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KKM57P

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Viewing 15 posts - 211 through 225 (of 577 total)
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  • in reply to: Eurofighter Typhoon news II #2503413
    KKM57P
    Participant

    So what? Both are NATO-Members and both should learn we are in the 21. century or both should better fly this sample!

    in reply to: Good News for the F-35 Program #2504036
    KKM57P
    Participant

    Additional cooler or APU?

    in reply to: Good News for the F-35 Program #2504148
    KKM57P
    Participant

    But the signal is your CO2 trail! Comprende?
    What you can’t suppress too, is your stagnation temperature.
    The IR signature is not really low it’s translated to another bands by the paint or your bird die through a heatstroke.

    in reply to: Good News for the F-35 Program #2504156
    KKM57P
    Participant

    Through the spread between high and low band.
    Then can it detect furthermore water vapour, O3 and nitrous gases.

    in reply to: Decision soon on F-22…….. #2446059
    KKM57P
    Participant

    Defense Secretary Confident With Proposed Budget Share
    (Source: Aerospace Industries Association; issued Feb. 27, 2008)

    3. Air forces recommendations (Air Force, Army, Navy, Marines)
    End production of the F-22 Raptor immediately at 183 planes.
    Continue development of the F-35 Lightning II Joint Strike Fighter, but do not start full-scale production until all flight tests have been proven completed.
    –Buy F-16 Block 60 fighters, two wings of MQ-9 Reaper drones, and 69 F/A-18E/F Super Hornets to make up for the anticipated gap in fighter aircraft.
    –Cancel the MV-22 Osprey and substitute cheaper helicopters while continuing production of the CV-22.
    –Build more C-17 cargo aircraft.
    –Move forward on the KC-X.
    –Substitute MQ-1C Warrior drones for Armed Reconnaissance Helicopters.
    -Move forward on the new long-range bomber.

    in reply to: Decision soon on F-22…….. #2446477
    KKM57P
    Participant

    Defense Secretary Confident With Proposed Budget Share
    (Source: Aerospace Industries Association; issued Feb. 27, 2008)

    3. Air forces recommendations (Air Force, Army, Navy, Marines)
    End production of the F-22 Raptor immediately at 183 planes.
    Continue development of the F-35 Lightning II Joint Strike Fighter, but do not start full-scale production until all flight tests have been proven completed.
    –Buy F-16 Block 60 fighters, two wings of MQ-9 Reaper drones, and 69 F/A-18E/F Super Hornets to make up for the anticipated gap in fighter aircraft.
    –Cancel the MV-22 Osprey and substitute cheaper helicopters while continuing production of the CV-22.
    –Build more C-17 cargo aircraft.
    –Move forward on the KC-X.
    –Substitute MQ-1C Warrior drones for Armed Reconnaissance Helicopters.
    -Move forward on the new long-range bomber.

    in reply to: Congrees about the F-35 #2447137
    KKM57P
    Participant

    It depends on how high the RCS is from other angles. Obviously there are certain angles that are less optimised than others.

    A strong return came from the wing, stabilizer etc. leading edge, trailing egde at 90°, therefor should a wing or stabilizer are highly sweeped.

    in reply to: Congrees about the F-35 #2447558
    KKM57P
    Participant

    It depends on how high the RCS is from other angles. Obviously there are certain angles that are less optimised than others.

    A strong return came from the wing, stabilizer etc. leading edge, trailing egde at 90°, therefor should a wing or stabilizer are highly sweeped.

    in reply to: Congrees about the F-35 #2447143
    KKM57P
    Participant

    Is this based on the golf ball statement or sourced from an actual analysis you can cite? And even assuming that number was right, which range of figures qualifies as LO and which as VLO?

    A golf ball RCS can be really big. The golf ball dimension is in the suboptical range! Mi scattering and some resonance effects.

    in reply to: Congrees about the F-35 #2447561
    KKM57P
    Participant

    Is this based on the golf ball statement or sourced from an actual analysis you can cite? And even assuming that number was right, which range of figures qualifies as LO and which as VLO?

    A golf ball RCS can be really big. The golf ball dimension is in the suboptical range! Mi scattering and some resonance effects.

    in reply to: Eurofighter Typhoon news II #2475098
    KKM57P
    Participant
    in reply to: Is the Typhoon a waste of time? #2484359
    KKM57P
    Participant

    I say only ADA.;)

    in reply to: Is the Typhoon a waste of time? #2485194
    KKM57P
    Participant

    What happens in Gemany when a politician will buy a single-engine fighter after the Lockheed Starfighter diaster?
    That is simlar to suizid!
    First Lockheed is a big no, since the Starfigter scandal.
    Second no more a single-engine fighter and this disqualified the F-35 for Germany.

    in reply to: Is the Typhoon a waste of time? #2485254
    KKM57P
    Participant

    Wow TWO whole years late. Compare that to similar programs. Let me remind you why it’s two years late. Weight reduction issues which where solved almost three years ago. The weight optimized models have already been produced and will be starting flight testing shortly.

    How much of the test programm processed. 1 or 2%? Whithout certified engines no testflight for the F-35 BF-1 (groundet since August 2008)

    Don’t confuse the F-35B with the two other models. The issues with the fan blades for the lift fan do not in any way affect them.

    The electrical system for the navalised F-35C variant was found to be undersized in power generation capacity, by no less than 35%, thus being unable to provide enough peak load electrical current to meet the demands of the EHC actuators when fully loaded. This resulted in two expensive remedial measures:
    The Hamilton Sundstrand main electrical generator had to be redesigned to provide the total 400 kiloWatts of power output; and
    The F135 engine gearbox had to be redesigned and requalified to deliver the additional power required to drive the uprated generator, this power produced in turn at the expense of available engine thrust.
    F135 engine prototypes have experienced failures of the driveshaft, and an October 2007 test forced a shutdown, the cause claimed to be cracking of a third stage low pressure turbine blade. The F135 turbine runs much hotter than any earlier engine, so if this becomes the cause of a reliability or durability problem, it will have to be derated at the expense of thrust performance.

    Pratt & Whitney’s F135 powerplant for the Lockheed Martin F-35 suffered a second turbine blade failure on 4 February 2008

    Not the lift fan is the problem, the engine is the problem.

    http://www.flightglobal.com/articles/2008/02/08/221423/blade-failure-will-delay-stovl-f-35b-jsf-first-flight.html

    Component Failures Impact F-35 Flight

    http://www.aviationweek.com/aw/generic/story_generic.jsp?channel=awst&id=news/aw081108p2.xml&headline=Component%20Failures%20Impact%20F-35%20Flight%20Testing

    in reply to: Is the Typhoon a waste of time? #2486221
    KKM57P
    Participant

    This thread is not about the F-35 and I hesitate to bring it into this but the F-35 is by no means a niche aircraft. Argue a few hundred here or there but it still is going to have a production run of upwards of 2000 and it still replaces multiple aircraft types.

    First should the F-35 ready, the F-35 is yet two years late. The F-35 ligtning II should renamend in Exploder II, the second grounding caused by an engine problem since August 2008. Caused by a design flaw. This design flaw is know yet since over two years. Or the design flaw with the weak gearbox for the standard F-135.

    Lockheed Martin and her allies in Congress know what is at stake and lets face it this is a huge high tech jobs program as well. Further to date there has been absolutely no indication that the F-35 will not meet the stated goals set forth by the DoD for the plane.

    The DOD is sure not amused about the permanent F-35 programm delays and cut the Lockheed payment. The payment takes place on success basis.

Viewing 15 posts - 211 through 225 (of 577 total)