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Schorsch

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  • in reply to: Royal Navy/Falklands Cost #2040104
    Schorsch
    Participant

    If people in are really worried about the long-term safety of various European countries (including Russia’s safety), then just looking at defence spending isn’t enough.
    At a fertility conference being held these days in Oslo it’s been revealed that with current fertility rates of 1.4-1.5 in Germany, Russia, Spain and Italy and other European countries, their populations will be halved within 44 years. The UK is doing better with 1.8, but you’re still looking at a decline, just not that dramatic.

    Immigration does nothing because studies have shown that the majority of the immigrants will fall in with the fertility trends of these countries.

    I have no links to this yet, the conference will end on the 5th, these are just the main points that have been reported in the press.
    In the face of a population halving within a mere 44 years, the issues of 2.5% or 3%, 180 or 200 Typhoons, 3 or 5 Sachsens, will seem like fairly small issues to me. More important is the issue of making it possible and attractive for a career couple to foster two children and still keep their jobs as well as having the rest energy and free time that western people want.

    Additionally, the reduction in population is one thing, the strong reduction in working population is another worrying fact. Before somebody is “gone”, he is in average 10 to 15 years retiree with little to none effective value to the economy.
    Europe hast lost several million jobs in the last decade, in Germany alone ~5 to 7 million people have left the working process since the pre-1990 (reunification falsifies the picture a bit). Due to spendy retirement systems the ability to invest in defence and infrastructure will be limited to zero in a not too far future. This problem affects most of the European countries and also the USA. Managing the mass of disappointed elderly people of which a good percentage will live impoverished after decades of work, may take the European countries all ability to defend against anything.

    in reply to: SAAB J-35 Draken manuevirity… #2525006
    Schorsch
    Participant

    for decade,SAAB J35 Draken served with danish , swedish and austrian AF.
    it never seen action,just how good is the aircraft,when compare with the aircraft of that era, such MIG-21,mirage-3,lightning and phantom jet?

    The Saab Draaken was quite a remarkable aircraft for its time and its producer – Sweden – given the limited resources Sweden had at hand. I think the maneuverability is quite good and possibly better than for other aircraft of that time. Some design features represent a very good design decision, for example the double-delta wing and the pivot intake.
    As weapon system it cannot compete with more advanced and costly designs as the Phantom or late MiG-21 versions (3rd generation).

    in reply to: Super Hornet buy to be reconsidered. #2526521
    Schorsch
    Participant

    check the combat radius of SH under different configurations and then check that of Eagle, huge difference.

    Do you have any data?

    in reply to: Super Hornet buy to be reconsidered. #2526567
    Schorsch
    Participant

    I guess the statement that an F-15E has substantially more strike radius than a F-18F with comparable warload is based largely on hearsay. Why do people consider the F-15E as so extremely long range?

    The known transonic drag problem of the Super Hornet (which is the reason for some poor performance parameters) does not really have an effect for strike mission radius.

    Given the fact that Australia operates Hornets it would be stupid to order 24 aircraft of a totally different type that is actually less advanced than the legacey Hornets they already have.

    in reply to: Soviet F111 equivalent #2526579
    Schorsch
    Participant

    The ride quality is nothing else than the gust response of an aircraft. The vertical load factor (when we consider vertical axis only) changes with the airspeed flucturations (and angle of attack, but lets consider a purely hotizontal gust).
    The function is:
    n ~ CL ~ IAS² * WingArea * Lift Curve Slope * Angle of Attack

    Canards only help in controlling the aircraft, the gust response is largely similar. The discomfort of low level flight is due to gusty conditions with high dynamic pressure. The pilot also needs to control the flight path, which may cause high workload (lots of disturbance, probably resonance with aircraft modes).
    For a gust load allevation it is rather necessary to use wing trailing and leading edge devices, which normally have insufficient reaction time. The canards on the B-1B were necessary so that the flight control system could control pitch, the elevators were not fast enough.

    in reply to: Super Hornet buy to be reconsidered. #2527398
    Schorsch
    Participant

    What is the intended mission for that aircraft at all?

    I guess strike and interdiction, so something the legacy Hornet can do but is not truly optimiszed for (poor payload range, sensors, you know it better than me). If Boeing wasn’t stupid they tied the contract so that a bail-out would cost so much money that it doesn’t make sense at all. They have dealed with changing governments before.

    in reply to: JSF strike tactics? #2528333
    Schorsch
    Participant

    Which is quite right if you are Uncle Sam 😉 I was approaching this from the standpoint of a user country like Australia, who will need every bit of range they can get, or Israel, who need to eke every bit of capacity from a set number of airframes; ie using the external racks to punch a hole in the AD network, then presto-chango :dev2: there is a hole in the defences, AND they have most/all of their RCS back.

    Matt

    From a range standpoint the carriage of external stores seems dubious: Though external tanks might offer better range the clean aircraft on internal fuel should have a formidable range, especially when the flight profile has more time at altitude.
    Anyways, there is hardly any aircraft more capable for those missions on the horizon. Compared to today’s aircraft of Israel and Australia (F-15I, F-18/E, F-111C) the F-35 will prove a huge leap forward. Of cousre, some particular missions will not be covered as good as it is today, for example carriage of excessive amounts of dumb bombs.

    in reply to: EA-18G #2528377
    Schorsch
    Participant

    And do not forget the Douglas B-66 Destroyer – based on the US Navy’s Douglas A-3 Warrior

    The similarities between the A-3 and B-66 were rather small in the end, although most of the changes had little technical reasons. Best example is the decision to replace the J-57 engines of the A-3 with J-71 engines in the B-66, a very very dubious decision.

    If the Air Force does similar thing with the EF-18G it gonna take some time and money. I guess the most effective solution would be to share the budget of additional aircraft for the USN and use it for the USAF if needed.

    in reply to: Royal Navy/Falklands Cost #2040563
    Schorsch
    Participant

    My argument was that during the 30s build up of German military power, Britain and France did virtualy nothing until it was too late. (for France anyways….allmost for Britain) The point being…..regardless of intentions today……what China will be like in 10 years is an unknown. They ARE building their armed forces up with very modern equipment , and to not take a long hard look at that and react in an appropriate way would be…..well…..very much like the allied powers in the 30s.

    I wouldn’t say they did nothing. Correct is that Nazi Germany increased its military budget dramatically in the 1930s. Advantage was that it didn’t possess a large army and could rebuilt it from the scratch, was forced to go new ways to compensate for some shortcomings. But the Wehrmacht of 1939 wan’t much stronger than the French forces at that time. The problem for the Allies: the British had a traditionally small army and needed time to get to France, French offensive capabilities were limited, though to “do something” they would had to act offensively against Nazi Germany.

    The disaster in May 1940 was due to a small core of trained German troops (basically the Panzer Divisonen and the few mechanized divisions, in lieu with Luftwaffe) acting under very good leadership but at the same time accepting high risks. The mass of the German army wasn’t any better than the British or French.

    in reply to: Soviet F111 equivalent #2528383
    Schorsch
    Participant

    Nothing new, see the F-111 and F-15E about that.

    The F-111 probably had scored some success if the program had not nuked its own budget and schedule. Probably one related to the other: “There is no thing like free lunch”, as Milton Friedman knows, and the very capable F-111 proposal of the 1960s was probably not possible within that budget. The common problem, see F-35.
    The F-15E was as far as I know basis for F-15 versions for Singapoor, Saudi Arabia, Korea and Israel (later deliveries in some cases). I don’t know about specific differences between F-15B/D and F-15E, but I guess the later has tougher structure and of course much more black boxes built in, it looks they didn’t even change the radar too much (no Terrain Following Radar).

    in reply to: Soviet F111 equivalent #2528386
    Schorsch
    Participant

    “TF-15A ‘Strike Eagle’ Second development TF-15A modified during 1982 for dedicated air-ground operations to potentially replace the F-111. Company funded demonstrator.”
    24th February 1984 Production go-ahead for F-15E.
    11th December 1986 Maiden flight of F-15E prototype.
    1988 First F-15E delivered to the USAF.

    Which sounds like a very good schedule. Only 4 years between go-ahead and delivery/IOC was probably only achievable because the aircraft was a modification and largely similar to the legacy Eagle (at least more similarities than the Suchoi to its legacy aircraft). And it was Cold War times.

    in reply to: F-35 forced break for F-35 #2531512
    Schorsch
    Participant

    The Typhoon is no longer looking at Norway

    Apparently David Hamilton (CEO of Eurofighter) says that Norway has unofficially made JSF the winner and provides a bad competitive environment, and therefore Eurofighter withdraws from the bidding competition for new fighter jets for the RNoAF.

    (stolen from militaryphotos.net)

    That is an interesting piece of news. I guess the Eurofighter leadership is a bit pissed off the fact that their presence is used to reduce contract price, while in the end the American offer is taken anyways. Happened in Korea and Singapoor. It is uneconomical and bad marketing if you compete in bids that you wouldn’t win under any circumstances.

    in reply to: 50th Anniversary of the first 707 flight #569446
    Schorsch
    Participant

    http://www.aero-news.net/index.cfm?ContentBlockID=040cda3a-a564-44d3-9cd4-6c0d26a9763c&

    And next year is 50th anniversary of the Phantom’s first flight, I guess the people of that era wouldn’t had believed if we had told them that today the most modern aircraft (A380, B787) are only a few Mach counts faster than the old B707.
    On the other hand, they produce one tenth of the noise and need one third of the fuel (per seat-mile). An A380 could haul three empty B707-120 packed in boxes.

    in reply to: A380's 100th commercial flight #569449
    Schorsch
    Participant

    It’s usually the width of the runways and the taxiways that’s the problem.. due to the extra large wing span and the outer starboard and port engines ingesting debris..if the AN-225 can land and take off from any of these ports ..i think the A380 could do likewise

    The AN-225 is operated under special regulations. If it can operate from their, it does not mean that commercial operations are feasible with aircraft of nearly similar size.

    in reply to: A380's 100th commercial flight #569686
    Schorsch
    Participant

    Indeed good news for Airbus. The single in-service aircraft helps to focus resources on this one. Looks like this time the “green banana” is little bit more yellow than it was when Airbus delivered the A340-600.

Viewing 15 posts - 1,846 through 1,860 (of 3,480 total)