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Slipstream

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Viewing 15 posts - 211 through 225 (of 236 total)
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  • Slipstream
    Participant

    You can get an even more realistic effect using tonal changes, softening and adding grain to the ‘film’.

    http://www.nomac.org.uk/pilots.jpg

    And you can go the other way starting with old monochrome pictures.

    http://www.nomac.org.uk/SUND11.jpg

    in reply to: First Fight in a Lanc #1576101
    Slipstream
    Participant

    That first picture has to be the best I have ever seen !!

    in reply to: Red Arrow's photo taken today #1604466
    Slipstream
    Participant

    Only three, or is that the best you could do ?

    in reply to: RR Merlin…. #1611505
    Slipstream
    Participant

    I’ve looked at this comment several times and thought it didn’t sound right.
    Having finally read it again with my brain engaged, for 8 thousandths, read 1/125th.

    1/125 = 0.008

    a rose by any other name 😉

    in reply to: RR Merlin…. #1612760
    Slipstream
    Participant

    Slipstream: I hope your information is correct, because I will be repeating it parrot fashion at dinner parties when I want to impress!

    I wonder what the constraints were on the builder of this Merlin model that made him choose that particular scale.

    Janie..’tis all true, volumes are a cube function, areas are a square function. I am not sure what constraints were imposed, there may be a convention in the model world that dictates 1/5 scale. It would be more practical but more expensive to go for a larger size from a metalurgical aspect and where tolerances become less critical. The closer to full size you go the easier it is to adhere to the scaling factor on component parts. For example, a 2mm thick piece of dural is fairly stiff, reduce it to 0.4 mm and it bends like kitchen foil. This means that, for example, conrods that were made of aluminium in the original have to be made of steel in the model.

    This will either impress or force a change of topic at your dinner parties 😉

    in reply to: RR Merlin…. #1612802
    Slipstream
    Participant

    I wonder if the fuel consumption is one-fifth of the original.

    If it is 1/5 scale then the capacity should be 8 thousandths of the original and consequently the fuel consumption would be about the same if the rev’s were kept as per the full size. However, bearing surfaces would only be reduced by a factor of 0.04 so friction would be a significant factor….waffle …yawn…. wouldn’t ya just love one in an RC flying Spitfire….

    in reply to: Ex Lincolnshire Bomber Base visit #1616197
    Slipstream
    Participant

    I belive Meatheringham has a small museum/visitor centre and some of the original buildings although the airfield has now returned to agriculture. They also have a ghost apparently, The Meatheringham lady.

    in reply to: German Zeppelins and Airships #1616236
    Slipstream
    Participant

    Is it possible that their ( Zeppelins ) destruction was ordered as part of the Versailles treaty? In any case the scrap value of the metals in post war Germany faced with reparation payments would have made it unlikely that any were preserved.

    in reply to: Famous People In the Air Force #1800681
    Slipstream
    Participant

    How about the rugby players John Orwin ( Cpl at Brize Norton 1980’s ) and Rory Underwood ( Flt Lt ).

    in reply to: Luton Spitfire Project? #1813852
    Slipstream
    Participant

    Slipstream: My Latin is rusty. What does your signature mean?

    Janie
    (Ego sum pulcra; ego sum doctra)

    It is supposed to mean ‘unusual old man that fly’ although literally it is something like Strange old men with wings. I think.

    in reply to: Luton Spitfire Project? #1814463
    Slipstream
    Participant

    I heard about barry’s Spitfire in 1990, I believe It was vandalised beyond repair in the mid 90’s (though I wonder if it would ever have been allowed to fly anyway) and was donated to a museum at Tangmere.

    in reply to: What was D-Day all about? #1819430
    Slipstream
    Participant

    Having spent time working with the French Airforce at Mont de Marsan I can say that they do not treat all English people like dirt. I was made very welcome !

    in reply to: Live BoB dig Channel 5 30 May 21:00 #1822059
    Slipstream
    Participant

    They did say that the Spitfire would form the basis for a restoration to static display standard. I agree that this program would have come across better if recorded and edited but interesting never the less.

    in reply to: W/T marking – anyone ID it? #1827585
    Slipstream
    Participant

    I always understood electrical bonding to be for preventing a potential difference build up ( static electricity ) to eliminate the risk of sparks which could ignite fuel vapours.

    in reply to: Spitfire Flying Characteristics #1828913
    Slipstream
    Participant

    I believe the change was to increase the rudder area to counteract the torque from a more powerful engine and a 4 blade prop. I also believe that a spin off of this was an increase in the crosswind limit. Trimming would be carried out the same – to relieve pressure on the stick. With regard to the rudder, the pilot may notice an increase in the force needed to move it in flight, not sure really, you’d need to ask someone lucky enough to fly both types.

Viewing 15 posts - 211 through 225 (of 236 total)