Photos
Article

By Joe Pappalardo

The U.S. Military's flying saucer never came to fruition, but the physics that could have made it possible are used today in airplanes, missiles, and spacecraft.

Coanda Effect

In the early 1900s Romanian researcher Henri Coanda proved airflow sticks to a gently curved surface. This simple principle is a central tenet of hydrology and aerodynamics.

Saucer Application

Avro engineers found that routing exhaust over the lower hemisphere of a saucer forms a cushion beneath the craft, enabling it to hover. However, they overestimated the cushion's height and power.

Other Uses Some airplanes, such as the C-17 Globemaster III, use the Coanda effect to route exhaust across the tops of their wings to speed airflow, increasing lift when planes are flying at low speeds.

Vectored Thrust

Some aircraft can wiggle their jet engine nozzles to help steer. In certain designs, the entire nozzle can swivel to point in a new direction for even more dramatic maneuverability.

Saucer Application

America's saucer was designed to use the same propulsion system to hover or fly. Air was sucked into an intake and shunted to the rim of the craft; shutters directed the exhaust downward for hovering, or to the side for moving laterally.

Other Uses

Missiles can change direction by adjusting their nozzles; the F-22 Raptor's engine diverts its exhaust to allow sharp turns. The F-35B Lightning II, made to operate from carrier decks, points its exhaust nozzle downward to hover.

Round Fuselage

A curved shape is well-suited to aircraft that fly across a wide range of speeds. At high speeds, the shape dissipates the heat of air friction. At lower speeds, it generates lots of lift but little drag.

Saucer Application

Avro sold the U.S. on the idea of a supersonic aircraft that could take off vertically and intercept bombers. A disc would provide predictable aerodynamics at high and low speeds. And it could fly in any orientation.

Other Uses

Round shapes are used on the bottoms of space capsules and the Dream Chaser space plane. Blunt fuselages are ideal for reentry craft that go from hypersonic speeds to a halt.

 

Source: http://www.popularmechanics.com/technology/military/planes-uavs/the-real-tech-behind-flying-saucers-15075908

Comments
Order by: 
Per page: 
 
  • There are no comments yet
The Social Network Buzz - Comment using your Facebook, AOL, Hotmail or Yahoo! account
Info
Administrator
The Black Vault Owner/Operator
02.17.2013 (426 days ago)
Main UFOs
757 Views
0 Subscribers
All News by Administrator
Share This Article
Rate
1 votes
Related News
Pentagon-sponsored researchers have made the reach of an intensive laser beam longer by an order of magnitude.
9 hours ago · From Administrator
Researchers with the 711th Human Performance Wing at Wright-Patterson Air Force Base, Ohio, are now working to make missions lighter and faster for Airmen by testing Google Glass
10 hours ago · From Administrator
A new photo of a mysterious flying object over Kansas has been revealed.
Yesterday · From Administrator
Aurora, Texas was Roswell before Roswell: a middle-of-nowhere town that suddenly became surrounded by legend when an alleged alien visitor crash-landed from outer space.
Main UFOs
2 days ago · From Administrator
A YOUNG woman from a small north Pembrokeshire village believes she had a close encounter early this morning (Tuesday).
Main UFOs
4 days ago · From Administrator
The Real Tech Behind Flying Saucers