AW.681 STOL

by   21.1k Tang0five  2 months ago

Before the C-17 was even a notion at McBoeing the folks at Armstrong Whitworth conceived this little number in the early 60s. A STOL transport aircraft to replace the piston powered types in service with (the rather ambitious) scope to produce a VTOL variant. Sadly, it remained a concept as the project was cancelled and the procurement of C-130s went about instead.

I’ve wondered a little off-piste from detailed plan drawings as I was again playing with the thrust vectoring concept and rather liked how it worked. I was pleasantly surprised at how much fun this thing is to land and I hope you feel the same! Controls are below with a recommended set of instructions at the bottom.

VTOL up for thrust nozzles in regular flight directing thrust backwards
VTOL neutral points nozzles directly downwards
VTOL fully down points the nozzles forwards and can be used as reverse thrusters on landing.
AG2 flaps
AG8 lights

Take off
With throttle to max move VTOL slider fully up.
Around forward motion has been achieved move slider down one notch on the display.
Around 75mph begin rotation and liftoff should be achieved around 85-95mph.
At your own leisure return nozzles to the level flight position for regular cruise.

Landing
Throttle 100% with VTOL in neutral approach speed can be as fast or slow as you like really depending on the size of runway. In this arrangement speed on landing is typically around 80mph given an approach speed of 175-200mph.
On landing you can slow down by shutting off power and breaking or keeping throttle at max you can move the vtol slider fully down as reverse thrust. The latter is quite effective at stopping this heap in no time at all. This is more than capable of operating off the carrier unfortunately spawning on the beast puts the wing too close to the island.

Spotlights

General Characteristics

  • Created On iOS
  • Wingspan 102.8ft (31.3m)
  • Length 91.6ft (27.9m)
  • Height 31.8ft (9.7m)
  • Empty Weight 56,444lbs (25,602kg)
  • Loaded Weight 69,966lbs (31,736kg)

Performance

  • Power/Weight Ratio 0.963
  • Wing Loading 31.0lbs/ft2 (151.3kg/m2)
  • Wing Area 2,257.1ft2 (209.7m2)
  • Drag Points 36524

Parts

  • Number of Parts 223
  • Control Surfaces 3
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  • Profile image
    21.1k Tang0five

    Thanks @GhostHTX I saw this as a concept drawing whilst in the process of looking at plans of another build all together. I got interested, read into it a wee bit more, played with thrust vectoring a little and before I knew it I had yet another build shelved by my distraction! It’s not VTOL though..... that devilment is beyond me - hats off to you old chap for making a whole series of them!

    14 days ago
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    26.9k GhostHTX

    How did you hide this from me? Bloody lovely, old boy!

    14 days ago
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    21.1k Tang0five

    Wow, thank you @Mustang51 that’s very nice of you to say, glad you enjoyed it!

    2 months ago
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    5,845 Mustang51

    This is a really beautiful model you made man! I spent about 30 minutes just taking off, landing, and taxiing with it. A real joy to fly

    +1 2 months ago
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    21.1k Tang0five

    Thanks @Trainzo your most kind!

    2 months ago
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    11.5k Trainzo

    Just magnific . Great job .

    2 months ago
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    11.5k Trainzo

    Just magnific . Great job .

    +1 2 months ago
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    21.1k Tang0five

    Yeah sure, supporting the original wouldn’t be a miss too! @Ntgblast76

    2 months ago
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    Hey TangOfive is it alright if I use the wings of this aircraft for one of mine?

    2 months ago
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    Np! Nice, quiet, and quick aircraft you made! @Tang0five

    2 months ago
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    21.1k Tang0five

    Thanks for you support @SaturnV @TheCreatorandDestroyer99 and @Chancey21 for spotlighting, most kind of you!

    2 months ago
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    21.1k Tang0five

    Thank you all! @Paul233 @altaccount @RAF1

    2 months ago
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    21.1k Tang0five

    Thanks @RamboJutter 223 parts my iPad can handle! Although it will run some of your 700 part builds albeit slowly and with every setting imaginable down. 800+ my tablet refuses to download. If it somehow manages to download it will crash on loading the level!

    2 months ago
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    71.5k RamboJutter

    All this for only 223 parts.. Wow.

    2 months ago
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    21.1k Tang0five

    Thanks! @ThePrototype

    2 months ago