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25deg south

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  • in reply to: Operation Crossbow – 1965 #1330338
    25deg south
    Participant

    That’s correct regarding source and transport, I’m not sure of the date either. However the nose turret source was different (dunno where though!) and I believe was installed earlier than the upper.

    Thats my recollection as well also I believe the mid-upper was, indeed from Argentina. IIRC the wheels have somewhat of a part Lincoln ancestry

    in reply to: Sunderlands in colour #1332477
    25deg south
    Participant

    It so lovely it looks for all the world like a well composed painting: taxying on the outers for finer directional control of course!

    in reply to: Some thing different for the jet boys.TSR2 #1332480
    25deg south
    Participant

    It really wasn’t a conspiracy, and why we labour this one (pun) is baffling. It was chopped because it was late, below spec, and out of financial control. .

    I can add to this that as well as the ongoing technical nightmares (Engines, Hydraulics and Electronics amongst others) the political consequencies of losing one were also becoming unacceptable , because of the cost, and being likened in the MoD at the time to be like “losing a destroyer” . In addition, the world political map of the 60’s was evolving beyond the aircraft’s concept. “Winds of change “…etc.
    Contrary to popular opinion (typically fuelled by self-appointed “experts” who have little experience of either the industry , the military, or the Civil Service) those in the procurement process are not actually complete idiots. Decisions of such magnitude are usually incredibly finely judged in the best overall interests of the nation and certainly in full appreciation of the hysteria and political backwash likely to be encountered.

    in reply to: Napier Lion in Sahara.. #1332976
    25deg south
    Participant

    I always thought the Fairey IIIF was powered by a Napier Dagger

    I should think there were half a dozen or more different engines fitted to IIIF’s over the years. The British Service aircraft were Lion Engines of various marks IIRC.

    in reply to: how often did it happen #1333017
    25deg south
    Participant

    my question is how often did German bombs drop in citys, towns or villages by accident…..

    Extremely often, especially in the early years using mainly dead reckoning before more reliable radio aids evolved properly. Even then …….
    Bomber command was no better (over 100 miles out was not uncommon) – as proven by the evidence of bombing flash photography before the days of the Pathfinders, H2S etc.
    Then of course the USAAF even bombed the wrong country on occasion.

    in reply to: Combat at highest altitude #2585355
    25deg south
    Participant

    Opps 😮 , I forgot about that one, It was a 707 or 720 that was used in a test of a fuel additive designed to reduce the chance of a fireball being caused by fuel being thrown forward from wing tank damage in the case of a crash landing.

    Thats the one. Also I guess one could include Russian TU-4 Bulls as being pretty big as SAM targets (I think they used TU-16’s later on IIRC) . For sheer span I guess the electric Helios is pretty impressive ( c.200′ ?) Then of course an early unmanned Saturn V test probably takes the overall weight prize….:)

    in reply to: Combat at highest altitude #2585538
    25deg south
    Participant

    QB-47!!!!, that’s got to be the biggest unmanned aircraft ever flown.

    Not quite. Remember the large scale passenger jet crash tests in the USA thirty or so years a ago? Lots of video of a simulated approach accident (including passenger cabin shots showing the dummies) where they actually missed the precise intended impact area.

    in reply to: USAF owned Soviet Military Jet & vise versa #2585555
    25deg south
    Participant

    You mean this one.
    iapr-vol-7-003.jpg

    Additionally there is a Mirage on the picture. But I doubt that it is a real Phantom, rather a mock-up. There is neither a possible source, nor a report of an intact loss, and no othe report mentioning the existence of a Phantom in Russia.

    Firstly I note the “Bounder ” in the background!
    The “Phantom Phantom” is still a bit of a mystery. Allegedly it was a composite from Vietnam wreckage ,some claim it was a flyer, others that it was just basically a mock-up. I would love to hear more from those who might have more real information after all these years. The “Mirage” and “Phantom” in the image are almost definitely poor mock-ups, similar to those used for certain forms of training ( e.g. Spetsnaz) in the former USSR.
    P.S. I wonder it there were several candidates. This particular photo would seem to predate the era of the seriously rumoured “Flying Phantom in the WP” which was in the 70’s .

    25deg south
    Participant

    Ahhh, the Shacks.

    Write it as “34 42 40.20 N 32 29 18.44 E”.

    To be strictly correct of course ,Eastings ( or Westings) should be three figure primaries ,e.g. 032 etc. instead of 32 etc. for good reason. Also beware decimal degrees or minutes which are common in GPS (or before that INAS ) expressions. 12.50′ is not 12′ 50″
    This laxity in expression has crept in from ignorance, largely imported from across the Atlantic, and causes chaos at times.

    in reply to: Rolling the Lanc.. #1335638
    25deg south
    Participant

    As Moggie has pointed out , most aircraft can go round a barrel roll in theory .Even allegedly the Beverley (according to Western Squadron at Farnborough in the early 70’s – AFAIK it wasn’t attempted!) This discussion was triggered after seeing the F-28 barrel-rolled before the show.

    in reply to: Latest News on "Dambusters" remake #1335655
    25deg south
    Participant

    Re. #66 above. One connection might be that Gibson of course later died in a Pathfinder Mossie.

    in reply to: helicopter pioneers #1251241
    25deg south
    Participant

    One of my favourites was the Lockheed AH56 Cheyenne. Remarkable for so many things, in particular as it was Lockheed’s firts and only foray into rotorcraft

    Not really.Lockheed Cl-595 Aerogyro c.1963 (below ) and before that the CL475 of the late 50’s

    in reply to: Unwelcome passenger in cockpit! #401124
    25deg south
    Participant

    I guess they must have declared and Esso-S! 🙂

    Partly depended on the Damage Cat I guess.

    in reply to: Harvard Question #1251470
    25deg south
    Participant

    Camlobe- “I sat down and worked out what the tip speeds were for the front prop. Why the front? It was six inches larger in diameter than the rear. Why? To prevent the tips of the rear from churning through turbulent flow from the front tips.”
    Funnily enough Handley Page had cracked that for the U.K. in the first World War for tandem contra-rotating props ( although its a pretty safe bet that it came earlier from the Germans) , albeit at opposite ends of a nacelle. I think the rear propeller had a slightly coarser pitch as well ?

    in reply to: helicopter pioneers #1251473
    25deg south
    Participant

    KAMAN… thank you.. i couldent remember the name.. intermeshing rotors.. a interesting design that never really caught on.. Kamovs co-axiel rotor design has been more succesful… though i am suprised no other helicopter builder has produced one…

    There are many others who worked with co-axial counter rotating rotors of course around the world, but not so successfully. In early days there was the Berliner Helicopter of 1908, The first Cierva Autogyro in 1922,Pescaro helicopter in Spain in 1924 ,later the Hiller UH-4 in the USA amongst others such as Bensen , culminating in the experimental ABC ( Advancing Blade Concept), of a few years ago. Breguet in France worked with coaxials IIRC amongst many others over the years. Even in U.K. there were the Servotec/Cierva Grasshoppers in the 70’s , the second version of which looked quite promising. They are now museum storage/display in the U.K. and doubtless somebody can produce more information on that particular story.

Viewing 15 posts - 481 through 495 (of 662 total)