Norman explains Spitfire Wing Construction

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  • čas přidán 10. 09. 2024
  • This is for the technical minded, interested in the engineering of the Spitfire wing construction.
    From the documentary Secret Spitfires.com

Komentáře • 25

  • @yl9154
    @yl9154 Před měsícem

    This feels like a slit in a window, and leaving you on your thirst for the whole window. It is excellent, but leave you feeling like you only go the introduction and wanting the remainder too. The Spitfire wing is known to be very complex and I wish more of its mysteries had been explained in this video. But still, thank for the bit!

  • @lawxxxx9853
    @lawxxxx9853 Před 5 lety +4

    I was studying the wing-bridging structure of the Hurricane recently, and it's a lot of heavy tubing, looking rather agricultural. By comparison, this is so simple and elegant!

    • @davidbeattie4294
      @davidbeattie4294 Před 3 lety +2

      Good choice of words. The centre wing spar on a Hurri looks like it was stolen from a railroad bridge.

    • @paulgush
      @paulgush Před 3 lety +1

      @@davidbeattie4294 I haven't seen the Hurricane bridging structure, but railroad bridges, or trusses, are very structurally efficient. As an aero engineer, I can assure you that some new airplanes in 2021 are still being designed with tubular steel space frames

    • @VincentComet-l8e
      @VincentComet-l8e Před 3 lety

      @@paulgush
      It’s amazing how simple the Spitfire wing attachment system is - 8 bolts each side with just those two transverse beams at the front connecting the wings into a single rigid unit. It’s hard to credit that that alone could make such a strong structure.
      Unfortunately, the Hawker Co. were nowhere near as advanced and/or sophisticated and instead used heavy metal tubing round the cockpit and wing roots of the Hurricane. This also reached back and supported the rear fuselage too - a sort of internal metal skeleton. Virtually identical to a system they’d used on their earlier biplanes.
      They even used something similar on later aircraft and it makes you wonder how much weight could have been eliminated - absolutely crucial in high-performance fighters - from the Typhoon and Tempest if they’d been more up to date and used monocoque construction instead.
      Bridge-building techniques might not be suitable for fighter planes…

    • @paulgush
      @paulgush Před 3 lety

      @@VincentComet-l8e for structural efficiency, or strength to weight ratio, it's very hard to beat a truss. A monocoque certainly doesn't. The reason high speed airplanes adopted monocoque structures was not for weight savings, but aerodynamics. At high enough speeds, a fabric covering starts bulging outwards, losing its shape. This affected the Spit as well. For the faster, later models, they had to change the fabric covered control surfaces to metal skins, because pilots were losing control authority in power dives.

  • @julianneale6128
    @julianneale6128 Před 7 lety +5

    Fantastic explanation of the beautiful wing, thank you!

  • @thegrandmuftiofwakanda
    @thegrandmuftiofwakanda Před 3 lety +2

    Beautiful aircraft.

    • @VincentComet-l8e
      @VincentComet-l8e Před 3 lety

      Personally, I prefer Billie Piper's legs.
      And would be interested to test their compression strength.
      And resistance to shearing stresses…

  • @charlesbarbour2331
    @charlesbarbour2331 Před 7 lety +4

    So clear, so informative. thanks

  • @jimpowell5561
    @jimpowell5561 Před 7 lety +4

    nice, thank you for the presentation

  • @lawrencemartin6041
    @lawrencemartin6041 Před 4 lety +1

    Fantastic.....show me more!!

  • @paulgush
    @paulgush Před 3 lety

    0:25 leading edge is at the bottom, and trailing edge is at the top. The main spar, or upright of the D is at the 1/4 chord position. The center of lift also occurs 1/4 of the way from the leading to trailing edge, so making the 1/4 chord a straight, unswept line from wing root to tip, you put no twisting moment on the spar. That's why the Spit's elliptical wings are skewed forwards from root to tip

    • @TheMissing62
      @TheMissing62 Před 3 lety

      This is not true, you´re over simplifiying mixing aerodynamical and structural considerations (twisting of the spar...?) The "D" is the torsion box between the L.E. and the spar, and the wing has a 2,5º twist in order to keep the stall on the root first, maintaining aileron control yet in incipient stall.
      You´re plenty of information material available, so I left here a link in order to clear some considerations.
      www.aerosociety.com/media/4843/the-spitfire-wing-planform-a-suggestion.pdf

    • @paulgush
      @paulgush Před 3 lety

      @@TheMissing62 what do you think I said isn't true? The aerodynamic loads are inherently connected to the structure. That's why the wing is the shape it is. Note that thee is a difference between twist distribution (or washout) and twisting moment.

    • @paulgush
      @paulgush Před 3 lety

      @@TheMissing62 but don't take it from me, just read the last few sentences of section 2 and the first few of section 3 in the paper you cited. That's where the author mentions lining up the spar with the 1/4 chord to neutralize the twisting moment

    • @TheMissing62
      @TheMissing62 Před 3 lety

      ​@@paulgush OK, I apologize, maybe I rush to an answer of your comment or misunderstood it, but IMHO there are much more than AC, center of pressure and moment coefficient in the election of a semi elliptical planform like Shenstone used in the design of the Spitfire wing.
      There are more articles about the Spit wing, I can put the links if you are interested.
      Kind Regards.

    • @paulgush
      @paulgush Před 3 lety

      @@TheMissing62 peace. All I was saying is given the choice of an elliptical platform, this is why it's skewed

  • @drfill9210
    @drfill9210 Před 3 lety

    Is that a two seater in the background? If so, dibs on the first ride once completed!

  • @gregtaylor6146
    @gregtaylor6146 Před rokem

    Where was this filmed?

  • @gregorflopinski9016
    @gregorflopinski9016 Před 5 lety +1

    Can we get a how its made of the spitfire

  • @godmeherbaba5607
    @godmeherbaba5607 Před rokem

    💘💘💟💟❣❣

  • @clydecessna737
    @clydecessna737 Před 4 lety

    I was waiting for him to make some technical point. Why every video has to be fpr children I don't know. Nice man though.

  • @vrosi1963
    @vrosi1963 Před rokem

    What happened with the rumors of the Castel Bromwich Merlin motors being buried on the property and possibly one spitfire in a crate