number of critical components in the F-22's avionics went out of production from various subcontractors, and there was no quick and cheap way of finding an alternative part or supplier to provide said components. Basically, the F-22 has a very bad case of lock...

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by kitplane01
Fri Sep 23, 2022 2:16 am
Forum: Military Aviation & Space Flight
Topic: No F-22B version
Replies: 60
Views: 4816

Re: No F-22B version

No, production was curtained because a number of critical components in the F-22's avionics went out of production from various subcontractors, and there was no quick and cheap way of finding an alternative part or supplier to provide said components. Basically, the F-22 has a very bad case of lock...

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by kitplane01
Sun Sep 11, 2022 6:16 pm
Forum: Military Aviation & Space Flight
Topic: SpaceX - Tests, Launches, Developments - 2022
Replies: 243
Views: 30034

Re: SpaceX - Tests, Launches, Developments - 2022

zanl188 wrote:
T-Mobile to provide cell service to existing cell phones thru Starlink satellites. In Beta starting next year.


Can you share more? How does an existing 5G phone talk to satellite in space? Surely the sat cannot have a license to broadcast on the 5G frequencies down to earth?

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by kitplane01
Thu Sep 08, 2022 5:20 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

In fairness RJMAZ, Artemis really only became a defined program fairly recently, in the past 5 years. It wasn't only political interference, a tug of war over funding COTS and SLS that caused delays, a lack of a defined mission did not help SLS. But isn't this how it always is these recent decades?...

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by kitplane01
Thu Sep 08, 2022 5:18 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

I personally find these comparisons with Starship to be way off the mark. ... SLS may be a technical dead end (only if reusability at these kinds of scale and energy ever become doable, which is far from a thing yet), but at the moment, it is the only way to send humans to the moon. In 20 or 30 yea...

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by kitplane01
Thu Sep 08, 2022 2:54 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

Please do not alter or twist my thoughts and words to suit your purpose. That is an extremely lame form of argument, that is responsible for much of the misinformation put forward on this subject. You should be able to formulate and express your own independent thoughts & points, without co-opt...

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by kitplane01
Thu Sep 08, 2022 7:11 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

The goal is not to spend about $100B to get new footprints on the moon. The goal is long term cheaper access to space in quantity. SLS does not move us toward that goal. Resuable rockets like Starship do. You can write about how Starship with it's lower ISP fuel has trouble with deep space missions...

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by kitplane01
Thu Sep 08, 2022 5:55 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

IF SLS can send payloads on direct trajectories in a single launch why is it that they need a modified version of Starship to land and return astronauts from the moon? How is Starship getting out of orbit? Do a little research. You will see that the lander is launched in to lunar orbit and only the...

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by kitplane01
Thu Sep 08, 2022 5:49 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

I'm saying that you misunderstand. I don't want SpaceX to make the SLS (though I'd be my house they would do a better job than NASA). I'm saying I want SpaceX to make Starship, or Falcon Heavy ... and if you really want to go to the moon with fragile humans to use Starship. or Falcon Heavy. Don't t...

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by kitplane01
Thu Sep 08, 2022 1:48 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

bobinthecar wrote:
I bet your vision of the 20 years from now future includes nothing like the SLS, and a lot like Starship.



No matter how you spin it ULA is fleecing the government.


Actually, I'd guess that profits for ULA are just not that high. Also, they are not the low cost provider :-)

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by kitplane01
Thu Sep 08, 2022 1:46 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

This again is a misunderstanding. The design goal of SLS is to maximize characteristic energy (C3) delivered to a given payload on orbit. Starship design goal is reusability. These are opposing trade constraints for any rocket. SLS gives up reusability for C3. Starship gives up C3 for reusability. ...

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by kitplane01
Thu Sep 08, 2022 1:44 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

I believe this argument is largely based on misunderstanding of the industry. At the time SLS was conceived, there was no commercial entity that could have undertaken the project. As I mentioned, it's a fallacy that has taken root amongst Musk supporters, but Musk himself does not make this claim. ...

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by kitplane01
Wed Sep 07, 2022 5:29 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

SpaceX's Starship is to be fully reusable, and no one thinks they spent $25B to develop it. Also, arguably it began serious development in 2017, and 5 years later they have a prototype. This again is a misunderstanding. The design goal of SLS is to maximize characteristic energy (C3) delivered to a...

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by kitplane01
Wed Sep 07, 2022 5:16 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

No one I've met knows the future ... but I think one can make a strong argument that for NASAs launch system "burn it to the ground and contract everything to ULA/SpaceX" would be exactly right. I'd wonder if you would get twice the speed at half the cost. I believe this argument is large...

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by kitplane01
Wed Sep 07, 2022 3:32 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

Second, I politely disagree with how you do math. For the F-35, development costs *should* count. For Artemis, development costs *should* count. And if it's purpose is to put humans on the moon, then the cost of a lunar-rated space suit also counts. Even though NASA plans to spend an astronomically...

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by kitplane01
Tue Sep 06, 2022 8:47 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

Even better, project total costs over some reasonable number of launches. " NASA's spending on its Artemis program, which aims to establish a sustainable human presence on and around the moon by the end of the decade, is projected to reach a total of $93 billion by 2025, according to a new aud...

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by kitplane01
Tue Sep 06, 2022 8:43 pm
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

Math says max efficency is to carry the highest ISP fuel the highest, and burn the lowest ISP fuel as close to the ground as possible. Therefore the LOX+H engines *should* be the ones to throttle back, and the SRBs should be at max power. The efficiency of the stack is the combined efficiency of th...

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by kitplane01
Tue Sep 06, 2022 8:02 pm
Forum: Military Aviation & Space Flight
Topic: Which countries make jet engines?
Replies: 35
Views: 4034

Re: Which countries make jet engines?

bikerthai wrote:
kitplane01 wrote:
Neither China nor Russia nor have access to the best technology to build jet engines.


See ground rule 2 on the original post.

bt


I remember (I wrote it). I was just arguing what you wrote, not that China and Russia cannot make jet engines.

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by kitplane01
Tue Sep 06, 2022 5:51 am
Forum: Military Aviation & Space Flight
Topic: Which countries make jet engines?
Replies: 35
Views: 4034

Re: Which countries make jet engines?

I think the comparison by country / nation is a bit meaningless. Ding Ding. The technology for manufacturing of jet engines do not belong to any individual country but the multinational corporations that builds them. Things like single crystal casting of the turbine blades, to the superplastic form...

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by kitplane01
Tue Sep 06, 2022 5:46 am
Forum: Military Aviation & Space Flight
Topic: SLS / Orion - Tests, Launches, & Developments
Replies: 358
Views: 43162

Re: SLS / Orion - Tests, Launches, & Developments

The current RSRMV SRB has only marginal improvements over the shuttle era, because of the need to use up the existing inventory. The follow on BOLE, which is based on the OmegA, is significantly improved. It has composite casing, which means it carries much more propellant for the same weight, with...

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by kitplane01
Sat Sep 03, 2022 8:13 pm
Forum: Military Aviation & Space Flight
Topic: Which countries make jet engines?
Replies: 35
Views: 4034

Re: Which countries make jet engines?

No it doesn’t. Where do you get all these ideas from? Do you even know what France has sent to Saudi? In the 80’s in terms of combat aircraft they tried hard but were beaten by.........Tornado. Don’t you think that Saudi buying large numbers of Tornados in the 80’s and 90’s, a UK/German/Italian pro...

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by kitplane01
Fri Sep 02, 2022 5:12 pm
Forum: Military Aviation & Space Flight
Topic: Which countries make jet engines?
Replies: 35
Views: 4034

Re: Which countries make jet engines?

Within the EU + EEA are no restrictions. Just if the producer wants to export it outside of EEA/EU, they have to get a license. So just building and using it there is no problem. France might want all of its aircraft built in France. If the engine contains significant German parts … the Saudi expor...

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by kitplane01
Thu Sep 01, 2022 6:05 am
Forum: Military Aviation & Space Flight
Topic: Which countries make jet engines?
Replies: 35
Views: 4034

Re: Which countries make jet engines?

Except when Germany decides you can't export this or that to such and such country... Within the EU + EEA are no restrictions. Just if the producer wants to export it outside of EEA/EU, they have to get a license. So just building and using it there is no problem. France might want all of its aircr...

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by kitplane01
Tue Aug 30, 2022 4:26 am
Forum: Military Aviation & Space Flight
Topic: An upgraded F-35 in 10 years
Replies: 49
Views: 3986

Re: An upgraded F-35 in 10 years

The biggest single upgrade, outside of a series of software module changes/upgrades/maintainability stuff which is boring for us to discuss, would to me be the integration of a directed energy weapon. This again would benefit from a maxed out electrical capacity from the engine, imho. I really real...

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by kitplane01
Tue Aug 30, 2022 4:24 am
Forum: Military Aviation & Space Flight
Topic: No F-22B version
Replies: 60
Views: 4816

Re: No F-22B version

The answer to all your questions is money. Building them and operating them was super expensive, and the F-35 was to be *much* cheaper.

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by kitplane01
Thu Aug 25, 2022 6:59 pm
Forum: Military Aviation & Space Flight
Topic: An upgraded F-35 in 10 years
Replies: 49
Views: 3986

Re: An upgraded F-35 in 10 years

No. The J-10 (First flight 1998) is in no way a copy of the Saab Viggen (First flight 1967). They both have delta wings and canards, but so does every fighter made in Europe in the last 20 years (and they are not copies of the Viggen either). That combination is just one of the standard solutions t...

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by kitplane01
Thu Aug 25, 2022 6:50 pm
Forum: Military Aviation & Space Flight
Topic: Future of the Turkish Air Force
Replies: 35
Views: 3663

Re: Future of the Turkish Air Force

I think the long term future for the Turkish Air Force involves repairing relations with the U.S. after Edrogan is gone and re-entering the F-35 program. And they need to swallow their pride and scrap the stealth fighter program that is going to suck up tremendous amounts of money and resources. Bu...

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by kitplane01
Thu Aug 25, 2022 8:18 am
Forum: Military Aviation & Space Flight
Topic: An upgraded F-35 in 10 years
Replies: 49
Views: 3986

Re: An upgraded F-35 in 10 years

No one thinks the J-10 or the J-20 are a copy of anything ... and most people believe both are potent fighters. What you wrote was more true in the past than now The J-10 is a rough copy of the Saab Viggen. The J-20 is more original but copies many elements of the F-22, adapting them to the J-10 ca...

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by kitplane01
Thu Aug 25, 2022 8:11 am
Forum: Military Aviation & Space Flight
Topic: An upgraded F-35 in 10 years
Replies: 49
Views: 3986

Re: An upgraded F-35 in 10 years

What you wrote about the F-15/F-16 is kind of like "they are good except they're gonna get shot down". What does "less stealthy but good surviviability" even mean? It sure doesn't mean "successfully runs from missiles" or "can take a missile hit and keep flying&qu...

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by kitplane01
Thu Aug 25, 2022 8:07 am
Forum: Military Aviation & Space Flight
Topic: Future of the Turkish Air Force
Replies: 35
Views: 3663

Re: Future of the Turkish Air Force

https://www.defensenews.com/pentagon/2022/08/16/us-holds-fire-on-reports-of-turkeys-second-s-400-shipment/ Think they will just keep pushing it until they are kicked out of the NATO. In my opinion... Turkey is not going to scrap S-400 at this point Turkey is not going to stop being an authoritarian...

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by kitplane01
Thu Aug 25, 2022 8:04 am
Forum: Military Aviation & Space Flight
Topic: Future of the Turkish Air Force
Replies: 35
Views: 3663

Re: Future of the Turkish Air Force

NATO member Turkey dropped its opposition to Finland and Sweden joining NATO. If US Congress is going to block supply of US aircraft or engines to NATO member Turkey, what has Turkey received in return? Sweden and Finland have banned some Kurdish groups the Turkish government doesn't like. Not ever...

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by kitplane01
Thu Aug 25, 2022 8:01 am
Forum: Military Aviation & Space Flight
Topic: Which countries make jet engines?
Replies: 35
Views: 4034

Re: Which countries make jet engines?

Not used in "sort of manned combat aircraft" but on a tactical cruise missile AV-TM300 (or MTC300): https://www.turbomachine.com.br/ https://static.wixstatic.com/media/e3761a_2020602b65a749cfac7b96abc34bf6f1~mv2_d_2000_2000_s_2.png/v1/fill/w_420,h_276,al_c,q_85,usm_0.66_1.00_0.01,enc_auto...

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by kitplane01
Wed Aug 24, 2022 2:01 am
Forum: Military Aviation & Space Flight
Topic: An upgraded F-35 in 10 years
Replies: 49
Views: 3986

Re: An upgraded F-35 in 10 years

Is there any reason to think it wouldn't be? No one knows what China will have in 10 years. But when my guess some brand new fighter is in the works. True, but historically China has copied existing designs, and the copies have not had the same capabilities as the originals. When 6th gen fighters a...

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by kitplane01
Wed Aug 24, 2022 1:56 am
Forum: Military Aviation & Space Flight
Topic: Future of the Turkish Air Force
Replies: 35
Views: 3663

Re: Future of the Turkish Air Force

https://www.defensenews.com/pentagon/2022/08/16/us-holds-fire-on-reports-of-turkeys-second-s-400-shipment/ Senate Foreign Relations Committee Chairman Bob Menendez, D-N.J., has threatened to block the F-16 sale over Turkey’s continued possession of the S-400s, its violations of Greek airspace and C...

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by kitplane01
Tue Aug 23, 2022 8:28 am
Forum: Military Aviation & Space Flight
Topic: An upgraded F-35 in 10 years
Replies: 49
Views: 3986

Re: An upgraded F-35 in 10 years

Avatar2go wrote:
Is there any reason to think it wouldn't be?


No one knows what China will have in 10 years. But when my guess some brand new fighter is in the works.

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