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Author Topic: Annular wings  (Read 850 times)

Offline raafif

  • Is formally accused of doing nasty things to DC-3s...and officially our first whiffing zombie
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Annular wings
« on: December 26, 2021, 08:30:32 AM »
Sadly, only a few designs have used annular wings :icon_nif:
There was the 1906 Blériot III "closed-wing", the Belorussian Narushevich Ring-wing c.1980s? & the French SNECMA C.450 Coleoptere.

the Lee Richards plane is sometimes described as an annular wing but is really a "circular" wing or "disc-wing".
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Offline raafif

  • Is formally accused of doing nasty things to DC-3s...and officially our first whiffing zombie
  • Whiffing Insane
Re: Annular wings
« Reply #1 on: December 26, 2021, 08:30:55 AM »
However here is my contribution ... the Aerospatial A-990 ThrustLiner - single-engine ! + annular wing.
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Offline raafif

  • Is formally accused of doing nasty things to DC-3s...and officially our first whiffing zombie
  • Whiffing Insane
Re: Annular wings
« Reply #2 on: December 26, 2021, 09:02:40 AM »
Back in 1981 I was given a lift from Switzerland to England by a designer who was experimenting with Annular Sails for boats.  His scale model worked ok.

Mr Dyson has used the concept for his new radical design electric fans.

Here's a few ideas ...
« Last Edit: December 26, 2021, 09:04:19 AM by raafif »
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