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de Havilland DH 106 Comet 1

53.2k Tang0five  5.7 years ago

To my abject horror I noticed I’ve never built anything by De Havilland. In recompense I give you the Comet 1. This is also coincides rather nicely with the 100th anniversary of British airways (we’ve all seen the ad on TV!) and was the first jet aircraft operated by the forerunner of BA, BOAC.

The de Havilland DH 106 Comet was the worlds first commercial jet airliner first taking to the air in 1949 with service commencing in 1952. Being relatively quiet and cutting flight times by a considerable margin she was an immediate market pleaser. Commercial success was curtailed by a series of catastrophic mid air break ups caused by the little known phenomenon of metal fatigue.

The issue was addressed but sales never recovered. The majestic Comet had pioneered the way into the unknown and taught aircraft manufacturers invaluable lessons.

Some notes on this build.
I don’t have 1.8 yet. Performance is a little slow at low altitude - I wanted a realistic cruising speed at height without it going supersonic!
1:1 scale
I also carefully selected a registration number that was not involved in mid air break up for this build as that would be a little morbid.

Spotlights

General Characteristics

  • Successors 4 airplane(s)
  • Created On iOS
  • Wingspan 114.3ft (34.8m)
  • Length 93.1ft (28.4m)
  • Height 27.2ft (8.3m)
  • Empty Weight 66,067lbs (29,967kg)
  • Loaded Weight 98,625lbs (44,735kg)

Performance

  • Power/Weight Ratio 0.683
  • Wing Loading 38.8lbs/ft2 (189.6kg/m2)
  • Wing Area 2,540.2ft2 (236.0m2)
  • Drag Points 27251

Parts

  • Number of Parts 420
  • Control Surfaces 8
  • Performance Cost 1,417
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  • Profile image

    420 parts😳

    2.6 years ago
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    4,589 Zerstorer

    Congratulations you got on Frantic's video!!!

    3.6 years ago
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    25.5k Mustang51

    @Tang0five yeah the history of the comet is incredibly interesting. Some people today look at it as a terrible death trap but it’s important to bare in mind that it was the very first of its kind and the issues it had couldn’t have been found in testing as it took thousands of flight hours and hundreds of pressurisations for the correct conditions to be met where the plane with fall apart. The later comets were very successful as an airframe but the world had moved on from the comet by then sadly

    4.9 years ago
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    53.2k Tang0five

    Thanks again! From what I’ve read the general strength of the airframe let it down and the square windows (that were supposed to be glued and riveted, were only riveted) exacerbated the cracks. Punch rivets (as opposed to drilled) were also used which created an imperfect cut allowing fatigue cracks to form. Still, someone had to learn the hard way.
    @Mustang51

    4.9 years ago
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    25.5k Mustang51

    Ouch, those square windows really grind my gears hahahaha. If only De Havilland chose to use round windows everything would have been fine

    4.9 years ago
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    53.2k Tang0five

    Thank you @Thenewowenbuilder glad you think so!

    5.6 years ago
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    Great

    5.6 years ago
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    34.5k GhostHTX

    Oh only a little. I am now employed in a middle management role by a leading chemists (rhymes with chutes) and it is challenging, in a fun kind of way. Also in a “bugger me I have a lot to do”, way too. FYI, its quarter past midnight here and I just stopped working. I just picked up SP again after a wee break, yesterday, the heli parts are chuffin lovely. Congrats again on making it into the club, old bean! @Tang0five

    5.7 years ago
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    53.2k Tang0five

    Thanks @GhostHTX again I feel you’ve also had a big impact in that outcome. You’ve been quiet lately - I hope your not being worked to death? :)

    5.7 years ago
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    @Tang0five well frantic Matty used your build on his video here

    5.7 years ago
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    34.5k GhostHTX

    Welcome to the club, old chap!

    5.7 years ago
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    53.2k Tang0five

    Thank you all for your support!
    @asteroidbook345 @spefyjerbf @Kungfuevan @Treadmill103 @SledDriver @OC3LOT1142 @QingyuZhou @Zott @WarHawk95 @Tonnkatu500 @GTAPRO @BRuthless @Avro683Lancaster @MEERKAT978 @IGNikolaev @jamesPLANESii @SakuraSaku @Silvan @Falkenwut

    5.7 years ago
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    53.2k Tang0five

    Thank you! @RamboJutter I think you’ve had a v strong influence on this result so thank you again! I dont know what one does with this status except continue imitating great British aircraft!

    5.7 years ago
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    53.2k Tang0five

    You are far too kind to me old bean thank you! Glad to hear from you once again! I trust you’ve been watching the rugger..... nail chomping stuff for sure, gutted but at the same time I felt the result was fitting for such a match. Japan’s going to be interesting! @GhostHTX

    5.7 years ago
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    @Tang0five congratulations on platinum old chap :)

    +1 5.7 years ago
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    53.2k Tang0five

    Thanks again buddy! @Trainzo

    5.7 years ago
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    34.5k GhostHTX

    Chuffin marvelous. Get yourself into the platinim club, pronto!

    5.7 years ago
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    42.7k Trainzo

    Just fantastic . I love it . Great job for a great plane . 👍

    +1 5.7 years ago
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    15.9k Vidal99977

    Dude, I just love the Comet @Tang0five

    +1 5.7 years ago
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    53.2k Tang0five

    Thank you all!! @RamboJutter @ThePilotDude @Vidal99977

    5.7 years ago
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    53.2k Tang0five

    Definitely on my radar although I was going to morph this into a later comet (maybe comet 4) and then into a nimrod. Time permitting of course! @Alien

    5.7 years ago
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    4,755 Alien

    Lovely job, old bean! Awaiting your AEW Nimrod with interest and not a little trepidation... (hint, hint)

    +1 5.7 years ago
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    53.2k Tang0five

    Thank you gentlemen! @Griffinthedragon @TMach5 @Feanor

    5.7 years ago
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    53.2k Tang0five

    And I thought my iPad was bad..... I can download up to 500 parts, but then it struggles building things past 400 parts... I feel your pain! @TheFantasticTyphoon

    +1 5.7 years ago
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    40.2k Typhoon03

    @Tang0five My device is too slow to download a plane with a 200+ part count.

    5.7 years ago
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