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Pioneer

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Viewing 15 posts - 466 through 480 (of 610 total)
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  • Pioneer
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    It could have been plausible for North Vietnam to retaliate against such Thai air strikes.
    North Vietnam could have justified these counter-air strikes on the grounds of self-defence.
    This could have been the scenario were we could have seen the use of the North Vietnamese IL-28 ‘Beagle’ light bombers attacking Thai air bases!
    One would also question if Thailand would have the political willing to have its country openly attacked in support of American politics?
    The A-4 Skyhawk was primarily a lightweight strike aircraft, who thanks to its designers want for minimal size and weight gave it a good account of itself in self-defence air-to-air combat – but it was not a fighter like the MiG-17.
    Remember that the US Navy used its A-4 Skyhawks for dissimulated air-combat, ‘simulating’ the maneuverability of the likes of the MiG-15/17’s, but again this does not mean that it is equal to the MiG-17 – just the closest the Yanks have to it!
    And what about North Vietnam’s MiG-21’s?
    Did North Vietnam have Su-7 ‘Fitter’s’ in its inventory at the time of the Vietnam War????

    The other concern with Thailand carrying out offensive air ops against North Vietnam – although granted only punitive in size, could have encouraged more PRC support to North Vietnam or even the North Vietnamese being supplied with more capable and effective strike than the IL-28 ‘Beagle’.

    Regards
    Pioneer

    Pioneer
    Participant

    What about the A-37? It was in the pipeline at the time, IIRC. It is a jet, which would reduce the political sting of being given a strict attack type.
    A-4’s would also be a good all around choice, but I don’t know if we had too many to give away at the time???

    Matt

    The only problem that I see with the likes of the A-37 and A-4 (although I agree they were excellent and very capable aircraft in their own right!), is that if Thailand was to go down this path of supporting the U.S and carry out strike missions, then it would need to be able to defend its own aerospace to a degree or self-escort its strike missions.
    This is again why I think the F-5A would have been a better option.

    Regards
    Pioneer

    Pioneer
    Participant

    Given its size and cost the F-5A was indeed a fighter bomber, actually a very cost effective fighter bomber, probably better bang per buck than most aircraft the USA produced at that time, although a single F-5A not really rains down a carpet of bombs. But compared to other aircraft it can fly 6 missions a day (demonstrated). An F-105 can’t, or only with 25 people maintenance crew and a shipload of spares.

    Well that was one of the major problems with the U.S strategy in Vietnam – ‘Carpet bombing!
    So many U.S airmen and aircraft put into harms way to hit a target that could be.
    Instead of going after known tactical and strategic targets.
    ‘But let’s not go there’!

    I fully agree with you on the capability and maintainability of the likes of the Freedom Fighter. Anything more advanced, would have proven difficult for the Thai Air Force of the time to keep in the air.

    Regards
    Pioneer

    in reply to: Your favourite what-if fighter #2508945
    Pioneer
    Participant

    The P-600 was twin engined. You’re thinking of the P-610 which was the single-engined version of the P-600. There are two pictures of the model in this book:

    http://www.amazon.com/American-Secret-Projects-Interceptors-1945-1978/dp/1857802640/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1201138384&sr=1-1

    and also three pictures of a model of what appears to be a single-engine YF-17.

    So very right you are my friend

    Thank you!

    Regards
    Pioneer

    in reply to: Your favourite what-if fighter #2511664
    Pioneer
    Participant

    1. YF-12A (yes, the fighter version of the SR-71).

    3. YF-17 (I don’t mean the Hornet mutation, I meant in its original lightweight without the junk and still lean Cobra configuration).

    I always liked the idea of the Northrop P-600
    This was the single Pratt & Whitney F100 powered proposal of the YF-17
    (To this day I have not been able to find a good drawing or even better a 3-view drawing of this design)
    My search will continue!

    I still believe that this would have faired better in the USAF LWF competition

    Regards
    Pioneer

    in reply to: Your favourite what-if fighter #2512440
    Pioneer
    Participant

    Add-

    MiG Ye-8
    NA YF-107A
    Joint US/W German AVS
    Fairchild-Republic’s FX design

    in reply to: Your favourite what-if fighter #2512485
    Pioneer
    Participant

    Lavi
    F-16XL
    F-20 Tigershark
    Mirage G8
    F-18L
    Northrop Fang
    CF-105 Arrow

    ‘More too follow!

    in reply to: Tornado, after market for them? #2514893
    Pioneer
    Participant

    What about turning them into UCAV, to attack heavily defended targets?

    Regards
    Pioneer

    in reply to: Web site on aircraft engine specifications? #2518923
    Pioneer
    Participant

    Thanks my friend for your prompt help

    Regards
    Pioneer

    in reply to: Underground hangars, reprise #2519251
    Pioneer
    Participant

    I read somewhere that the Saab Viggen has a hinged tail fin, so that the height of the aircraft can be reduced, so as to allow it to fit in these underground airbases/hangers!
    Does anyone have a picture of a Viggen with its tail fin folded down??

    Regards
    Pioneer

    in reply to: Aussie News, Broad spectrum #2039782
    Pioneer
    Participant

    I think all this just goes to emphasis that Australia has to get its act of Defence together and in order.

    The issue of defence in ADF and in our Federal Politics has to be a more cohesive matter of importance.
    Every time we have a swing of government, one of new incoming government’s priority’s seems to be yet another ‘White Paper’ review of defence and the IDF.
    This has to stop!
    I think that defence has to have a review at least every 5-years, so as to give the ADF a health check of the current threats, and trends in warfare and technology changes.
    But this is purely for the good of defence as a whole, and not a political tool.

    I have to back the current Federal government’s new directive that Ministers holding portfolios will have to wait a minimum of 18-months before being able to be employed or financially involved with business which involves this portfolio.
    As I have stated in another previous subject topic – there are too many ex-ministers that have rolled over to comfortably into the defence sector over the past.

    I think the previous out going Federal Government was a perfect example (and the worst I can recall) of this political medaling and toying with Australia’s Defence.
    The previous (out-going) Prime Minster John Howard and his Right-Wing hardliners, over night (after the 9/11 attack) obsessively transformed the ADF onto an anti-terrorist war footing as a knee jerk reaction. This act was detrimental to what the ADF had been geared for under a previous ‘White Paper’ review, and for what the majority of the ADF had been training and equipping itself.
    To continue his want-to-be knee jerking reactions self claimed ‘Sheriffs’ to the United States-
    At the blink of an eye, John Howard committed us to a war in Iraq.
    This required the already over stretched ADF (especially the Army) which was committed to ops in East Timor and Afghanistan to swing back to a conventional war scenario.
    Then as this war progressed into an occupation force, the ADF has had to swing its training and equipment back to urban insurgency warfare scenario.
    Then as the United States began to up the anti, with North Korea and its ballistic missile development, John Howard decided that the new ‘Air Defence’ ships needed to be in the ABM game – so he announced that we would be part of the Standard 3 / ABM umbrella program – just like the big boys club
    This knee jerk decision will cause the new ‘Air Defence’ ships (the Spanish designed F100 Frigates) to be far more costly than first planned, as well as the last 13-years have testified – will more than likely cause technical integration problems, and most importantly a critical time delay of these important ships into operational service and or the scenario of being put into service, before all their systems are working 100% (i.e. the Collins Class sub, Adelaide Class FFG, and the SeaSprite program have been examples of these disastrous, costly and detrimental programs for the IDF)
    No we need a transparent ‘White Paper Review’ which can not be scraped, or pillage by what ever government comes into power, without a thorough and comprehensive investigation / senate inquiring, which would include the ADF and Australian defence industries, which are able to speak freely, without politic constraint, as to what new governments new wants or proposed changes will do to the ADF’s existing acquisition, research and development programs, training and very importantly moral and efficiency of the ADF as a whole.

    For at the end of the day the ADF is a small, but professional force which has to be flexible, and exercise initiative while being reasonable with what it would like and what it can realistically have when it comes to weapon systems and weapons platforms.
    For traditionally once chosen, these systems have to be kept and used for longer periods of time than other military force would, and yet kept combat efficient over this period of time.

    Regards
    Pioneer

    in reply to: Self Escorting fighter concept #2524219
    Pioneer
    Participant

    The most successfull was the F-117 so far. It killed key targets of an enemy, who was unable to do something about that really.
    The F-22 will behave in a similar way like a B-2. Go to the key-target “unchallenged” knock it out and return. Something similar is exspected from the future F-35 too.

    I have to disagree with you some what my friend!
    If you were to ask what the best ‘evasive strike aircraft concept’ was I would agree with you on the Lockheed F-117A!
    But the question was and is ‘self escorting fighter’!
    For if the F-117A is spotted or detected visually, it is a dead duck, as it has next to no self-defence capability and no air-to-air weapons.
    The title of fighter or fighter/bomber has always annoyed me greatly, when it comes to designating the Nighthawk.
    For the F-117A is a pure single-role aircraft – And this role is ‘strike’ (or could be a reconnaissance)

    P.S.
    The only scenario that I have heard about the F-117 being used as a fighter (or more so an interceptor!) is in the fiction of Tom Clancy’s ‘Red Storm Rising’, when the F-117’s take out the Soviet’s AWACS aircraft in Soviet aerospace as a pre emptive strike. This opens a corridor for conventional strike aircraft to kick open the door.
    Although I have to admit, I do like the concept and mission scenario!
    I have always wondered if the USAF got this idea of kicking in the air defence door of the Iraqi’s in Desert Storm, from this story.

    Regards
    Pioneer

    in reply to: Self Escorting fighter concept #2525399
    Pioneer
    Participant

    Today’s best ‘Self Escorting fighter concept’ would have to be the F/A-22A Raptor.

    Why?

    Again it is based on a large 100% purpose-built air supremacy fighter designed airframe as its basis.

    But when compared to the earlier F-15E, it has the following improvements and characteristics of:
    -a large internal fuel load
    -a large and powerful advanced technology radar (that takes EW in mind)
    -it retains an expellant power-to-weight ratio PWR (unlike the F-15E, due to
    external weight and drag)
    -an internal weapons carrying arrangement (in most cases)
    -it has a supercruise capability (without afterburner) with its offensive
    warload

    And the decisive piece of the equation – the F/A-22A Raptor has ‘stealth/low RCS’ and a true supercruise capability (without afterburner) with its offensive warload.
    This allows the Raptor the advantage to be more flexible in choosing in a lot of cases, weather it does battle with enemy air defence assets (fighter/interceptors).
    This gives greater flexibility to which direction it will attack from – having a better chance of bypassing ground-based air defence assets (Air search radars, AAA and SAMs).
    Added to this capability is advantage that the supercruise capability would give the Raptor in many cases, the choosing if it wishes to do air-to-air battle, or leave a given area more readably?
    And finally, the FA-22A with its internal offensive weapons load being carried internally, would not have to jettison it to do air-to-air battle, and then continue on to its assigned target

    This is my view
    Regards
    Pioneer

    in reply to: Self Escorting fighter concept #2525766
    Pioneer
    Participant

    I think the first true 100% effort of ‘Self Escorting fighter concept’ would have been the USAF/USN ‘TFX’ (Tactical Fighter Experimental) – the General Dynamics F-111 Aardvark project.
    But political intervention (Robert McNamara), service rivalry, and the realistic difference and requirements between land-based (Air Force) and Carrier-based (Navy) operations, were overlooked (blindly) and deliberately again and again!

    I think the first true successful ‘Self Escorting fighter concept’ was (not including the de Havilland Mosquito) the McDonnell Douglas F-15E Strike Eagle!

    Why?

    Because it based on a large100% purpose-built air superiority fighter designed airframe as its basis.
    This allowed for:
    – a large internal fuel load.
    – a large and powerful multi-role radar
    – an excellent power-to-weight ratio
    – a useful offensive warload (both air-to-air and air-to-ground weapons) – for it was to not just to defending itself against air interception, but to fight its way through to the target.

    And the decisive peace of the equation – the F-15E’s FAST Pack
    This FAST pack gives the Strike Eagle a quantum leap in range, and weapons carrying, and yet can be jettisoned to clean the aircraft to its air superiority performance back.

    This is my view
    Regards
    Pioneer

    in reply to: Dassault Avon powered Mirage IIIO prototype #2525799
    Pioneer
    Participant

    Speaking of facts, here’s what I found in publications from the 1960s, using the fabulous Google book search tool… Sens – looks like you’re wrong on this one. :p

    @ Pioneer – hope you like all the details. 😀 Here goes:

    Article 1 (during Le Bourget 1961)

    “The civil engine being shown is the RA.29/6 turbojet of 12,725 lb. of thrust. This version of the civil Avon powers the Caravelle 6. The company is also showing an RB.146 military Avon of 12,220 lb. of thrust with a reheat system that gives it an augmented thrust of 16,000 lb. In this form the engine is installed in the Dassault Avon Mirage IIIO. The same engine also powers the latest version of the Saab Draken, but in this case it has a Swedish reheat system.”

    “The Avon Mirage, as we showed in a special article in our issue for Dec. 2 1960, has been developed as an export version and the 16,000 lb.s.t. (with reheat) Avon 67 engine makes it one of the most potent weapons in development in Europe. An SEPR 841 rocket pack is an optional extra to obtain optimal performance at altitudes above 60,000ft., but even without this aid the Avon Mirage takes only a fraction over six minutes to reach 50,000 ft.”

    Source: “The Aeroplane and Astronautics, May 25, 1961”, compiled in The Aeroplane and Commercial Aviation News, 1966, pp. 586-587

    Article 2 (the Dec. 2 1960 article mentioned above)

    Rolls Royce Power
    For export, a prototype Mirage III is being built, powered by a Rolls-Royce Avon Mk. 67 or R.B.146, which is similar to some Lightning powerplants. The R.B.146 delivers 12,500 lbs static thrust and 16000 lb. with reheat, compared to the 9370/13200 Ib. of the Atar 9B in the Mirage IIIC. With an assumed intake efficiency of 85%, the British engine will maintain 12600 Ib. thrust at M=2 and 36000 ft. Installation of the R.B.146 involves virtually no modification, and this engine has a considerably better specific fuel consumption than the Atar.

    The engine compartment remains unchanged, the turbojets being almost identical in diameter except for the Avon’s slimmer afterburner. The R.B.146 slides forward on the same two lateral rails for installation as the Atar, after removal of the double-skinned rear fuselage. Rear fuselage doors give additional access, although the engine continues to be reached principally through the fuselage mainwheel wells for servicing. No change in intake configuration is needed despite the 3% increase in mass flow of the Avon, except for the alteration of the shock-cone supersonic movement ratio. Weight increase with the Avon is about 640 lb., which causes a slight aft CG movement. Time for an engine change is quoted by Dassault as two hours.

    As the other component of the intercepter powerplant, the SEPR 841 rocket pack is completely self-contained, with an integral 69 gal. tank for the nitric acid propellent, and a six- bolt attachment to the rear-fuselage recess. A telescopic spline-shaft picks-up via a pneumatic clutch with the separate turbojet accessory gearbox to drive the rocket pack pumps, which feed TX Furaline from a 32-gal. tank in the gun bay and the acid propellent to the combustion chamber. Rocket operation is controlled by a three-position switch in the cockpit which permits almost instantaneous election of half or full thrust (1,654 or 3,374 lb. at sea level). At full power, which reaches 3.704 Ib. at 52459 ft., there is a continuous output of 80 sec., which is naturally doubled at half-thrust.

    The specific consumption of the SEPR 841, which is manufactured by Hispano-Suiza, is 0.0048 Ib./lb./sec. at sea-level, and 0.00435 at 52500 ft Through the widespread use of light-alloy parts, stainless steel being limited to the turbine and some parts of the oxidizer circuit, the unit has a total dry weight of only 452 Ib. From the maintenance viewpoint, it is cleared for 50 flights between major checks. It is jettisonable for safety in a belly landing, and when not required, is replaced by a finned fuel tank of up to 130 Imp. gal. capacity.

    Source: The Aeroplane and Astronautics, Volume 99, Number 2563, Dec 2. 1960”, compiled in The Aeroplane and Commercial Aviation News, 1966, pp. 709

    Article 3 (exact publication details unknown)
    Currently shopping in the international fighter market are Australia, Israel and Switzerland, the main contenders being the F-104, and the Mirage III of Generale Aeronautique Marcel Dassault. There is also the excellent SAAB Draken, which is something of a dark horse, except in Switzerland, where the choice has narrowed between it or the Mirage.

    On purely a technical basis, the “export” Mirage III, powered by a Rolls-Royce R.B.146 turbojet, seems in a strong position. It is the only M = 2 interceptor which has shown a take-off and landing performance, with a full operational load, of less than 1,000 yd., plus a grass field capability. It is also a more recent design than the F-104, and is therefore that much further from obsolescence, the F-104 having originated from design studies in 1950, when Korea showed the need for more advanced American military aircraft.”

    Source: The Aeroplane and Commercial Aviation News, 1966, pp. 707

    Thanks for this great and informative information!
    Your efforts are obvious

    .

    I can understand why the RAAF and GAF/CAC were at their wits end, when they took on the Sabre/Avon combination program

    But what I still can not understand, why after all the technical effort and changes by Dassault to fit the Avon engine into the Mirage IIIO, primarily for the Australian (RAAF) needs, with all the headaches in someone’s hands and minds, the RAAF still knocked it back.

    Added to this, is the reason why after all this effort, by Dassault, that they did not push the Avon/Mirage combination to other potential customers (Israel is the prim customer that comes to mind – who would have seen the benefits in performance!!).

    The only reason that I can see, that Dassault did not push this obvious performance improved Mirage III, was the pro-all French drive of Nationalism around that time.

    Regards
    Pioneer

Viewing 15 posts - 466 through 480 (of 610 total)