dark light

Adrian_44

Forum Replies Created

Viewing 15 posts - 196 through 210 (of 402 total)
  • Author
    Posts
  • in reply to: Flanker parents… #2519619
    Adrian_44
    Participant

    RE: Flanker parents…

    Could be possible that the F 15 and F14 inspired the Flanker?

    And what inspired the F15 and F14 ? The MiG 25 ?

    I don’t think inspire is the best word to use. Rather, each of these is a response to a percieved threat.
    The MiG-25 traveling above 70,000 feet and at speeds of Mach 2.5 or higher was one threat of which the F-14A and F-15A was designed to deal with. The F-14A’s primary threat was the masses of Soviet bombers attacking the fleet with anti-ship missiles. The F-15A was designed to deal with the 3,000 plus MiG-21’s and 23’s over central Europe. (In an WP vs NATO conflict the F-15 was supposed to maintain a 6:1 kill ratio if NATO had any chance of winning!) The WP had a large numerical edge in aircraft over NATO. The USA used quality to challenge the numbers of WP aircraft.
    The F-14, F-15 and Su-27 all started in 1969 but, it was Grumman who was able to get operational aircraft in just fifty-one months! The Su-27 (or T-10) was to ambitious in its design. Its specs called for it to be 10% better in all important specs compared to the F-14 or F-15. This caused it to become operational (in limited numbers) fifthteen years later (five Su-27 in 11/86 -PVO).
    One of the primary goals of the S-37 (Su-47) was to get computer simulation to the point where it accurately portraid the final results of the design. This is what took the Su-27 so long in developement, the inability to predict the final results of the design would be. This caused the crash of four test aircraft and the complete redesign of the T-10 in 1980 to the Su-27 we know today.
    Had the Cold War continued both the Rafale and F-22 would have become operational in the mid-1990s! Only about seven years after the V-VS recieved its first Su-27.
    All part of the arms race we know.

    Adrian

    in reply to: F-15, F/A-18 #2520648
    Adrian_44
    Participant

    RE: F-15, F/A-18

    [

    Compare the USN Hornets to the F-15s of the Hawaii ANG and you get a first-hand look at the problems salt water corrosion can cause. The F-15 deals with it, but not as well as a Hornet can.

    In that comparison we are talking about degrees of salt water exposure. The high humidity in Hawaii and the small amount of salt in the air because the F-15’s are parked about a mile or so from the ocean. (Many airliners pass the F-15 parked, as they taxi from the outer most runways on Sand Island to the airport terminal in Honlulu. An F/A-18 on a carrier deck often gets wet in heavy weather.

    the Super Hornet is likely to be in service longer than the Eagle, so you have the option of increased longevity.

    That is debatible, the USAF plans to operate the F-15’s to the 2020 to 2025 time frame. The longevity of both aircraft greatly depends on the production (rate and totals) of the F-35. The biggest advantage the F/A-18E/F has over the F-15E is by the time the F/A-18E/F was being designed reliability was a realized as a crucial factor in the total cost of an aircraft. The manhours of maintenance versus the flight hours is far less for the Super Hornet compared to the Strike Eagle.

    Adrian

    in reply to: Sidestick Controller #2520661
    Adrian_44
    Participant

    RE: Sidestick Controller

    Not quite. A Siemens-modified He111 was the first, with an electric sidestick, 1942. Then the X-15 and a F-107A. F-16 was the first in series production.

    Thank you for the correction and update. Also thanx Flanker_man for your information. I had been under the impression it was all the models.

    Adrian

    in reply to: What will be a classic in the future? #2521013
    Adrian_44
    Participant

    RE: What will be a classic in the future?

    The F-15 beats the F-16 in the A/A role clearly if you ask me

    NO!!! The F-15 has a difficult time with the F-16 with the F-16 winning at least half the encounters. Where the F-15 accels is where there is no support available. The fighter has to survive without AWACS or GCI, such as the Israeli F-15A’s that escorted the F-16A’s that bombed the Osirak nuclear reactor, Iraq. On 09/11/01, US Air Force #1 was initially escorted by F-16C’s. Later, they were replaced with F-15C’s. These are the sort of things you pay the extra money for when you buy a super fighter.
    The F-15’s radar is more capable than the F-16’s. The F-15 can kill an MiG-25 over 70,000 feet at speeds over Mach 2.0 or detect cruise missiles along the deck at a greater range than the F-16’s. More transmitting power also equates to better operations at longer ranges against broadband jamming.
    The greater range of the F-15’s mean it can detect the F-16 at a range greater than the F-16 can detect the F-15. The F-15 then can move to the side outside the scanning area of the F-16.

    The F-15 will be a classic due to its kill ratio, plain and simple. A ratio of 100+:0 is unequaled in aircombat history.

    Commonality is probably one reason why the F-16 was selected over the F-17, but that wasnt really a requirement.

    That was one reason, another was the Texas lobby told GD that they would win the contract and therefore GD could ramp up and start production nine months earlier than Northrop could with the YF-17. The USAF was by this time a firm believer in John Boyd’s theory of energy manevering. The YF-16 was designed using this theory and the YF-17 was not.

    I’ve heard about Hornets going well over 50 deg.

    In the AW&ST Dec 16, 1974 Pg 43 issue, HE Chouteau (Northrop’s chief test pilot for the YF-17 program) stated about high AoA, “then we started flying to increased angles -35 deg., 40 deg., 60 deg., -and then we did vertical recoveries from 90 deg. to determine what the best recovery procedures would be.”

    However if you run out of missiles the cobra will be useful.

    Yes, it is a gun maneuver when you are in real close. The last time an America made aircraft used its gun to make a kill was on 05/17/86 by the Pakistan Air Force. The last time a Russian fighter used its gun was a MiG-29 on 05/18/00 of the Erethia Air Force. Missiles are getting better.

    Adrian

    in reply to: F-15, F/A-18 #2521052
    Adrian_44
    Participant

    RE: F-15, F/A-18

    WP840, you are comparing the F-15E versus the F/A-18E/F. An internal study by Boeing did just that, it revealed the F-15E out performs the E/F in every category except the F-15E CAN NOT, land on a carrier. The F-15E can carry an heavier ordnance load and has a much greater range than the F/A-18E/F.
    The US Navy was forced by Congress to do a study on “IF”, the F-15A could replace the F-14A? (A paper study only) The F-14A’s price was rising and Congress wondered if the Navy could use the F-15A instead to save money. The F-15A could not perform the F-14A’s mission. (SEE NOTE)
    The F-15A would approach a carrier at a higher speed and higher angle of attack. The effort to further strengthen the frame, re-design the landing gear, add the launch bar/hold back link for the nose wheel, changing many materials to withstand the corrosive effects of sea spray would all go to ruin the naval version of the F-15, the F-15E would be unacceptible for carrier usage.
    NOTE;
    In a study order by NORAD to be done by the North Dakota ANG in the late-1970’s, to evaluate the four new US jets, one of which would replace the F-106. The bottom line was the ND-ANG found the F-14A to be their first choice as a replacement for the F-106. It was found the F-15A with two Phoenix Missiles had less range and less time on station than the F-14A with six Phoenix Missiles! Second choice was the F-15A, third choice was the F-16A and the four choice was a surprise -to re-engine an F-4 Phantom and replace its radar with the Hornet’s radar. That was the only reference of the F/A-18 Hornet.

    The F-18 should have relaxed stability already.

    Relaxed stability is not something you can just add-on. It is something that needs to be part of the original design efforts. Relaxed stability is something that requires excess thrust to fully take advantage of that type of capabilities.

    Adrian

    in reply to: Sidestick Controller #2521111
    Adrian_44
    Participant

    RE: Sidestick Controller

    The F-16 was the first to have to have it. There is a problem with the seat being reclined so far back, neck problems created by trying to look behind to his “6”. Newer aircraft recline their seats but usually twenty degrees or less. The F-16 reclined at thirty degrees to increased the pilot’s tolerance to high G-forces.
    This is great while the pilot is maneuvering and doesn’t have look behind. Flight surgeons for the USAF have stated over eighty percent of the USAF pilots who complain of neck problems are F-16 pilots. The Su-27 was the first Soviet aircraft to have a side stick controller.
    The Rafale has the side stick controller but, its most advanced feature is its version of the Synthisized Emersion Research Envirement (SIERE) cockpit. The USAF and French Air Force are both working on different variations of a SIERE cockpit. The USAF is look forward to have the computer respond to voice commands and sensors to read biological responses to aid the computer. The French AF is working towards having hand motions to signal the computer to what command the pilot wants to be initiated.

    on a F-16 (simulator) it’s big, those tight movement limits are not really intuitive, and that elbow-rest hurts.

    Actually the joy stick moves one-eighth of an inch in either direction, basically force sensing. The rudder peddles moves one-half inch each way, in their travel. (AW&ST Oct. 21, 1974)

    Adrian

    in reply to: What a bad jetfighter F-16 it is! #2533558
    Adrian_44
    Participant

    RE: What a bad jetfighter F-16 it is!

    F-16 has been shot down by MiG-23 in confliction between Israel and Syria then also was shot down by Pnavia Tornado in NATO’s exercise!

    Can you name an aircraft that has not been shot down in an exercise? Syria ‘might’ have shot down an F-16 but, IDF/AF F-16’s have shot down FIFTY-TWO Syrian aircraft/helos! This includes fifthteen MiG-23’s and twenty-one MiG-21’s -confirmed kills!
    A USAF F-16C shot down a IrAF MiG-25 (the first kill using a Slammer Missile), a Dutch F-16A MLU shot down a Serbian MiG-29, Pakistani AF claims seven confirmed kills and, many more unconfirmed kill against Afghan AF aircraft. PAF have claimed no IAF aircraft and the IAF makes NO confirmed kill claims against PAF F-16’s! Greece and Turkey both have F-16’s and there has been combat between the two of them.
    The aviation world has a different opinion about the F-16. By the end of 2005 over four thousand, four hundred plus F-16’s have been ordered. Now with Block 50, 52 and, 60 being delievered, the F-16 stands a good chance of producing more aircraft than the F-4 Phantom 2! There were a little over five thousand F-4 Phantoms produced.

    While Syria makes many claims against Israeli fighters, very few can be substantiated! There are many websites on the internet as well as in Janes Book of Aircraft (annual) books which list aircraft and even serial numbers of aircraft sent to Israel. If you want to do the homework, you can verify aircraft Israel ordered versus what they have left.

    Would it help if it was a twin engine in case of birds going Engine Crazy?

    There is no evidence that a second engine would have helped the F-16. Compare the loss rate of the F-16 versus F/A-18! The reliability of modern jet engines is so high that aviation authorities allow ‘twin jet’ airliners to make trans-oceanic flights!

    Adrian

    in reply to: Water Cooled Aircraft Engines #2533592
    Adrian_44
    Participant

    RE: Water Cooled Aircraft Engines

    I am looking to see the feasibility of a water cooled aircraft engine in the range of 1500 hp, to be used in a small ground attack aircaft design.

    What capability would an aircraft with this sort of engine fullfill that a Jaguar, Su-25 or, A-10 could not perform? The vulnerability of all the CAS aircraft to systems to systems like the ZSU-23, is emmense. CAS aircraft must get through the threat envelope as quickly as possible. As an aircraft with a low powered engine (relatively), and can not be protected by any armor.

    My feeling is that (and please blow my feeling out if you can) such an engine would have higher survivability against IR SAMs

    Today’s IR systems are actually infra-red imaging, where the heat or infra-red image is detected of the entire aircraft.

    Adrian

    in reply to: Canards and the 4++ Gen. aircraft #2539042
    Adrian_44
    Participant

    RE: Canards and the 4++ Gen. aircraft

    the F-22 is the most sophisticated fighter currently in service, both fighters do not use canards.

    The F-35 was designed WITH canards! During the six hundred hours of wind tunnel testing of the aircraft at NASA Ames Research Center, was the decision made to eliminate them.
    True, canards are an “element” in the integrated design of an aircraft. The F-22 was designed without canards. One thing about the F-22 is, the stablators provide lift for the aircraft, which is why most calculations on weight versus lift are wrong and make the F-22 seem like it is just another in the pack of new aircraft.
    Conventional (stable) airframes require downforce from the horizontal stabs to maintain trim. Relaxed-stability (unstable) airplanes do not. In other words, the F-15 wing has to not only support the weight of the structure, it has to generate additional lift to balance the downforce from the tail. An F-22 gets the opposite effect – the wing can actually generate less lift than weight because the tail is helping, creating positive lift. (This, by the way, is a significant portion of the drag savings, as all lift (up or down) generates drag.)
    The Americans use canards when appropriate, the B-1 Lancer, XB-70 Valkerie, the F-14A’s glove vanes, X-29, etc.

    Adrian

    Adrian_44
    Participant

    RE: F-22 – the world’s most advanced and capable fighter…..?

    Part of the reason the F-22 won the contract was that it flew much more than the basic flight tests, whereas the F-23 only flew the basic flight tests. The tests seem to indicate the F-22 was more mission ready and was less of a maintenance hog.

    Thank you for the additional information!

    I don’t think either aircraft pushed the all the way to the max speed.

    I don’t think GE or P&W pushed it all the way either.

    Adrian

    Adrian_44
    Participant

    RE: F-22 – the world’s most advanced and capable fighter…..?

    The F-22 will go the same way as all its predecessors: overstretched requirements, overbudget development, delayed IOC, continueing problems with the most advanced systems and finally a nice financial back-up from the American tax-payer to Lockheed-Martin and Co.

    OVER-SIMPLIFICATION! These are problems you run into with when you produce a new frontline fighter thirty years after the last one.
    Overstretch requirements;
    Would you prefer marginal improvement over the F-15? To be ‘just’ competitive with the latest being developed. THEN, cry when USAF has to use the aircraft and have the sort of kill ratio we had in Viet Nam?
    Overbudget development;
    Would you rather have an aircraft that had the problems of the F-14 Tomcat, where one hundred and thirdteen aircraft were lost in crashes?
    Delayed IOC;
    Write your senator and congressmen…. that is where the screw-up starts!
    Continueing problems with the most advanced systems;
    Can you name any military system that has made a quantum increase in capability that has not had this sort of “teething period?”
    Financial back-up from the American tax-payer to Lockheed-Martin and Co;
    Do you think you would have any major complex weapon system today, that is company sponsored?

    CNN was using negative hype to dramatize the situation to try to keep viewers attention.

    Contemporary news is a buisness, not a public service. Most of the people who work for news services know little about technology other than the latest on laptops and PDA’s. When it comes to weapon systems, they are ignorant and if some information is needed to cover world events (PGW#1, invasion of Iraq, etc.), they grab Janes or AW&ST. When the world event ends then they put away the information. So they remain ignorant!

    One thing that is not often discussed when comparing the YF-22 versus YF-23, is that both companies had to write an extensive set of test points or parameters the company needed to validate in flight testing. This one area where Lockeed did a much better job than did Northrop. YF-22 fired Sidewinder and Slammer Missiles during the competition period with the YF-23. Lockeed display a far greater amount of time in the air flying seventy-one missions in ninety days. Add to this the USAF had greater confidence in Lockeed than they did in Northrop.

    Adrian

    in reply to: Raptors at Red Flag #2507619
    Adrian_44
    Participant

    RE: Raptors at Red Flag

    I particularly liked this quote from an Aussie pilot:
    “The thing denies your ability to put a weapons system on it, even when I can see it through the canopy,” said RAAF Squadron Leader Stephen Chappell, F-15 exchange pilot in the 65th AS. “It’s the most frustrated I’ve ever been.”

    First thanx for the reference to the article.
    I think Leader Chappell got to the heart of fighting the F-22, that stealth is great but, the tremendous performance of the F-22 will make it a monster for enemy pilots for a long time.
    Firing a missile at a target approximately twenty thousand feet above you almost cuts in half the range of your missiles.

    In one of the early test, one F-22 piloted by Col. Timonthy Merrell went against five F-15C’s piloted by F-22 test pilots like Paul Metz, Capt. John Teichart, and three other pilots from the test or operational program).
    Paul Metz said he could tell by the calls and who was being killed, the F-22 was getting close but, he did not see the F-22 untile Col Merrell passed right over him. Plus even at that he never detected the F-22.
    Col. Merrell stated his greatest fear was running out of missiles!

    He did mention that his F-15 was at 45,000 feet during this one-sided engagement. No other hints were made of tactics used in this engagement or when Maj. Lanch Pilch flew his F-22 against four F-16C’s and kill them without any trouble.

    Adrian

    in reply to: Top Ten Modern Aircraft #2512219
    Adrian_44
    Participant

    RE: Top Ten Modern Aircraft

    4. E-3, the success ratio of the USAF owes alot to its development of AWACs, and reducing the workload of the pilots to a minimum to maintain situational awareness.

    Actually, the credit should go to the US Navy with the E-2 Hawkeye which started service in 1961! The E-3 became operational with the USAF in March of 1977. AWACS does provide the fighter pilots with the situational awareness previously only afforded by CGI for its interceptors.

    6. MiG-31, still the best interceptor in the world. Who give a sh_t about supercruise if you can stick the burners on for a 1/2 hour?

    I disagree with you there, I believe the best interceptor in service with the Russian AF is the Su-27! The war in Viet Nam illustrated interceptors can be forced to dogfight. If forced into a dogfight, I would much rather be in an Su-27 than any variant of the MiG-25/31.

    Notable exclusions and reasons why:
    F-22: I don’t consider its rivals to have made their appearance yet. [The EF and Rafale are 4+, not 5th gen IMO].

    The Typhoon, Rafale, Gripen are most diffinitely fifth generation aircraft. They were designed on a more reasonable budget than the F-22!

    Notable exclusions and reasons why:
    B-52: A big, fat, slow target on its prime mission of invading Soviet airspace IMO – without fighter cover it would have been a sitting duck.

    If that were the case, the Soviet Union would not have withdrawn its missiles from Cuba! The B-52’s were prepared to fight their way into the targets. Killing interceptor bases with Hound Dog Missiles along with Quail Missiles and ECM to get to the target. A huge path through the Soviet heartland would have been made through the PRC!

    The F-15 main role in the Bekka Valley was shoot any MiG-25 that would had tried to intercept the Israeli strike formations; or any MiG-23 that tried to scape the F-16 ambush, for the MiG-23s and MiG-21s was either they were going to be shot down by the F-16s at short range or shot at at long range by the F-15s

    The F-15 served as ‘top cover’ for the F-16’s and Kfirs. While the IDF/AF controlled the upper altitudes, the low altitudes for CAS were used fairly freely and effectively by the Syrian Air Force!
    SEE ACIG’s “Middle East Database -Syrian Tank-Hunters in Lebanon, 1982”
    http://www.acig.org/artman/publish/article_279.shtml

    The Most important aircraft of the XX century are aircraft that are associated with a historical moment and a Pilot, example the Wright Brothers` first flight in their airplane at Kitty hawk, the Red baron`s Albatros D III, Lindbergh`s Spirit of st Louis, Paul Tibbets` B-29 Enola gay, Yeager`s X-1, Gary Power`s U-2, Belenko`s MiG-25, and so on

    I must disagree with you there. Some of these aircraft were famous because they illustrate to the public as a whole, the tremendous advancement aviation had made.
    To that I don’t think the Albatros D III, Power’s U-2 or, Belenko’s MiG-25 should be in this group. The Red Baron’s accomplishment though notable was just part of the evolution of air power in WW1. Gary Powers being shot down by a SAM, simply illustrated something ‘USAF air intelligence’ had known for several years, that height alone offered no security. Which is why Kelly Johnson at Skunk Works had started working on the SR-71 two years before the U-2 was shot down.

    the F-15 was quit influencing because it has been a tool to shape History, has the best combat record of modern times and perhaps in the History of combat aviation

    True, it was a tool that affected world politics. The best combat record by a wide margin.

    I do not think the F-15 will be so ever lasting as probably other aircraft will be

    It already has been! There is no other fighter that has been a major power’s frontline fighter/interceptor for thirty plus years. Even if the Cold War had continued and the F-22 had become operational in the mid-1990’s, that still would have provided a long life of over twenty years as the USAF’s premiere fighter. Longer than any other previous fighter. Even the venerable F-4 Phantom 2 in which over 5,000 fighters were built was the pimary fighter for many air forces, was only the primary fighter for the US Navy for thirdteen years and the USAF for twelve years. Still a good life span for a Cold War fighter.
    Avionics improvements with insure it will be at least competitive for years to come. Will it be dominant in the future, in my opinion…. NO! At best, it will have a 1:1 kill ratio against the fighters being designed now or under major modifications. A very sad end to such a fine fighter.

    Adrian

    in reply to: Target designation pod in air-to-air role #2512332
    Adrian_44
    Participant

    RE: Target designation pod in air-to-air role

    Could it be further developed to be an effective counter to “radar stealth” aircraft? You may hide yourself against radar but not against thermal imaging camera…?

    The wider the detection area/volumn, the less the overall sensativity…. it is a design trade-off. Having a very narrow field of view offers greater range of detection but, at the cost of overall area of which a potential enemy can be detected. Detection is greatly dependent on enviremental conditions, the higher the moisture the shorter the detection range.

    The F-22 in particular will not fall into this situation! It was designed to emmit the IR signature in two narrow frequency bands that are not only difficult to detect but are not good at propagating over distances.

    In addition to counter this problem, aircraft like the F-22 on its ‘defensive’ situation display, indicates the range and angles of which it can be detected by enemy detection systems. So, the F-22 pilot can remain outside the detection boundaries thus, maintaining its stealth.

    Adrian

    in reply to: Viggen on carriers? Feasible or not? #2066997
    Adrian_44
    Participant

    RE: Viggen on carriers? Feasible or not?

    Adrian,
    in what circumstances? Internal fuel or with external tanks?

    The range figures are based upon the normal configuration to ferry an aircraft from one place to another, good advertisement type stuff.

    you haven’t actually answered the question.

    Is this the question you are referring to, “Could you tell me how you work out that the A-4 could carry more weapons & have a greater range than the Viggen?” If it is the question, the Skyhawk is just an older but more capable design as an attack aircraft!!

    What are your sources? And you haven’t actually answered the question.

    US Navy and Douglas Aircraft Corporation. They both boasted the A-4 was the first aircraft to be able to carry a heavier weapon’s load than the weight of the plane itself.
    This was current events long before the ARVNET!
    When you look at the data from the URL provided by Badger 1968, you will recognize that the A-4 was a fine airplane whos design was ahead of its time!

    I think the weapons load question is a case of the usual US practice always having been to quote the maximum theoretical external load (all pylons fully loaded)

    This is a common practice in US aerial combat operations (PGW#1, Kosovo, PGW#2, etc). To take off with a maximum ordnance load, minimum fuel load and, proceed to an aerial tanker to fill up the fuel tanks. Bingo fuel is calculated upon getting back to the aerial tanker.

    About the 1250 mile ferry range

    I use the stated ferry range since there is no standard configuration for maximum range. Even designations such as “Hi-Lo-Lo-Hi” does not tie down enough parameters to really evaluate the effective combat range of a fighter bomber. There is nothing spelled out how far the “lo” is, no standard load of weapon or fuel, not to mention the effects of winds aloft, etc. Ferry range is a measurement of how far a plane can go with the fuel it takes off with, that is all.
    The most meaningful comparisons tend to come when you can visit one URL and get the information on several aircraft being compared.

    I’m not sure how to interpret the landing speeds in relation to what we know of planes like the Rafale.

    It is not just landing speed but also many other factors such as
    AoA, not stated in numbers like this are factors such as minimum wind over the deck, etc.

    Thanx, Bager1968 for your reference URL.

    Adrian

Viewing 15 posts - 196 through 210 (of 402 total)